% 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{Richter:867523,
author = {Richter, Dieter and Kruteva, Margarita},
title = {{P}olymer dynamics under confinement},
journal = {Soft matter},
volume = {15},
number = {37},
issn = {1744-6848},
address = {London},
publisher = {Royal Soc. of Chemistry},
reportid = {FZJ-2019-06146},
pages = {7316 - 7349},
year = {2019},
abstract = {We review recent neutron scattering work and related
results from simulation and complementary techniques
focusing on the microscopic dynamics of polymers under
confinement. Confinement is either realized in model porous
materials or in polymer nanocomposites (PNC). The dynamics
of such confined polymers is affected on the local segmental
level, the level of entanglements as well as on global
levels: (i) at the segmental level the interaction with the
surface is of key importance. At locally repulsive surfaces
compared to the bulk the segmental dynamics is not altered.
Attractive surfaces slow down the segmental dynamics in
their neighborhood but do not give rise to dead, glassy
layers. (ii) Confinement generally has little effect on the
inter-chain entanglements: both for weakly as well as for
marginally confined polymers the reptation tube size is not
changed. Only for strongly confined polymers disentanglement
takes place. Similarly, in PNC at higher NP loading
disentanglement phenomena are observed; in addition, at very
high loading a transition from polymer caused topological
constraints to purely geometrical constraints is observed.
(iii) On the more global scale NSE experiments revealed
important information on the nature of the interphase
between adsorbed layer and bulk polymer. (iv) Polymer grafts
at NP mutually confine each other, an effect that is most
pronounced for one component NP. (v) Global diffusion of
entangled polymers both in weakly and strongly attractive
PNC is governed by the ratio of bottle-neck to chain size
that characterizes the ‘entropic barrier’ for global
diffusion.},
cin = {JCNS-FRM-II / MLZ / JCNS-1 / JCNS-2},
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},
pnm = {6215 - Soft Matter, Health and Life Sciences (POF3-621) /
6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-6215 / G:(DE-HGF)POF3-6G15 /
G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)J-NSE-20140101 / EXP:(DE-MLZ)KWS1-20140101 /
EXP:(DE-Juel1)SNS-NSE-20150203},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31513221},
UT = {WOS:000487804800001},
doi = {10.1039/C9SM01141B},
url = {https://juser.fz-juelich.de/record/867523},
}