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Non-linear elasticity effects and stratification in brushes of branched polyelectrolytes.
- Source :
-
Journal of Chemical Physics . 12/7/2019, Vol. 151 Issue 21, p1-9. 9p. 1 Diagram, 8 Graphs. - Publication Year :
- 2019
-
Abstract
- Brushes formed by arm-tethered starlike polyelectrolytes may exhibit internal segregation into weakly and strongly extended populations (stratified two-layer structure) when strong ionic intermolecular repulsions induce stretching of the tethers up to the limit of their extensibility. We propose an approximate Poisson-Boltzmann theory for analysis of the structure of the stratified brush and compare it with results of numerical self-consistent field modeling. Both analytical and numerical models point to the formation of a narrow cloud of counterions (internal double electrical layer) localized inside a stratified brush at the boundary between the layers. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 151
- Issue :
- 21
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 140275576
- Full Text :
- https://doi.org/10.1063/1.5130580