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@ARTICLE{Goossen:256351,
author = {Goossen, Sebastian and Krutyeva, Margarita and Sharp,
Melissa and Feoktystov, Artem and Allgaier, J. and
Pyckhout-Hintzen, Wim and Wischnewski, Andreas and Richter,
Dieter},
title = {{S}ensing {P}olymer {C}hain {D}ynamics through {R}ing
{T}opology: {A} {N}eutron {S}pin {E}cho {S}tudy},
journal = {Physical review letters},
volume = {115},
number = {14},
issn = {1079-7114},
address = {College Park, Md.},
publisher = {APS},
reportid = {FZJ-2015-06310},
pages = {148302},
year = {2015},
abstract = {Using neutron spin echo spectroscopy, we show that the
segmental dynamics of polymer rings immersed in linear
chains is completely controlled by the host. This transforms
rings into ideal probes for studying the entanglement
dynamics of the embedding matrix. As a consequence of the
unique ring topology, in long chain matrices the
entanglement spacing is directly revealed, unaffected by
local reptation of the host molecules beyond this distance.
In shorter entangled matrices, where in the time frame of
the experiment secondary effects such as contour length
fluctuations or constraint release could play a role, the
ring motion reveals that the contour length fluctuation is
weaker than assumed in state-of-the-art rheology and that
the constraint release is negligible. We expect that rings,
as topological probes, will also grant direct access to
molecular aspects of polymer motion which have been
inaccessible until now within chains adhering to more
complex architectures.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / ICS-1 / Neutronenstreuung ;
JCNS-1},
ddc = {550},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551) /
6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
pid = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
G:(DE-HGF)POF3-6215},
experiment = {EXP:(DE-MLZ)KWS1-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000361815100010},
pubmed = {pmid:26551826},
doi = {10.1103/PhysRevLett.115.148302},
url = {https://juser.fz-juelich.de/record/256351},
}