% 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{Maccarrone:810972,
author = {Maccarrone, Simona and Ghavami, Ali and Holderer, Olaf and
Scherzinger, Christine and Lindner, Peter and Richtering,
Walter and Richter, Dieter and Winkler, Roland G.},
title = {{D}ynamic {S}tructure {F}actor of {C}ore–{S}hell
{M}icrogels: {A} {N}eutron {S}cattering and {M}esoscale
{H}ydrodynamic {S}imulation {S}tudy},
journal = {Macromolecules},
volume = {49},
number = {9},
issn = {1520-5835},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2016-03527},
pages = {3608 - 3618},
year = {2016},
abstract = {Polymeric microgels with core–shell morphology provide
promising properties for many applications such as
controlled uptake and release of guest nanoparticles. In
this work we investigated how the structure and dynamics of
the core and the shell in the microgel are coupled using
both experimental and computer simulation approaches. The
studied core–shell model systems which consist of a
collapsed core and a swollen shell (CCSS) and a swollen core
and collapsed shell (SCCS) show a different behavior in both
structure and dynamics. The intermediate scattering profiles
obtained from neutron spin echo (NSE) spectroscopy of CCSS
microgels show an initial fast decay similar to that of bare
swollen microgels followed by a slow decay similar to that
of a purely collapsed microgel. This is also reflected in
mesoscale hydrodynamic simulations using the multiparticle
collision dynamics method. In the case of CCSS microgels,
the decay rate of the intermediate scattering functions
shows a crossover from collective diffusive dynamics at low
wavenumbers to a Zimm-type dynamics at larger wavenumbers.
This is similar to the behavior of a purely swollen
microgels. In the case of SCCS microgels, the intermediate
scattering profiles from experiment and simulations show a
slow dynamics at small as well as large wavenumbers.
Studying the dynamics of the individual compartments in the
simulated structures suggests that the slower dynamics in
SCCS microgels can be attributed to the collective motion of
collapsed and aggregated shell parts which form in the
periphery of the microgel. Additionally, in both CCSS and
SCCS microgels, a slowdown of the dynamics is observed in
the swollen compartment compared to the bare swollen
microgel, which is a result of the interplay between core
and shell compartments.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / MLZ / Neutronenstreuung ; JCNS-1
/ ICS-2 / IAS-2},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)ICS-2-20110106 /
I:(DE-Juel1)IAS-2-20090406},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551) /
6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623) / 6215 - Soft Matter,
Health and Life Sciences (POF3-621) / IHRS-BioSoft -
International Helmholtz Research School of Biophysics and
Soft Matter (IHRS-BioSoft-20061101)},
pid = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G15 /
G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6215 /
G:(DE-Juel1)IHRS-BioSoft-20061101},
experiment = {EXP:(DE-MLZ)J-NSE-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000375809700043},
doi = {10.1021/acs.macromol.6b00232},
url = {https://juser.fz-juelich.de/record/810972},
}