Ionic strength dependence of polyelectrolyte brush thickness
- 13 July 2012
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Soft Matter
- Vol. 8 (36), 9376-9383
- https://doi.org/10.1039/c2sm25863c
Abstract
Intramolecular repulsion between charged monomers imposes intrinsic tension in a polyion, modifies its elasticity, and changes the dependence of polyelectrolyte brush thickness on salt concentration. We demonstrate that intrinsic polyion tension gives rise to a plateau of brush thickness in the middle of a salt dominated regime and to a subsequent steeper brush contraction with increasing salt concentration.Keywords
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