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@ARTICLE{Sharma:908552,
author = {Sharma, Aakash and Kruteva, Margarita and Zamponi, Michaela
and Ehlert, Sascha and Richter, Dieter and Förster,
Stephan},
title = {{I}nfluence of molecular weight on the distribution of
segmental relaxation in polymer grafted nanoparticles},
journal = {Physical review materials},
volume = {6},
number = {1},
issn = {2475-9953},
address = {College Park, MD},
publisher = {APS},
reportid = {FZJ-2022-02676},
pages = {L012601},
year = {2022},
abstract = {The segmental dynamics of one-component nanocomposites
(OCNC) is significantly influenced by the molecular weight
(Mw) of the grafted polymer. Neutron backscattering shows
that compared to the neat polymer the OCNCs exhibit a shift
from slower segmental dynamics at low Mw to faster dynamics
at high Mw. We model the local relaxation as distribution of
exponential diffusers. This approach reveals the presence of
fast and slow segments in both OCNCs. However, their
fractional contribution varies with Mw leading to different
average relaxation times. Our results present important
insights into the origin of segmental mobility in OCNC and
address the inconsistencies in different literature
reports.},
cin = {JCNS-FRM-II / MLZ / JCNS-1 / JCNS-2 / JCNS-4},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-2-20110106 /
I:(DE-Juel1)JCNS-4-20201012},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4) / 632 - Materials – Quantum, Complex and
Functional Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)SPHERES-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000753878000002},
doi = {10.1103/PhysRevMaterials.6.L012601},
url = {https://juser.fz-juelich.de/record/908552},
}