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1.
User program at the FRJ-2 reactor
In
2002 the EU funded access to the research infrastructure program
(ARI) "Jülich – Neutrons for Europe" (HPRI-2001-00268)
has completed its first year of operation. The program has started
in November 2001 with the purpose to support users from other European
countries to perform experiments at the Jülich research reactor.
Proposals
submitted to the ARI program are refereed by an international panel
headed by Prof. J. Colmenero from the University of the Basque Country.
In order to allow fast access, proposals are received for three
deadlines per year (February, July and November). For the same reason
the refereeing procedure is done using internet communications rather
than panel meetings. In order to handle the additional administrational
duties, a user secretariat was established. Figure 1 displays the
number of proposals received and the amount of beam time requested
at the four first deadlines. The figure also displays the number
of selected proposals and the amount of beam time given. The total
approved beam time of 206 instrument days in the first year exceeded
significantly the contractual deliverable time of 133 per year.
Figure
1 At the first four deadline requested (blue) and scheduled
(red) beam time in the frame of the European access program. The
red line displays the contractual deliverable beam time.
Figure
2 displays the scientific areas, where the proposals were placed.
More than 50% were coming from soft matter science or biology, reflecting
the distinctive strength of the Jülich instrumentation and
scientific background in this field. We note that two proposals
even dealt with topics from our cultural heritage, namely the study
of archaeological findings. The proposals came from 10 European
countries among which six do not have their own neutron scattering
facility. More than half of the users were new in the sense that
they never did an experiment at the Forschungszentrum Jülich
before. This clearly outlines the importance of the European funding
for foreign scientists, who without this support would not have
been able to access our facility.
Figure
2: Distribution of the European proposals on different subject
areas.
Aside
of this European access program 59% of the experiments were performed
by outside users. Figure 3 displays the origin of the different
user groups classified into different categories.
Figure
3: Origin of all external user groups classified into different
categories.
Finally,
in 2002 the "6th International Neutron Laboratory
Course" took place. This training course for students was supported
by the European Neutron Round Table. Again the number of applicants
(89) surpassed largely the available places. From the 45 accepted
participants 20 came from outside Germany.
2.
Instrumentation (F&E No. 23.10.5)
New
instrumentation and upgrading existing instrumentation is one of
the focal points of the Institute for Neutron Scattering. In 2002
the following activities are noteworthy:
- The
efforts to develop a "beyond the state of the art" neutron
spin echo (NSE) instrument for the Megawatt Spallation Source
SNS in the United States was followed with vigour. Test experiments
and model calculations on the magnetic field properties in particular
the field integral in homogeneities in superconducting coils were
carried out (see report M. Ohl et al.). From these studies it
became evident that in spite of flux pinning problems superconducting
coils may be used even for ultra high resolution NSE instruments
(F&E No. 23.60.0).
- The
work on the backscattering instrument for the FRM-2 reactor in
Munich came into its final phase. Most of the components are by
now fabricated. Particularly noteworthy are the linear motor driven
velocity drive gliding on aircushions of extremely high precision.
- At
the Jülich facility the refurbishment of the two small angle
scattering instruments KWS-1 and KWS-2 were in full swing. The
new electronics and the new detector for KWS-1 are completed and
are now being commissioned. Large parts of the new detector for
KWS-2 have been built this year.
- Finally,
the new technique of inelastic fixed window scans on the backscattering
instrument lead to first results. Figure 4 displays such scans
at an offset of 14.5m eV and Q = 1.88 for PEO/PPO
block copolymers with and without salt. From such a scan the temperature
dependence as well as the stretching of the relaxation function
can be determined very quickly.
3.
Polymers, membranes and complex fluids (F&E No. 23.10.2)
The
research of the institute concentrates on the field of soft condensed
matter systems emphasizing polymers, complex fluids with a touch
of biology. For this interdisciplinary research a close collaboration
between chemists and physicists is mandatory. Soft matter materials
are prepared and characterized in the chemistry laboratory of the
institute. We all benefit also strongly from a close collaboration
with the Institute Theory II of the IFF.
Polymer
synthesis
Aside
of the standard synthesis of homo- and blockcopolymers supporting
the bulk of the research activities in the institute, a number of
items specific to the chemistry need to be emphasized.
- Several
model polyethylenes have been prepared by anionic polymerisation
of butadiene and subsequent saturation of the double bonds. These
polymers were triblock copolymers with protonated labels at various
position along the chain. Additionally, a polyethylene three arm
star block copolymer with a hydrogen label in the center of the
star was synthesized.
- Careful
studies of the refractive index increment of polybutadienes with
various degrees of hydrogenation showed that the degree of deuteration
can be determined easily and accurately by dn/dc measurements.
Similarly, the microstructure may be such obtained.
- For
the first time, we were able to relate in detail the monomer conversion
and the initiation processes in anionic polymerisation with structural
details in combining in-situ high resolution 1H-NMR
(500MHz) and in-situ small angle neutron scattering (SANS). These
experiments appear to reveal completely new aspects of the anionic
polymerisation mechanism. For example initiation occurs over a
long time regime, where chain growth is already quite important.
In addition, in the very early initiation stages, large scale
aggregates are formed by cross association of the initiator molecules
with the living chain.
- In
the field of microemulsion efficiency boosting, new block copolymers
were developed which are more simple to synthesize than the polyalkane-PEO
systems. Furthermore, they allow to treat silicon oils which is
not possible with the conventional boosters.
- The
efficiency boosters used so far are not useful to stabilize emulsions.
By changing the design of the polymers it was possible to obtain
materials which now allow to stabilize emulsions.
Polymer
dynamics
In
2002 our studies focused on (i) the large scale dynamics of polymers
and its relation to rheological properties (molecular rheology)
and (ii) dynamic studies, in order to elucidate the motions behind
the a -relaxation in glass forming polymers
Large
scale dynamics and molecular rheology
- From
a combined measurement of the mean square segment displacement
and the single chain coherent structure factor of a reptating
chain a complete and consistent picture of the tube confinement
in the reptation model evolved (see report A. Wischnewski et al.).
- After
the observation of contour length fluctuations in a series of
studies on reptating chains of different molecular weights, now
by masking the outer parts of the chain by proper labelling it
could explicitly be shown that the loosening of the confinement
is related exclusively to the outer parts of the chain.
- In
order to study constraint release, NSE measurements on long chains
in different shorter chain matrices were performed. With decreasing
matrix length an increasing loosening of the confinement was observed.
In the limit of a short chain matrix the transition to Rouse motion
can be seen.
- In
a second class of studies relaxation quench experiments were performed,
in order to follow the chain relaxation in non-linear rheology.
In this way, the chain retraction process after a non-linear stretch
was identified (see report A. Blanchard et al.). On the basis
of a thorough characterisation of model branched polymers (H-polymers
and bi-products) we could confirm that backbone and arm relaxations
of a branched polymer can be treated in a decoupled hierarchical
way in time. We also showed that the tube dilution theories are
valid over the investigated time range up to the length scale
of the tube.
Dynamics
of the a -relaxation
- A
combined computer simulation and high resolution neutron scattering
study covering an unprecedented large Q-range showed that the
a -process may be understood as sublinear jump diffusion featuring
finite jump lengths (see report A. Arbe et al.).
- Recent
computer simulations on polyisobutylene suggested that the relaxation
dynamics may be described as the combination of jumps between
the split transconformations (tt jumps) and transgauche transition.
It was claimed to have resolved the apparent inconsistencies between
dielectric and NSE results on the one hand and NMR and ESR experiments
on the other hand. With a combination of neutron time of flight
and backscattering experiments on PIB samples with protons only
at the backbone it could be shown that an evaluation following
the scheme of the computer simulation leads to grossly inconsistent
elastic incoherent structure factors for the tt jump, while the
overall shape of the relaxation function can be accounted for.
