| Autor: |
Lebedeva, Inna O., Shavykin, Oleg V., Neelov, Igor M., Zhulina, Ekaterina B., Leermakers, Frans A. M., Borisov, Oleg V. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 12/7/2019, Vol. 151 Issue 21, p1-9, 9p, 1 Diagram, 8 Graphs |
| Abstrakt: |
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] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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