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@ARTICLE{Scotti:861897,
author = {Scotti, A. and Bochenek, S. and Brugnoni, M. and
Fernandez-Rodriguez, M. A. and Schulte, M. F. and Houston,
J. E. and Gelissen, A. P. H. and Potemkin, I. I. and Isa, L.
and Richtering, W.},
title = {{E}xploring the colloid-to-polymer transition for ultra-low
crosslinked microgels from three to two dimensions},
journal = {Nature Communications},
volume = {10},
number = {1},
issn = {2041-1723},
address = {[London]},
publisher = {Nature Publishing Group UK},
reportid = {FZJ-2019-02318},
pages = {1418},
year = {2019},
abstract = {Microgels are solvent-swollen nano- and microparticles that
show prevalent colloidal-like behavior despite their
polymeric nature. Here we study ultra-low crosslinked
poly(N-isopropylacrylamide) microgels (ULC), which can
behave like colloids or flexible polymers depending on
dimensionality, compression or other external stimuli.
Small-angle neutron scattering shows that the structure of
the ULC microgels in bulk aqueous solution is characterized
by a density profile that decays smoothly from the center to
a fuzzy surface. Their phase behavior and rheological
properties are those of soft colloids. However, when these
microgels are confined at an oil-water interface, their
behavior resembles that of flexible macromolecules. Once
monolayers of ultra-low crosslinked microgels are
compressed, deposited on solid substrate and studied with
atomic-force microscopy, a concentration-dependent
topography is observed. Depending on the compression, these
microgels can behave as flexible polymers, covering the
substrate with a uniform film, or as colloidal microgels
leading to a monolayer of particles.},
cin = {JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
ddc = {500},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6G15 - FRM II / MLZ (POF3-6G15)},
pid = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
experiment = {EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30926786},
UT = {WOS:000462721900017},
doi = {10.1038/s41467-019-09227-5},
url = {https://juser.fz-juelich.de/record/861897},
}