On the other hand the concept of a sublinear diffusion process
is consistent with all data.
- The
experiments on glass forming materials in mesoscopic confinement
were extended from simple liquids to polymers. Researchers from
the Federal Institute of Materials Research and Testing (Bundesanstalt
für Materialforschung, BAM) were able to fill 25-200Å
pores in a glass matrices with Polydimehtylsiloxane (PDMS). As
in the simple liquid salol, a cut off of the glass typical low
frequency vibrations (Boson peak) by the geometric confinement
could be observed by inelastic neutron scattering. But the effect
is weaker for the polymer.
Biomimetic
mineralisation and cocrystallisation processes
Polymers
are able to modify the crystallisation processes of anorganic and
organic materials significantly. In this way, nature steers mineralisation
processes like the growth of bones or shells. Our research in this
field followed two lines
Mineralisation
in the present of polymeric additives in calcium carbonate
- The
role of the double hydrophilic block copolymer polyethyleneglycol-block-polymethacrylic
acid (PEG-PMMA) on the morphogenesis of calcium carbonate was
studied using contrast variation at the small angle scattering
machine. The goal was to determine the partial scattering functions
of the components. From the polymer partial scattering function
we found clear evidence that the polymers are distributed inside
the calcium carbonate crystals following a mass fractal distribution
with an fractal exponent of Df = 2.7.
Time resolved SANS experiments under calcium carbonate contrast
confirmed these results and indicated that the crystallisation
occurs via diffusion limited aggregation or percolation of clusters
of nano-particles.
- The
time evolution and growth of calcium carbonate mineralisation
was also studied in the presence of additives like the protein
Ovalbomin. While without the additive calcium carbonate nucleates
into thin plates of a thickness less than 30Å and growths
into porous micrometer large three dimensional particles, the
additives convert the growth towards compact mineral structures.
Ovalbomin itself denaturates during the mineralisation process
from a globular to a rod like structure. The proteins seem to
act as a nucleation center leading to a larger local accumulation
of Ca2+ ions.
Cocrystallisation
of partially crystalline polymers and paraffines
The
influence of polymeric additives on the formation of wax crystals
in crude oils and refined fuels are of scientific and practical
interest. Wax crystal modification allows to modify pour points
and cold filter plugging temperatures. Experiments on the random
crystalline amorphous block copolymer of ethylene butene revealed
that the biggest impact on wax crystal modification occurs if the
polymer self assembly temperature coincides with the onset of crystallisation
of the paraffin. SANS experiments gave insight into the various
structures and cocrystallisation processes that occur.
Biophysics
Inelastic
x-ray experiments were performed in order to study the longitudinal
acoustic branch of DNA in various conformations along the helical
axis. Advantages of this method are (i) that it accesses the zeroth
Brillouin zone and (ii) that the sample volumes (10mm3)
are small. Therefore, such experiments allow to use artificial D-DNA
as samples. Of disadvantage is the Lorentzian shape of the resolution
function (FWHM @ 1.5meV). The experiments reduced a clearly
visible sinusoidal LA branch which gives a reasonable sound velocity.
The present modelling concentrates on the understanding of the damping
mechanisms.
Complex
fluids
After
the polymer boosting effect has been established for the bicontinous
microemulsions the influence of amphiphilic polymers was investigated
also for droplet microemulsions. Thereby, asymmetric amphiphilic
polymers of the PEO-PEP type were used.
- In
the case of long water soluble blocks, homogenous distributions
of polymer around the droplets were found and only a depletion
zone around the droplet was avoided by the PEO block. No boosting
was observed.
- If
the oil soluble block was dominating, then the emulsification
efficiency of the polymer doped surfactants strongly increased.
At a maximum oil concentration a shape change from cylindrical
to spherical structures was observed.
- The
addition of homopolymers to bicontinous microemulsions allows
to tune its viscosity. However, as an adversary effect the emulsification
efficiency drops significantly. It was shown that this may be
contour balanced by adding in addition diblock copolymers such
that both efficiency and counter can be tuned simultaneously.
Soft
colloids
Since
01.10.2002 our institute participates in the newly funded Transregio-Sonderforschungsbereich
SFB-TR6 "Physics of colloidal dispersions in external fields".
In this Sonderforschungsbereich we will use PEP-PEO block copolymer
micelles as a tuneable model system for the investigation of the
influence of external shear on the structure and phase behaviour
of ultra soft colloids.
So
far, we have studied the relation between the microscopic pair potential
and the structure of ultra soft colloids. Star like (ultra soft)
micelles display a microscopic gel transition around the overlap
concentration C* which is reflected in the SANS data as a concentration
dependent structure factor peak showing a strong discontinous transition
around C*.
Further
research activities
Tunnelling
systems
- The
main goal of our research in this area is the common interpretation
of rotational tunnelling spectra, the phonon density of states
and librations on the basis of the low temperature crystal structures
and the intermolecular interactions parameterised e.g. as the
universal force field (UFF). All methyl halides so far studied
could be understood in such an approach.
- Ga-
or In-trimethyl compounds which are used as doping sources in
semiconductor production are an interesting case with a larger
number of inequivalent methyl groups. The rotational potentials
were identified in simultaneously studying quasielastic scattering
and tunnelling.
- A
new field is opened by test experiments on methyliodid water clathrates.
This material crystallises in the same symmetry called cubic as
a famous methane clathrate. First experiments reveal three tunnelling
lines signifying different adsorption sites.
Dieter
Richter
Personnel
2002/2003 and areas of activity
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Scientific Staff
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Dr.
J. Allgaier
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Polymer
synthesis, microemulsions, emulsions
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23.10.2
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Prof.
Dr. U. Buchenau
(until 30.06.2002)
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Dynamics
of glassforming materials
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23.10.2
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Dr.
H. Grimm
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Molecular
crystals, oriented macromolecules
Instrument Responsible: Backscattering spectrometer BSS1
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23.10.2
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Dr.
M. Monkenbusch
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Dynamics
of polymers and complex liquids, development of new spin echo
techniques
Instrument Responsible: Neutron Spinecho Spectrometer (NSE)
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23.10.2
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Dr.
M. Ohl
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Project
scientist for NSE at SNS
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23.10.5
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Dr.
M. Prager
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Rotational
tunneling
Instrument Responsible: Thermal time of flight spectrometer
SV 29
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23.10.2
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Dr.
W. Pyckhout-Hintzen
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Polymer
networks; linear, branched and composite polymers; rheology;X-ray
Instrument Responsible: Small angle neutron scattering KWS
1
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23.10.2
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Prof.
Dr. D. Richter
Institute Director
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Structure
and dynamics of polymers, glass transition, complex liquids
ESS Science Director
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23.10.2
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Dr.
D. Schwahn
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Phase
transitions in polymer systems, self assembly of crystalline
copolymers, biomineralisation
Instrument Responsible: Small angle neutron scattering KWS
1 and double crystal diffractometer DKD
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23.10.2
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Dr.
J. Stellbrink
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Star
polymers, polymer/colloid mixtures and living polymerization,
polymer colloids in external fields
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23.10.2
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Dr.
L. Willner
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Polymer
synthesis, characterization kinetics of polymer micelles,
polymer colloids in external fields
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23.10.2
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Dr.
habil. R. Zorn
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Rubbery
electrolytes, glass transition, dynamics in confinement, water
dynamics in glasses
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23.10.2
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Technical
Staff
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U.
Bünten
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Technician
at KWS 1 and NSE
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23.10.5
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W.
Bünten
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Development
work on neutron spin echo spectrometer for SNS
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23.60.0
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Ms.
M. Hintzen
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Technician
in the polymer characterization laboratory
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23.10.5
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Dipl.-Ing.
