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@ARTICLE{Lang:868385,
author = {Lang, Christian and Kohlbrecher, Joachim and Porcar, Lionel
and Radulescu, Aurel and Sellinghoff, Karin and Dhont, Jan
Karel George and Lettinga, Minne Paul},
title = {{M}icrostructural {U}nderstanding of the {L}ength- and
{S}tiffness-{D}ependent {S}hear {T}hinning in {S}emidilute
{C}olloidal {R}ods},
journal = {Macromolecules},
volume = {52},
number = {24},
issn = {1520-5835},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2020-00001},
pages = {9604 - 9612},
year = {2019},
abstract = {Complex fluids containing low concentrations of slender
colloidal rods can display a high viscosity, while little
flow is needed to thin the fluid. This feature makes slender
rods essential constituents in industrial applications and
biology. Though this behavior strongly depends on the
rod-length, so far no direct relation could be identified.
We employ a library of filamentous viruses to study the
effect of rod size and flexibility on the zero-shear
viscosity and shear-thinning behavior. Rheology and
small-angle neutron scattering data are compared to a
revised version of the standard theory for ideally stiff
rods, which incorporates a complete shear-induced dilation
of the confinement. While the earlier predicted
length-independent prefactor of the restricted rotational
diffusion coefficient is confirmed by varying the length and
concentration of the rods, the revised theory correctly
predicts the shear-thinning behavior as well as the
underlying orientational order. These results can be
directly applied to understand the manifold systems based on
rodlike colloids and design new materials.},
cin = {JCNS-FRM-II / JCNS-1 / MLZ / ICS-3},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)ICS-3-20110106},
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)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000505629900020},
doi = {10.1021/acs.macromol.9b01592},
url = {https://juser.fz-juelich.de/record/868385},
}