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@ARTICLE{Gaudino:828071,
author = {Gaudino, D. and Pasquino, R. and Kriegs, H. and Szekely, N.
and Pyckhout-Hintzen, W. and Lettinga, M. P. and Grizzuti,
N.},
title = {{E}ffect of the salt-induced micellar microstructure on the
nonlinear shear flow behavior of ionic cetylpyridinium
chloride surfactant solutions},
journal = {Physical review / E},
volume = {95},
number = {3},
issn = {2470-0045},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2017-02076},
pages = {032603},
year = {2017},
abstract = {The shear flow dynamics of linear and branched wormlike
micellar systems based on cetylpyridinium chloride and
sodium salicylate in brine solution is investigated through
rheometric and scattering techniques. In particular, the
flow and the structural flow response are explored via
velocimetry measurements and rheological and rheometric
small-angle neutron scattering (SANS) experiments,
respectively. Although all micellar solutions display a
similar shear thinning behavior in the nonlinear regime, the
experimental results show that shear banding sets in only
when the micelle contour length ¯¯¯L is sufficiently
long, independent of the nature of the micellar connections
(either linear or branched micelles). Using rheometric SANS,
we observe that the shear banding systems both show very
similar orientational ordering as a function of Weissenberg
number, while the short branched micelles manifest an
unexpected increase of ordering at very low Weissenberg
numbers. This suggests the presence of an additional
flow-induced relaxation process that is peculiar for
branched systems.},
cin = {ICS-1 / Neutronenstreuung ; JCNS-1 / JCNS (München) ;
Jülich Centre for Neutron Science JCNS (München) ;
JCNS-FRM-II / ICS-3},
ddc = {530},
cid = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106 /
I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)ICS-3-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551) /
6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
pid = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
G:(DE-HGF)POF3-6215},
experiment = {EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000396039200014},
doi = {10.1103/PhysRevE.95.032603},
url = {https://juser.fz-juelich.de/record/828071},
}