M. Heiderich
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Engineer
responsible for the KWS 1 and DKD instruments
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23.10.5
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Dipl.-Ing.
T. Kozielewski
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Engineer
backscattering spectrometer FRM 2
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23.10.5
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V.T.
Nguyen
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Technician
at SV29 spectrometer
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23.10.5
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Ms.
U. Sausen-Malka
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Electronic
laboratory
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23.10.5
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Dipl.-Ing.
R. Schätzler
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Head
of technical service group
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23.10.5
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Ms.
C. Schnitzler
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Secretary
user office
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23.10.5
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T.
Starc
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Technician
at BSS 1 spectrometer
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23.10.5
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R.
Stollenwerk
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Technician
at KWS 2, electronic data processing
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23.10.5
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Dipl.-Ing.
G. Vehres
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Electronics
engineer, head of electronics laboratory
Second Instrument Responsible: Thermal time of flight spectrometer
SV 29
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23.10.5
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Ms.
S. Oubenkhir
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Secretary
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Ms.
T. Ziebarth (since 07.06.02)
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Technician
in the polymer characterization laboratory
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23.15.0
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Scientists
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Dr.
R. Biehl
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Dynamics
of gels
Second Instrument Responsible: Neutron Spinecho Spectrometer
(NSE)
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23.10.2
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G.
Chen (since 16.10.02)
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Microemulsion
phases in polymer blends
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23.10.2
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A.
Fomenko
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Mineralisation
at polymer templates
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23.10.2
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Dr.
H. Frielinghaus
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Microemulsions
Instrument Responsible: Small angle neutron scattering facility
KWS 2
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23.10.2
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Dr.
Ms. M. Heinrich
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Polymer
processing, influence of branched polymers
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23.10.2
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Dr.
Ms. H. Hermes
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Structural
investigation of polymer-silicate nanocomposites
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23.10.2
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Dr.
O. Holderer (since 14.10.02)
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NSE
spectroscopy on supercritical fluid microemulsions
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23.10.2
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Dr.
S. Kahle
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Dielectric
spectroscopy, relaxations in complex polymer systems, partially
structure factor, glass transition
Second Instrument Responsible: Backscattering spectrometer
BSS 1
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23.10.2
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Dr.
G. Kali
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Instrument
Scientist at the IN 15 spectrometer at the ILL
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23.10.5
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Dr.
O. Kirstein (until 31.08.02)
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Project
scientist for backscattering instrument at FRM-II
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23.10.5
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Dr.
Ms. A. Niu (since 04.02.02)
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Living
polymerisation, NMR techniques, SANS
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23.10.2
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Dr.
A. Radulescu
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Aggregation
behavior of copolymers and wax crystallization
Second Instrument Responsible: Small angle neutron scattering
facility KWS 2
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23.10.2
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Dr.
M. Rheinstädter
(since 01.03.02)
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Second
Instrument Responsible: IN 12 at the ILL
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23.10.2
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Dr.
G. Rother (since 07.10.02)
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Polymer
colloids in external fields
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23.10.2
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Dr.
P. Rottländer (since 01.10.02)
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Project
scientist for backscattering instrument at FRM-II
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23.10.2
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Dr.
W. Schmidt
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Instrument
Responsible: IN 12 at the ILL
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23.10.5
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Dr.
A. Wischnewski
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Polymer
dynamics, ESS Scientific Advisory Committee (SAC) secretary
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23.60.0
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Thesis
Students
(University
of Münster)
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DI
Ms. A. Blanchard
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Relaxation
mechanisms in entangled polymers by means of the small angle
neutron scattering technique
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23.10.2
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Dipl.-Phys.
D. Byelov
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Investigation
of the role of polymers in microemulsions by small angle neutron
scattering
|
23.10.2
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|
Dipl.-Phys.
M. Laurati
(since 01.03.02)
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Depletion
interactions in micellar/polymer mixtures
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Dipl.-Chem.
R. Lund
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Exchange
kinetics between polymer micelles
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23.10.2
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Dipl.-Phys.
V. Pipich
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Formation
of structure in mixtures of two homopolymers and a diblockcopolymers
|
23.10.2
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Dipl.-Phys.
Ms M. Zamponi
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Dynamics
of entangled polymers
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23.10.2
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Guests
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Dr.
M. Abdel-Goad
(El-Minia Univ. Egypt)
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Rheology
of model polymers
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23.10.2
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|
Dr.
Ms. A. Arbe
(Univ. of the Basque Country, Spain)
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Intermediate
scale dynamics in polymer systems
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23.10.2
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|
Dr.
L.J. Fetters
(Cornell Univ., USA)
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In-situ
experiment on anionic polymerization
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23.10.2
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|
Prof.
Dr. J. Colmenero
(Univ. of the Basque Country, Spain)
|
Partial
structure factors in polymer melts, computer simulation and
self correlation function
|
23.10.2
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|
Prof.
E. Straube
(Univ. Halle)
|
The
influence of topological constraints at the microscopic level
in polymer networks and blends
|
23.10.2
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23.10.02
Condensed Matter
23.10.05 Operation and Further Development of the Neutron Source FRJ-2
23.60.0 Research and Development for the European Spallation Source
ESS
Publications
in journals
Alvarez,F.*;
Arbe,A.*; Colmenero,J.*; Zorn,R.; Richter,D.
Partial structure factors of a simulated polymer melt
Computational materials science, 25 (2002), S. 596 - 605
Arbe,A.*; Colmenero,J.*; Alvarez,F.*; Monkenbusch,M.; Richter,D.;
Farago,B.*; Frick,B.*
Non-Gaussian nature of the alpha-relaxation of glass-forming
polyisoprene
Physical review letters, 89 (2002), S. 245701
Ashbaugh,H. S.*; Radulescu,A.; Prud'homme,R.K.*; Schwahn,D.; Richter,D.;
Fetters,L.J.*
Interaction of paraffin wax gels with random crystalline/amorphous
hydrocarbon copolymers
Macromolecules, 35 (2002), S. 7044 - 7053
Botti,A.; Pyckhout-Hintzen,W.; Richter,D.; Straube,E.*
An in situ rheological and SANS investigation of the crosslinking
reaction of polyisoprene and dicumyl peroxide
Rheologica acta, 41 (2002), S. 475 - 482
Botti,A.; Pyckhout-Hintzen,W.; Richter,D.; Straube,E.*
Filled elastomers : polymer chain and filler characterization
by a SANS-SAXS approach
Physica A, 304 (2002), S. 230 - 234
Buchenau,U.; Wischnewski,A.; Zorn,R.; Hadjichristidis,N.*
Relaxations in the glass phase of silica and poly(methylmethacrylate)
PMMA
Philosophical magazine B, 82 (2002), S. 209 - 222
Farago,B.*; Arbe,A.*; Colmenero,J.*; Faust,R.*; Buchenau,U.; Richter,D.
Intermediate length scale dynamics of polyisobutylene
Physical review E, 65 (2002), S. 051803
Fetters,L. J.*; Lohse,D. J.*; Garcia-Franco,C. A.*; Brant,P.*; Richter,D.
Prediction of melt state poly(alpha-olefin) rheological properties
: the unsuspected role of the average molecular weight per backbone
bond
Macromolecules, 35 (2002), S. 10096 - 10101
Frielinghaus,H.; Schwahn,D.; Willner,L.; Freed,K. F.*
Small angle neutron scattering studies of a polybutadiene/polystyrene
blend with small additions of ortho-dichloro-benzene for varying
temperatures and pressures - part II : phase boundaries and Flory-Huggins
parameter
Journal of chemical physics, 116 (2002), S. 2241 - 2250
Gohr,K.*; Schärtl,W.*; Willner,L.; Pyckhout-Hintzen,W.
