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@INPROCEEDINGS{Lettinga:826114,
author = {Lettinga, M.P.},
title = {{P}robing microstructural origin of complex flow behaviour},
reportid = {FZJ-2017-00374},
year = {2016},
abstract = {Soft matter materials are classically characterized by
rheological experiments, which probe the mechanical response
to shear flow. Knowledge of the microscopic structure in
flow is crucial to understand, predict, and tune flow
behaviour and therefore the macroscopic rheological response
of complex fluids. A simple example of such fluids are
dispersions of stiff particles, as alignment of the
particles will cause a huge drop in the viscosity of the
fluid. This ‘shear thinning’ can cause flow to be
unstable, but it is yet unclear how this highly non-linear
behaviour is linked to microscopic features such as the
stiffness and dimensions of the particles. In this talk I
will present in situ time-resolved scattering [1-4] and
microscopy experiments [5] on a variety of supramolecular
polymers such as wormlike micelles, grafted-DNA, F-actin,
and rod-like viruses. I will show how this (3-D) structural
information indeed discloses new mechanisms underlying
non-linear macroscopic responses as well as the need of
improvements in theory.},
month = {Oct},
date = {2016-10-31},
organization = {Group seminar at the Department of
physics, TU Eindhoven (Netherlands), 31
Oct 2016},
subtyp = {Invited},
cin = {ICS-3},
cid = {I:(DE-Juel1)ICS-3-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551)},
pid = {G:(DE-HGF)POF3-551},
typ = {PUB:(DE-HGF)31},
url = {https://juser.fz-juelich.de/record/826114},
}