% 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:172213,
author = {Maccarrone, Simona and Scherzinger, Christine and Holderer,
Olaf and Lindner, Peter and Sharp, Melissa and Richtering,
Walter and Richter, Dieter},
title = {{C}ononsolvency {E}ffects on the {S}tructure and {D}ynamics
of {M}icrogels},
journal = {Macromolecules},
volume = {47},
number = {17},
issn = {1520-5835},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2014-05702},
pages = {5982 - 5988},
year = {2014},
abstract = {Sensitive microgels are submicrometer sized, cross-linked
polymer particles with a unique swelling behavior changing
in response to surrounding conditions like temperature, pH
and ionic strength. In this study we influence the swelling
capability of thermosensitive microgels microgel by the
composition of the solvent (cononsolvency). In particular,
we investigate the effects on the structure and dynamics of
poly(N-isopropylacrylamide) (PNIPAM) and
poly(N,N-diethylacrylamide) (PDEAAM) microgels with
different degree of swelling in MeOD/D2O solvent mixture at
10 °C using a combination of small angle neutron scattering
(SANS) and neutron spin echo (NSE) spectroscopy at
nanoseconds scales in the range of several nanometers. The
structural characterization including size and density
profiles was determined by fitting SANS data. The dynamical
behavior of partially collapsed and swollen microgels is
comprehensively described within the theory of semidilute
polymers in solutions where hydrodynamic interactions are
dominant. The partially collapsed PNIPAM microgel particles
are not solid diffusing objects but they have relevant
contributions from internal motions. Thus, Zimm segmental
dynamics can be detected with elevated apparent viscosity.
The swollen PDEAAM microgel particles have a faster internal
dynamics compared to the partially collapsed PNIPAM. It can
also be explained by Zimm-like relaxations with relatively
high apparent viscosity and an additional diffusive
contribution coming from the cross-linkers.},
cin = {Neutronenstreuung ; JCNS-1 / JCNS (München) ; Jülich
Centre for Neutron Science JCNS (München) ; JCNS-FRM-II /
ICS-1},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-1-20110106 /
I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)ICS-1-20110106},
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},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000341542900013},
doi = {10.1021/ma500954t},
url = {https://juser.fz-juelich.de/record/172213},
}