SANS investigation of PS-PB block copolymer micelles in a short
chain PB homopolymer matrix
Macromolecules, 35 (2002), S. 9110 - 9116
Heinrich,M.; Pyckhout-Hintzen,W.; Allgaier,J.; Richter,D.; Straube,E.*;
Read,D.J.*; McLeish,T.C.B.*; Groves,D. J.*; Blackwell,R. J.*; Wiedenmann,A.*
Arm relaxation in deformed h-polymers in elongational flow by
SANS
Macromolecules, 35 (2002), S. 6650 - 6664
Iatrou,H.*; Hadjichristidis,N.*; Meier,G.; Frielinghaus,H.; Monkenbusch,M.
Synthesis and characterization of model cyclic block copolymers
of styrene and butadiene : comparison of the aggregation phenomena
in selective solvents with linear diblock and triblock analogues
Macromolecules, 35 (2002), S. 5426 - 5437
Izawa,K.*; Ogasawara,T.*; Masuda,H.*; Okabayashi,H.*; Monkenbusch,M.;
O'Conner,C. J.*
Growth process for fractal polymer aggregates formed by perfluorooctyltriethoxysilane
: time-resolved small-angle X-ray scattering spectra and the application
of the unified equation
Colloid and polymer science, 280 (2002), S. 725 - 735
Keiper,J. S.*; Simhan,R.*; DeSimone,J. M.*; Wignall,G. D.*; Melnichenko,Y.
B.*; Frielinghaus,H.
New phosphate fluorosurfactants for carbon dioxide
Journal of the American Chemical Society, 124 (2002), 9, S. 1834
Kirstein,O.; Prager,M.; Johnson,M.R.*; Parker,S.F.*
Lattice dynamics and methyl rotational excitations of 2-butyne
Journal of chemical physics, 117 (2002), S. 1313 - 1319
Koizumi,S.*; Monkenbusch,M.; Richter,D.; Schwahn,D.; Farago,B.*;
Annaka,M.*
Observation of concentration fluctuations in polymer gels performed
by neutron spin echo
Journal of neutron research, 10 (2002), S. 155 - 162
Krishnamoorti,R.*; Graessley,W.W.*; Zirkel,A.*; Richter,D.; Hadjichristidis,N.*;
Fetters,L.J.*; Lohse,D. J.*
Melt state polymer chain dimensions as a function of temperature
Journal of polymer science B - polymer physics, 40 (2002), S. 1768
- 1776
Melnichenko,Y.B.*; Wignall,G.D.*; Schwahn,D.
Universal aspects of macromolecules in polymer blends, solutions,
and supercritical mixtures
Physical review E, 65 (2002), S. 061802
Menge,H.*; Pyckhout-Hintzen,W.; Meier,G.; Straube,E.*
Butadiene rubbers : topological constraints and microscopic deformations
by mechanical and small angle neutron scattering investigation
Polymer bulletin, 48 (2002), S. 183 - 190
Mihailescu,M.; Monkenbusch,M.; Allgaier,J.; Frielinghaus,H.; Richter,D.;
Jakobs,B.*; Sottmann,T.*
Neutron scattering study on the structure and dynamics of oriented
lamellar microemulsions
Physical review E, 66 (2002), S. 041504
Montes,H.*; Monkenbusch,M.; Willner,L.; Rathgeber,S.; Richter,D.;
Fetters,L.J.*; Farago,B.*
Direct observation of domain wall excitations in symmetric diblock
copolymer melts at and above the order-disorder transition
Europhysics letters, 58 (2002), S. 389 - 394
Moral,A.*; Arbe,A.*; Alegria,A.*; Colmenero,J.*; Pyckhout-Hintzen,W.;
Richter,D.; Farago,B.*; Frick,B.*
Heterogenous structure of poly(vinylchloride) as the origin of
anomalous dynamical behaviour
Journal of chemical physics, 117 (2002), S. 1336 - 1350
Prager,M.; Combet,J.*; Parker,S.F.*; Desmedt,A.*; Lechner,R.*
The methyl rotational potentials of Ga(CH3)3 derived by neutron
spectroscopy
Journal of physics: condensed matter, 14 (2002), S. 10145 - 10157
Prager,M.; Grimm,H.; Parker,S.F.*; Lechner,R.*; Desmedt,A.*; McGrady,S.*;
Koglin,E.*
Methyl group rotation in trimethylaluminium
Journal of physics: condensed matter, 14 (2002), S. 1833 - 1845
Prager,M.; Press,W.*; Asmussen,B.*; Combet,J.*
Phase III of methane : crystal structure and rotational tunnelling
Journal of chemical physics, 117 (2002), S. 5821 - 5826
Prager,M.; Schiebel,P.*; Combet,J.*
Rotational tunneling and molecular disorder in 4-iodo-toluene
Journal of chemical physics, 276 (2002), S. 69 - 79
Prager,M.; Schiebel,P.*; Grimm,H.
Rotational tunneling of NH4 and NH3D and dipolar interaction
in (NH3.6D0.4)2PtCl6
Journal of chemical physics, 116 (2002), S. 10338 - 10342
Rathgeber,S.; Monkenbusch,M.; Kreitschmann,M.*; Urban,V.*; Brulet,A.*
Dynamics of star-burst dendrimers in solution in relation to
their structural properties
Journal of chemical physics, 117 (2002), S. 4047 - 4062
Richter,D.; Monkenbusch,M.; Willner,L.; Wischnewski,A.; Arbe,A.*;
Colmenero,J.*
Experimental aspects of polymer dynamics
Polymer international, 51 (2002), S. 1211 - 1218
Schwahn,D.; Frielinghaus,H.; Willner,L.
Small angle neutron scattering studies of a polybutadiene/polystyrene
blend with small additions of ortho-di-chlorine-benzene for varying
temperatures and pressure fields - part I : mean field to 3D-ising
crossover behavior
Journal of chemical physics, 116 (2002), S. 2229 - 2240
Schwahn,D.; Richter,D.; Lin,M.*; Fetters,L.J.*
Cocrystallization of a poly(ethylene-butene) random copolymer
with C24 in n-decane
Macromolecules, 35 (2002), S. 3762 - 3768
Schwahn,D.; Richter,D.; Wright,P.J.*; Symon,C.*; Fetters,L.J.*;
Lin,M.*
Self-assembling behavior in decane solution of potential wax
crystal nucleators based on poly(co-olefins)
Macromolecules, 35 (2002), S. 861 - 870
Schwahn,D.; Willner,L.
Phase behavior and Flory-Huggins interaction parameter of binary
polybutadiene copolymer mixtures with different vinyl content and
molar volume
Macromolecules, 35 (2002), S. 239 - 247
Senapati,S.*; Keiper,J.S.*; DeSimone,J.M.*; Wignall,G.D.*; Melnichenko,Y.B.*;
Frielinghaus,H.; Berkowitz,M. L.*
Structure of phosphate fluorosurfactant based reverse micelles
in supercritical carbon dioxide
Langmuir, 18 (2002), S. 7371 - 7376
Stellbrink,J.; Allgaier,J.; Willner,L.; Richter,D.; Slawecki,T.*;
Fetters,L.J.*
Real time SANS study on head group self-assembly for lithium
based anionic polymerizations
Polymer, 43 (2002), S. 7101 - 7109
Ulrich,C.*; Kondo,S.*; Reehuis,M.*; He,H.*; Bernhard,C.*; Niedermayer,C.*;
Bourée,F.*; Bourges,P.*; Ohl,M.; Ronnow,H.M.*; Takagi,H.*;
Keimer,B.*
Structural and magnetic instabilities of La2-xSrxCaCu2O6
Physical review B, 65 (2002), S. 220507
Voigt,J.; Rücker,U.; Nerger,S.; Kentzinger,E.; Hupfeld,D.;
Schmidt,W.; Brückel,Th.
