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@ARTICLE{Papagiannopoulos:819433,
author = {Papagiannopoulos, Aristeidis and Sotiropoulos, Konstantinos
and Radulescu, Aurel},
title = {{S}cattering investigation of multiscale organization in
aqueous solutions of native xanthan},
journal = {Carbohydrate polymers},
volume = {153},
issn = {0144-8617},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2016-05097},
pages = {196 - 202},
year = {2016},
abstract = {The hierarchical morphology of xanthan solutions is
analyzed by light and neutron scattering in a broad range of
concentrations in order to connect their morphology to their
well-documented dynamic properties. Static light scattering
inside the semidilute regime is dominated by the form factor
of individual xanthan chains while at higher concentrations
chain interconnections appear to modify the low wave vector
scattering. Dynamic light scattering reveals the
self-similar nature of the solutions caused by interchain
associations as intensity autocorrelation functions present
power-law behaviour. Small angle neutron scattering is
dominated by the fractal scattering from the formed network
at intermediate length scales. At small length scales the
rigid structure of xanthan is revealed and the molecular
weight per unit length is extracted. No detectable
morphological alterations for shear rates up to 1000 rad/s
are observed revealing that the shear thinning behaviour of
xanthan is related to the disruption of chain-chain
associations.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
ddc = {540},
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-588)4443767-5 / EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000382317200023},
doi = {10.1016/j.carbpol.2016.07.104},
url = {https://juser.fz-juelich.de/record/819433},
}