% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Brs:151795,
author = {Brás, Ana Rita Elias and Goossen, Sebastian and Krutyeva,
Margarita and Radulescu, Aurel and Farago, Bela and
Allgaier, J. and Pyckhout-Hintzen, Wim and Wischnewski,
Andreas and Richter, Dieter},
title = {{C}ompact structure and non-{G}aussian {D}ynamics of ring
polymer melts},
journal = {Soft matter},
volume = {10},
number = {20},
issn = {1744-6848},
address = {Cambridge},
publisher = {Royal Society of Chemistry (RSC)},
reportid = {FZJ-2014-01674},
pages = {3649-3655},
year = {2014},
abstract = {We present a neutron scattering analysis of the structure
and dynamics of PEO polymer rings with a molecular weight
2.5 times higher than the entanglement mass. The melt
structure was found to be more compact than a Gaussian model
would suggest. With increasing time the center of mass
(c.o.m.) diffusion undergoes a transition from sub-diffusive
to diffusive behavior. The transition time agrees well with
the decorrelation time predicted by a mode coupling
approach. As a novel feature well pronounced non-Gaussian
behavior of the c.o.m. diffusion was found that shows
surprising analogies to the cage effect known from glassy
systems. Finally, the longest wavelength Rouse modes are
suppressed possibly as a consequence of an onset of lattice
animal features as hypothesized in theoretical approaches},
cin = {ICS-1 / Neutronenstreuung ; JCNS-1 / JCNS (München) ;
Jülich Centre for Neutron Science JCNS (München) ;
JCNS-FRM-II},
ddc = {530},
cid = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106 /
I:(DE-Juel1)JCNS-FRM-II-20110218},
pnm = {451 - Soft Matter Composites (POF2-451) / 54G - JCNS
(POF2-54G24)},
pid = {G:(DE-HGF)POF2-451 / G:(DE-HGF)POF2-54G24},
experiment = {EXP:(DE-MLZ)J-NSE-20140101 / EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000335927400013},
doi = {10.1039/c3sm52717d},
url = {https://juser.fz-juelich.de/record/151795},
}