Structural and magnetic properties of [Er/Tb] superlattices
Journal of magnetism and magnetic materials, 240 (2002), S. 559
- 561
Volkmer,D.*; Bredenkötter,B.*; Tellenbröker,J.*; Kögerler,P.*;
Kurth,D.G.*; Lehmann,P.*; Schnablegger,H.*; Schwahn,D.; Piepenbrink,M.;
Krebs,B.*
Structure and properties of the dendron-encapsulated polyoxometalate
(C52H60NO12)12[(Mn(H2O))3(SbW9O33)2], a first generation dendrozyme
Journal of chemical physics, 124 (2002), S. 10489 - 10496
Wischnewski,A.; Richter,D.
ESS-SAC and European science groups evaluate ESS impact on Europe's
priority research themes
Neutron news, 13 (2002), S. 4 - 5
Wischnewski,A.; Monkenbusch,M.; Willner,L.; Richter,D.; Likhtman,A.
E.*; McLeish,T.C.B.*; Farago,B.*
Molecular observation of contour length fluctuations limiting
topological confinement in polymer melts
Physical review letters, 88 (2002), S. 058301
Yang,B.S.*; Lal,J.*; Mihailescu,M.; Monkenbusch,M.; Richter,D.;
Huang,J.-S.*; Kohn,J.*; Russel,W.B.*; Prud’homme,R.K.*
Neutron spin-echo study of dynamics of hydrophobically modified
polymer doped surfactant bilayers
Langmuir, 18 (2002), S. 6 - 13
Zorn,R.
Logarithmic moments of relaxation time distributions
Journal of chemical physics, 116 (2002), S. 3204 - 3209
Zorn,R.
Multiple scattering correction of polarized neutron diffraction
data
Nuclear instruments and methods in physics research section A, 479
(2002), S. 568 - 584
Zorn,R.; Frick,B.*; Fetters,L.J.*
Quasielastic neutron scattring study of the methyl group dynamics
in polyisoprene
Journal of chemical physics, 116 (2002), S. 845 - 853
Zorn,R.; Hartmann,L.*; Frick,B.*; Richter,D.; Kremer,F.*
Inelastic neutron scattering experiments on the dynamics of a
glass forming material in mesoscopic confinements
Journal of non-crystalline solids, 307-310 (2002), S. 547 – 554
Book chapter
Allgaier,J.
Polymer synthesis
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, this winter school was organized
on March, 04 - 15, 2002 in the Forschungszentrum Jülich by
the Institut für Festkörperforschung ... / ed.: J. K.
G. Dhont. - Jülich, 2002. - (Schriften des Forschungszentrums
Jülich, Reihe Materie und Material/Matter and Materials ; 10).
- 3-89336-297-5. - S. A4.1 - A4-16
Buchenau,U.
Glassy polymers
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, this winter school was organized
on March, 04 - 15, 2002 in the Forschungszentrum Jülich by
the Institut für Festkörperforschung ... / ed.: J. K.
G. Dhont. - Jülich, 2002. - (Schriften des Forschungszentrums
Jülich, Reihe Materie und Material/Matter and Materials ; 10).
- 3-89336-297-5. - S. C3.1 - C3.16
Dohmen,L.; Alefeld,B.; Kentzinger,E.; Rücker,U.; Stellbrink,J.;
Springer,T.; Richter,D.; Brückel,Th.
KWS3 : a focusing small angle neutron scattering instrument and
neutron refectometer at Jülich
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
33
Kahle,S.
Dielectric spectroscopy
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, this winter school was organized
on March, 04 - 15, 2002 in the Forschungszentrum Jülich by
the Institut für Festkörperforschung ... / ed.: J. K.
G. Dhont. - Jülich, 2002. - (Schriften des Forschungszentrums
Jülich, Reihe Materie und Material/Matter and Materials ; 10).
- 3-89336-297-5. - S. A3.1 - A3.18
Monkenbusch,M.
Membrane and microemulsion dynamics
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, this winter school was organized
on March, 04 - 15, 2002 in the Forschungszentrum Jülich by
the Institut für Festkörperforschung ... / ed.: J. K.
G. Dhont. - Jülich, 2002. - (Schriften des Forschungszentrums
Jülich, Reihe Materie und Material/Matter and Materials ; 10).
- 3-89336-297-5. - S. C6.1 - C6.31
Richter,D.
Polymer dynamics
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, this winter school was organized
on March, 04 - 15, 2002 in the Forschungszentrum Jülich by
the Institut für Festkörperforschung ... / ed.: J. K.
G. Dhont. - Jülich, 2002. - (Schriften des Forschungszentrums
Jülich, Reihe Materie und Material/Matter and Materials ; 10).
- 3-89336-297-5. - S. C2.1 - C2.37
Schwahn,D.
Investigations of polymers by small angle neutron scattering
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, this winter school was organized
on March, 04 - 15, 2002 in the Forschungszentrum Jülich by
the Institut für Festkörperforschung ... / ed.: J. K.
G. Dhont. - Jülich, 2002. - (Schriften des Forschungszentrums
Jülich, Reihe Materie und Material/Matter and Materials ; 10).
- 3-89336-297-5. - S. B6.1 - B6.17
Zorn,R.
Colloidal glasses
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, this winter school was organized
on March, 04 - 15, 2002 in the Forschungszentrum Jülich by
the Institut für Festkörperforschung ... / ed.: J. K.
G. Dhont. - Jülich, 2002. - (Schriften des Forschungszentrums
Jülich, Reihe Materie und Material/Matter and Materials ; 10).
- 3-89336-297-5. - S. C5.1 - C5.19
Zorn,R.
Inelastic neutron scattering : dynamics of polymers
Neutrons, X-rays and light : scattering methods applied to soft
condensed matter / ed.: P. Lindner ... - North Holland, Amsterdam,
2002. - 0-444-51122-9. - S. 221 - 255
Book
Richter, D. (Hrsg.)
The ESS Project, Volume II: New Science and Technology for the
21st Century
Jülich, ESS Central Projekt Team, c/o
Forschungszentrum Jülich, 2002, ISBN 3-89336-302-5
Invited talks
Allgaier,J.; Buchenau,U.; Endo,H.; Gompper,G.; Monkenbusch,M.;
Pyckhout-Hintzen,W.; Richter,D.; Willner,L.; Arbe,A.*; Colmenero,J.*
Future prospects of soft matter science at the European Spallation
Source
Joint Symposium of the Research Center Jülich and the Jaggiellonian
University in Krakow in co-operation with the Max-Planck Society
Krakow, Poland: 11.11.2002 - 13.11.2002
Allgaier,J.; Endo,E.; Gompper,G.; Monkenbusch,M.; Pyckhout-Hintzen,W.;
Willner,L.; Arbe,A.*; Colmenero,J.*; Richter,D.
Neutrons in soft matter science
Spanish Neutron Scattering Association (SETN) User Meeting
San Sebastian, Spain: 03.10.2002 - 04.10.2002
Buchenau,U.
Energy landscape - a central concept for the dynamics of liquids
and glasses
III. Workshop on Non-Equilibrium Phenomena in Supercooled Fluids,
Glasses and Amorphous Materials
Pisa, Italy: 22.09.2002 - 27.09.2002
Buchenau,U.
Energy landscape - a central concept for the dynamics of glasses
INF Meeting (Treffen des italienischen Instituto Nazionale per la
Fisica della Materia)
Bari, Italy: 24.06.2002 - 28.06.2002
Buchenau,U.
Experimente zur Dynamik glasbildender Materialien
Glasdynamik und Strukturbildung : WE-Heraeus-Ferienschule der Universität
Chemnitz
Chemnitz: 25.08.2002 - 06.09.2002
Buchenau,U.
