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@ARTICLE{Buvalaia:1014223,
author = {Buvalaia, Ekaterina and Kruteva, Margarita and Hoffmann,
Ingo and Radulescu, Aurel and Förster, Stephan and Biehl,
Ralf},
title = {{I}nterchain {H}ydrodynamic {I}nteraction and {I}nternal
{F}riction of {P}olyelectrolytes},
journal = {ACS Macro Letters},
volume = {12},
number = {9},
issn = {2161-1653},
address = {Washington, DC},
publisher = {ACS},
reportid = {FZJ-2023-03207},
pages = {1218 - 1223},
year = {2023},
abstract = {Polyelectrolytes (PE) are polymeric macromolecules in
aqueous solutions characterized by their chain topology and
intrinsic charge in a neutralizing fluid. Structure and
dynamics are related to several characteristic screening
length scales determined by electrostatic, excluded volume,
and hydrodynamic interactions. We examine PE dynamics in
dilute to semidilute conditions using dynamic light
scattering, neutron spinecho spectroscopy, and pulse field
gradient NMR spectroscopy. We connect macroscopic diffusion
to segmental chain dynamics, revealing a decoupling of local
chain dynamics from interchain interactions. Collective
diffusion is described within a colloidal picture, including
electrostatic and hydrodynamic interactions. Chain dynamics
is characterized by the classical Zimm model of a neutral
chain retarded by internal friction. We observe that
hydrodynamic interactions are not fully screened between
chains and that the internal friction within the chain
increases with an increase in ion condensation on the
chain.},
cin = {JCNS-1 / MLZ / IBI-8 / JCNS-FRM-II / JCNS-4},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-1-20110106 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)IBI-8-20200312 /
I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-4-20201012},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4) / 632 - Materials – Quantum, Complex and
Functional Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {37624592},
UT = {WOS:001190534800001},
doi = {10.1021/acsmacrolett.3c00409},
url = {https://juser.fz-juelich.de/record/1014223},
}