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@ARTICLE{Liu:823830,
author = {Liu, Yi and Claes, Nathalie and Trepka, Bastian and Bals,
Sara and Lang, Peter R.},
title = {{A} combined 3{D} and 2{D} light scattering study on
aqueous colloidal model systems with tunable interactions},
journal = {Soft matter},
volume = {12},
number = {41},
issn = {1744-683X},
address = {London},
publisher = {Royal Soc. of Chemistry},
reportid = {FZJ-2016-06470},
pages = {8485 - 8494},
year = {2016},
abstract = {In this article we report on the synthesis and
characterization of a system of colloidal spheres suspended
in an aqueous solvent which can be refractive index-matched,
thus allowing for investigations of the particle near-wall
dynamics by evanescent wave dynamic light scattering at
concentrations up to the isotropic to ordered transition and
beyond. The particles are synthesized by copolymerization of
a fluorinated acrylic ester monomer with a
polyethylene-glycol (PEG) oligomer by surfactant free
emulsion polymerization. Static and dynamic light scattering
experiments in combination with cryo transmission electron
microscopy reveal that the particles have a core shell
structure with a significant enrichment of the PEG chains on
the particles surface. In index-matching DMSO/water
suspensions the particles arrange in an ordered phase at
volume fraction above $7\%,$ if no additional electrolyte is
present. The near-wall dynamics at low volume fraction are
quantitatively described by the combination of electrostatic
repulsion and hydrodynamic interaction between the particles
and the wall. At volume fractions close to the isotropic to
ordered transition, the near-wall dynamics are more complex
and qualitatively reminiscent of the behaviour which was
observed in hard sphere suspensions at high concentrations.},
cin = {ICS-3},
ddc = {530},
cid = {I:(DE-Juel1)ICS-3-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551) /
SOMATAI - Soft Matter at Aqueous Interfaces (316866)},
pid = {G:(DE-HGF)POF3-551 / G:(EU-Grant)316866},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000386247100004},
pubmed = {pmid:27722609},
doi = {10.1039/C6SM01376G},
url = {https://juser.fz-juelich.de/record/823830},
}