Inelastic neutron and X-ray scattering
Workshop on Spectroscopic Investigation of the Collective Dynamics
in Disordered Systems
Trieste, Italy: 17.06.2002 - 28.06.2002
Byelov,D.; Frielinghaus,H.; Endo,H.; Allgaier,J.; Richter,D.
Polymer boosting effect in the droplet phase studied by small
angle neutron scattering
Sixth European School on Scattering Methods Applied to Soft Condensed
Matter
Bombannes, Frankreich: 25.05.2002 - 01.06.2002
Frielinghaus,H.; Byelov,D.; Allgaier,J.; Richter,D.; Jakobs,B.*;
Sottmann,T.*; Strey,R.*
Small angle neutron scattering studies of microemulsions in the
droplet phase with polymer as an efficiency booster
XII. International Conference on Small Angle Scattering
Venice, Italy: 25.08.2002 - 29.08.2002
Heinrich,M.; Pyckhout-Hintzen,W.; Allgaier,J.; Richter,D.; McLeish,T.C.B.*;
Read,D.*; Straube,E.*; Wiedenmann,A.*
Time evolution of strain relaxation in a model H-branched polymer
by SANS
XII. International Conference on Small Angle Scattering
Venice, Italy: 24.08.2002 - 29.08.2002
Kahle,S.
High resolution inelastic neutron scattering spectroscopy
Joint ICTP-INFM School and Workshop on Spectroscopy Investigation
of the Collective Dynamics in Disordered Systems
Trieste: 17.06.2002 - 28.06.2002
Kahle,S.
Local dynamics in polymers
Joint ICTP-INFM School and Workshop on Spectroscopy Investigation
of the Collective Dynamics in Disordered Systems
Trieste: 17.06.2002 - 28.06.2002
Monkenbusch,M.
Neutron spin echo study on the modification of surfactant membrane
properties due to polymer addition
American Conference on Neutron Scattering (ACNS)
Knoxville, USA: 23.06.2002 - 27.06.2002
Monkenbusch,M.
Segmental dynamics and confinement in polymer melts
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Ohl,M.; Monkenbusch,M.; Bünten,W.; Richter,D.; Lieutenant,K.*;
Zsigmond,G.*; Krist,T.*; Pappas,C.*; Mezei,F.*
High resolution NSE spectrometer for spallation sources
Conference on Polarized Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Ohl,M.; Monkenbusch,M.; Richter,D.
Progress on NSE correction devices
Techni-Meeting 2002 : Orsay, Paris
Paris: 17.10.2002 - 18.10.2002
Pipich,V.
Critical behavior of a ternary polymer blend near the Lifshitz
line
Sixth European School on Scattering Methods Applied to Soft Condensed
Matter
Bombannes, France: 25.05.2002 - 01.06.2002
Prager,M.
Rotational potentials studied by spectroscopy and relaxation
6th International Conference on Quasielastic Neutron Scattering
Potsdam: 04.09.2002 - 07.09.2002
Pyckhout-Hintzen,W.
Polymers and fibers
ESRF Workshop
Grenoble, Frankreich: 11.02.2002 - 13.02.2002
Pyckhout-Hintzen,W.
Polymers and fibers
Deutsche Neutronenstreutagung
Bonn: 15.05.2002
Pyckhout-Hintzen,W.
Polymers and fibers
XII. International Conference on Small Angle Scattering
Venedig, Italien: 25.08.2002 - 29.08.2002
Richter,D.
ESS - new horizons for science and technology
ESS European Conference
Bonn: 16.05.2002 - 17.05.2002
Richter,D.
European spallation neutron source project
International Meeting of the European Spallation Source on Flexibility
and Function of Proteins : Universität Heidelberg
Heidelberg: 25.01.2002 - 27.01.2002
Richter,D.
The European Spallation Source - a beacon for research
10. Jahrestagung der Deutschen Gesellschaft für Kristallographie
(DGK) 2002 : Universität Kiel
Kiel: 04.03.2002 - 07.03.2002
Richter,D.
Wax control by self-assembling polymers - a science approach
6th International Symposium on the Science and Technology of Polymer
Assembly : the Global Strategy in 21st Century
Kyoto, Japan: 31.01.2002 - 01.02.2002
Richter,D.; Monkenbusch,M.; Willner,L.; Wischnewski,A.; Arbe,A.*;
Colmenero,J.*
Polymer dynamics from large to small scales
American Conference on Neutron Scattering (ACNS)
Knoxville, USA: 23.06.2002 - 27.06.2002
Richter,D.; Monkenbusch,M.; Willner,L.; Wischnewski,A.; Arbe,A.*;
Colmenero,J.*
Polymer dynamics from large to small scales
XII. International Conference on Small Angle Scattering (SAS)
Venice, Italy: 25.08.2002 - 29.08.2002
Schwahn,D.
Nucleation and growth of CaCO3 minerals on biomimetic templates
studied by small angle neutron scattering
XII. International Conference on Small Angle Scattering
Venice, Italy: 25.08.2002 - 29.08.2002
Willner,L.; Lund,R.; Radulescu,A.; Monkenbusch,M.; Richter,D.
Time-resolved SANS for the determination of polymer exchange
kinetics in block copolymer micelles
XII. International Conference on Small Angle Scattering
Venice, Italy: 25.08.2002 - 29.08.2002
Wischnewski,A.
Status of the ESS project
Conference on Perspectives of Neutron Scattering for the Earth Sciences
with the ESS
Cambridge, UK: 05.01.2002 - 08.01.2002
Other talks
Allgaier,J.
Amphiphile Blockcopolymere zur Effizienzsteigerung von Tensiden
Firma Böhme
München: 13.11.2002
Frielinghaus,H.; Byelov,D.; Allgaier,J.; Richter,D.; Sottmann,T.*;
Strey,R.*
Mikroemulsionen mit Polymerbeigaben untersucht mit Neutronenkleinwinkelstreuung
Kolloquium : Universität Münster
Münster: 14.11.2002
Grimm,H.
Statics and dynamics of DNA
Universität Konstanz
Konstanz: 23.04.2002
Grimm,H.
Statics and dynamics of DNA as seen by neutrons
Workshop on Biology meets Physics : Forschungszentrum Jülich
Jülich: 20.02.2002
Kahle,S.
Segmental dynamics in polyisobutylene : comparison between neutron
scattering and computer simulations
7. Labortreffen Relaxationsdynamik
Rostock: 16.12.2002 - 17.12.2002
Kahle,S.
Untersuchung der lokalen Relaxation von Polymeren mittels Neutronenstreuung
6. Labortreffen Relaxationsdynamik
Halle: 18.02.2002 - 19.02.2002
Kirstein,O.; Kozielewski,T.; Prager,M.; Andersen,K. H.*
The 0.9 My eV backscattering spectrometer for the ESS
Jülich ESS Days
Bad Honnef: 15.04.2002 - 16.04.2002
Monkenbusch,M.
Instrumentierung für die ESS
ESS Tage
Bad Honnef: 15.04.2002 - 16.04.2002
Monkenbusch,M.
Neutronenspinechospektroskopie und Bewegungen in weicher Materie
SFB Workshop Zeitskalen und Spektroskopie : Universität Halle
Halle: 27.03.2002
Ohl,M.; Bünten,W.
Progress of the feasibility study for a highest resolution NSE
spectrometer
Workshop NSE for the SNS : Forschungszentrum Jülich
Jülich: 11.11.2002 - 12.11.2002
Ohl,M.; Monkenbusch,M.; Bünten,W.; Richter,D.; Lieutenant,K.*;
Zsigmond,G.*; Krist,T.*; Pappas,C.*; Mezei,F.*
Neutron spin echo technology at pulsed sources : a feasibility
study
ESS Tage
Bad Honnef: 15.04.2002 - 16.04.2002
Prager,M.
A walk through the tunnel landscape with special emphasis to
instrumentation
Toni Heidemann Symposium
Grenoble, France: 29.11.2002
Prager,M.
Status and experience with the time-focusing thermal TOF-spectrometer
SV29 at Jülich
PSI Villigen
Villigen: 05.02.2002
Richter,D.
Die Europäische Spallationsquelle (ESS) - European Source
of Science
Kolloquium : Universität Köln
Köln: 17.12.2002
Richter,D.
ESS project overview
Kolloquium : Universität Tokai
Tokai, Japan: 04.02.2002
Richter,D.
European spallation neutron source project
Kolloquium bei der Akademie der Wissenschaften
Düsseldorf: 06.02.2002
Richter,D.
Neutron backscattering : from the early days to polymer glasses
and non-Gaussianity
Toni Heidemann Symposium
Grenoble, France: 29.11.2002
Richter,D.
Neutron spin echo in soft matter science
Kolloquium : Firma ExxonMobil
Annandale, USA: 24.10.2002
Richter,D.
Neutrons in soft matter science
Seminar : Firma ExxonMobil
Annandale, USA: 23.10.2002
Richter,D.
Soft-Matter-Forschung am IFF : eine Einführung
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Richter,D.
The European Spallation Source
Kolloquium : Universität Paderborn
Paderborn: 10.01.2002
Richter,D.
The European Spallation Source
Kolloquium : Magnushaus Berlin
Berlin: 11.06.2002
Schwahn,D.
Grundlagen der Neutronenbeugung im Kleinwinkelbereich
Workshop Grundlegende Aspekte der Biomineralisation im DFG-Schwerpunktprogramm
Prinzipien der Biomineralisation
Bochum: 07.10.2002
Schwahn,D.
Methode der Kleinwinkelstreuung mit Neutronen zur Untersuchung
nano- und mesoskopischer Strukturen
Kolloquium : Universität Mainz
Mainz: 07.02.2002
Schwahn,D.
Untersuchungen zur Keimbildung und dem Kristallwachstum von CaCO3
in wäßriger Lösung an biomimetisch strukturierten
Grenzflächen mittels Neutronenkleinwinkelstreuung
1. Berichtskolloquium Prinzipien der Biomineralisation
Bonn-Röttgen: 20.06.2002
Sottmann,T.*; Müller,S.*; Strey,R.*; Richter,D.; Allgaier,J.
Giant structures in microemulsions : SANS versus SLS
ACS Meeting
Boston, Mass.: 18.08.2002 - 22.08.2002
Stellbrink,J.
Streumethoden zur Untersuchung 'Weicher Materie'
Seminar : Fachhochschule Jülich
Jülich: 05.11.2002
Zorn,R.
Dynamics of confined glass-forming systems observed by neutron
scattering
Seminar : Texas Technical University
Lubbock, USA: 26.11.2002
Zorn,R.; Richter,D.; Hartmann,L.*; Kremer,F.*; Frick,B.*
Dynamics of glass forming liquids in spatial confinement
Workshop on Slow Dynamics of Soft-Matter and Biological Molecules
Studied by Neutron Scattering
Tsukuba, Japan: 07.03.2002 - 08.03.2002
Posters
Blanchard,A.; Pyckhout-Hintzen,W.; Heinrich,M.; Richter,D.
Relaxation mechanisms in a stretched linear polymer melt studied
by SANS
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Blanchard,A.; Pyckhout-Hintzen,W.; Heinrich,M.; Richter,D.
Relaxation mechanisms in a stretched linear polymer melt studied
by SANS
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Botti,A.; Pyckhout-Hintzen,W.; Richter,D.; Straube,E.*; Urban,V.*
Filled elastomers : polymer chain and filler characterization
by a SANS-SAXS approach
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Byelov,D.; Frielinghaus,H.; Allgaier,J.; Richter,D.; Müller,S.*;
Sottmann,T.*; Strey,R.*
SANS studies of bicontinuous microemulsions with homopolymer
and diblock copolymer additions
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Byelov,D.; Frielinghaus,H.; Allgaier,J.; Richter,D.; Müller,S.*;
Sottmann,T.*; Strey,R.*
SANS studies of bicontinuous microemulsions with homopolymer
and diblock copolymer additions
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Byelov,D.; Frielinghaus,H.; Allgaier,J.; Richter,D.; Müller,S.*;
Sottmann,T.*; Strey,R.*
SANS studies of bicontinuous microemulsions with homopolymer
and diblock copolymer additions
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Frielinghaus,H.; Allgaier,J.; Byelov,D.; Richter,D.
Small angle neutron scattering results on the polymer boosting
effect in the droplet phase
14. SIS Conference
Barcelona, Spain: 09.06.2002 - 14.06.2002
Frielinghaus,H.; Byelov,D.; Allgaier,J.; Richter,D.; Jakobs,B.*;
Sottmann,T.*; Strey,R.*
Small angle neutron scattering studies of microemulsions in the
droplet phase with polymer as an efficiency booster
Deutsche Neutronenstreutagung
Bonn: 15.05.2002
Frielinghaus,H.; Byelov,D.; Allgaier,J.; Richter,D.; Jakobs,B.*;
Sottmann,T.*; Strey,R.*
Small angle neutron scattering studies of microemulsions in the
droplet phase with polymer as an efficiency booster
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Heinrich,M.; Pyckhout-Hintzen,W.; Richter,D.; Straube,E.*; Wiedenmann,A.*
Relaxation dynamics of entangled branched polymers investigated
by SANS
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Heinrich,M.; Pyckhout-Hintzen,W.; Richter,D.; Straube,E.*; Wiedenmann,A.*
Time evolution of strain relaxation in a model-branched H-polymer
by SANS
Deutsche Neutronenstreutagung
Bonn: 15.05.2002
Heinrich,M.; Pyckhout-Hintzen,W.; Richter,D.; Straube,E.*; Wiedenmann,A.*
Time evolution of strain relaxation in a model-branched H-polymer
by SANS
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Hermes,H. E.; Willner,L.; Kreitschmann,M.*; Pyckhout-Hintzen,W.;
Richter,D.; Nijenhuis,A.*
Small angle scattering investigation of linear and star trifluoroacetylated
nylon-6
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Kahle,S.; Monkenbusch,M.; Richter,D.; Ryckaert,J.P.*; Karatasos,K.*;
Koza,M.*
Segmental dynamics in polyisobutylene: Comparison between neutron
scattering and computer simulations
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Kahle,S.; Monkenbusch,M.; Richter,D.; Ryckaert,J.P.*; Karatasos,K.*;
Koza,M.*
Segmental dynamics in polyisobutylene: Comparison between neutron
scattering and computer simulations
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Kahle,S.; Monkenbusch,M.; Richter,D.; Ryckaert,J.P.*; Koza,M.*
Local dynamics in polymers
ESS European Conference
Bonn: 16.05.2002 - 17.05.2002
Kirstein,O.; Kozielewski,T.; Prager,M.
Status of the high flux backscattering spectrometer RSSM for
the FRM-II reactor in Munich
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Kirstein,O.;
Kozielewski,T.; Prager,M.; Andersen,K. H.*
A 0.9 My eV direct backscattering spectrometer for the 50Hz target
station of the European Spallation Source ESS
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Kirstein,O.; Prager,M.
Lattice dynamics and methyl group rotations of the methyl halides
CH3X, X = F, Cl, Br, I
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Kirstein,O.; Prager,M.
The dynamics of methyl halides CH3X, X = F, Cl, Br,
I
6th International Conference on Quasielastic Neutron Scattering
Potsdam: 04.09.2002 - 07.09.2002
Laurati,M.; Stellbrink,J.; Lund,R.; Willner,L.; Richter,D.
PEP-PEO diblock copolymers as 'tunable' star polymers
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Laurati,M.; Stellbrink,J.; Willner,L.; Rother,G.; Richter,D.
Frozen block copolymer micelles as 'tunable' model system for
soft colloids
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Lund,R.; Willner,L.; Monkenbusch,M.; Radulescu,A.; Richter,D.
Time resolved SANS for the determination of unimer exchange kinetics
of polymeric micelles
ESS European Conference
Bonn: 16.05.2002 - 17.05.2002
Lund,R.; Willner,L.; Monkenbusch,M.; Radulescu,A.; Richter,D.
Time resolved SANS for the determination of unimer exchange kinetics
of polymeric micelles
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Lund,R.; Willner,L.; Radulescu,A.; Monkenbusch,M.; Richter,D.
Tuning of chain exchange kinetics and structure in PEP-PEO block
copolymer micelles
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Meinnel,J.*; Hernandez,O.*; Grimm,H.; Prager,M.
Assignment of the 3 methyl tunnelling lines in a trichloromesitylene
single crystal
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Ohl,M.; Monkenbusch,M.; Richter,D.; Pappas,C.*; Lieutenant,K.*;
Mezei,F.*
The new NSE spectrometer for the SNS
American Conference of Neutron Scattering (ACNS)
Knoxville, USA: 23.06.2002 - 27.06.2002
Ohl,M.; Monkenbusch,M.; Richter,D.; Pappas,C.*; Lieutenant,K.*;
Mezei,F.*
The new NSE spectrometer for the SNS
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Pipich,V.; Schwahn,D.; Willner,L.
Complex phase behavior near the Lifshitz line in a ternary polymer
blend
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Pipich,V.; Schwahn,D.; Willner,L.
Double critical behavior of a binary A,B polymer blend mixed
with a symmetric A-B diblock copolymer near the Lifshitz Line
XII. International Conference on Small Angle Scattering
Venice, Italy: 25.08.2002 - 29.08.2002
Pipich,V.; Schwahn,D.; Willner,L.
Double critical behavior of a binary A,B polymer blend mixed
with a symmetric A-B diblock copolymer near the Lifshitz Line
Jülich Soft Matter Days
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Pipich,V.; Schwahn,D.; Willner,L.
Double critical behavior of a binary A,B polymer blend mixed
with a symmetric A-B diblock copolymer near the Lifshitz Line
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Prager,M.; Parker,S.F.*; Lechner,R.*; Desmedt,A.*
Characterization of complex molecular systems by concerted neutron
spectroscopy : trimethyl gallium
ESS European Conference
Bonn: 16.05.2002 - 17.05.2002
Radulescu,A.; Schwahn,D.; Richter,D.; Fetters,L. J.*
Co-crystallization of poly(ethylene-butene) copolymers and paraffin
molecules in decane solution investigated by SANS
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Radulescu,A.; Schwahn,D.; Richter,D.; Fetters,L.J.*
Co-crystallization of poly(ethylene-butene) copolymers and paraffin
molecules in decane solution investigated by SANS
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Radulescu,A.; Schwahn,D.; Richter,D.; Fetters,L.J.*
Co-crystallization of poly(ethylene-butene) copolymers and paraffin
molecules in decane solution investigated by SANS
XII. International Conference on Small Angle Scattering
Venice, Italy: 24.08.2002 - 29.08.2002
Rheinstädter,M.C.; Kityk,A. V.*; Klöpperpieper,A.*; Knorr,K.*
Dipolar ordering and relaxations in acetonitrile-b-hydroquinone
clathrate
SCNS Workshop 2002
Grenoble, France: 12.12.2002 - 14.12.2002
Schmidt,W.; Ohl,M.; Ruppert,H.*; Buchenau,U.
A new instrumental set-up for polarized neutron scattering experiments
ILL Workshop (SCNS)
Grenoble, France: 12.12.2002 - 14.12.2002
Schmidt,W.; Rheinstädter,M.C.; Ohl,M.; Raymond,S.*; Ruppert,H.*;
Buchenau,U.
Current activities on IN12
ESS European Conference
Bonn: 16.05.2002 - 17.05.2002
Schwahn,D.; Balz,M.*; Bartz,M.*; Fomenko,A.; Tremel,W.*
Nucleation and growth of CaCO3 minerals on biomimetic templates
studied by small angle neutron scattering
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Schwahn,D.; Balz,M.*; Bartz,M.*; Fomenko,A.; Tremel,W.*
Nucleation and growth of CaCO3 minerals on biomimetic templates
studied by small angle neutron scattering
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Schwahn,D.; Balz,M.*; Bartz,M.*; Fomenko,A.; Tremel,W.*
Nucleation and growth of CaCO3 minerals on biomimetic templates
studied by small angle neutron scattering
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Stellbrink,J.
Partial structure factors in star polymer/colloid mixtures
Liquid Matter 2002
Konstanz: 14.09.2002 - 20.09.2002
Stellbrink,J.
Partial structure factors in star polymer/colloid mixtures
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Stellbrink,J.; Allgaier,J.; Monkenbusch,M.; Richter,D.; Ehlers,G.*;
Schleger,P.*
Dynamics of ordered multi-arm star polymer solutions
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Stellbrink,J.; Allgaier,J.; Monkenbusch,M.; Richter,D.; Ehlers,G.*;
Schleger,P.*
Dynamics of ordered multi-arm star polymer solutions
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Stellbrink,J.; Allgaier,J.; Richter,D.; Moussaid,A.*; Narayanan,T.*;
Dolbnya,I.*; Bras,W.*; Poon,W.C.K.*; Pusey,P.N.*; Lindner,P.*
Partial structure factors in star polymer/colloid mixtures
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Stellbrink,J.; Allgaier,J.; Richter,D.; Moussaid,A.*; Schofield,A.B.*;
Poon,W.C.K.*; Pusey,P.N.*; Lindner,P.*
Star polymer/colloid mixtures
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Stellbrink,J.; Niu,A.; Allgaier,J.; Willner,L.; Richter,D.; Fetters,L.J.*
Real-time SANS experiments during 'living' anionic polymerization
ESS European Conference
Bonn: 15.05.2002 - 17.05.2002
Stellbrink,J.; Niu,A.; Allgaier,J.; Willner,L.; Richter,D.; Fetters,L.J.*
Real-time SANS experiments during 'living' anionic polymerization
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Wischnewski,A.; Monkenbusch,M.; Willner,L.; Richter,D.; Likhtman,A.
E.*; McLeish,T.C.B.*; Farago,B.*
Constraints of motion in polymer melts : a coherent and incoherent
neutron spin echo study
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Wischnewski,A.; Monkenbusch,M.; Willner,L.; Richter,D.; Likhtman,A.
E.*; McLeish,T.C.B.*; Farago,B.*
Constraints of motion in polymer melts : a coherent and incoherent
neutron spin echo study
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Wischnewski,A.; Monkenbusch,M.; Willner,L.; Richter,D.; Likhtman,A.
E.*; McLeish,T.C.B.*; Farago,B.*
Molecular observation of contour length fluctuations limiting
topological confinement in polymer melts
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Zamponi,M.; Monkenbusch,M.; Richter,D.; Willner,L.; Wischnewski,A.;
Likhtman,A. E.*; McLeish,T.C.B.*; Farago,B.*
NSE study on the influence of contour length fluctuations on
the reptation process
Jülich Soft Matter Days 2002
Kerkrade, Niederlande: 19.11.2002 - 22.11.2002
Zamponi,M.; Monkenbusch,M.; Richter,D.; Willner,L.; Wischnewski,A.;
Likhtman,A. E.*; McLeish,T.C.B.*; Farago,B.*
NSE study on the influence of contour length fluctuations on
the reptation process
HGF Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Zorn,R.
Jülich neutrons for Europe
ESS European Conference
Bonn: 16.05.2002 - 17.05.2002
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