Non-linear elasticity effects and stratification in brushes of branched polyelectrolytes
Non-linear elasticity effects and stratification in brushes of branched polyelectrolytes
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 modelling. Both analytical and numerical models point to formation of a narrow cloud of counterions (internal double electrical layer) localized inside stratified brush at the boundary between the layers.
Inna O. Lebedeva、Oleg V. Shavykin、Igor M. Neelov、Ekaterina B. Zhulina、Frans A. M. Leermakers、Oleg V. Borisov
Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, CNRS UPPASt.Petersburg National University of Informational Technologies Mechanics and OpticsSt.Petersburg National University of Informational Technologies Mechanics and OpticsSt.Petersburg National University of Informational Technologies Mechanics and OpticsPhysical Chemistry and Soft Matter Wageningen UniversityInstitut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, CNRS UPPA
生物物理学
Inna O. Lebedeva,Oleg V. Shavykin,Igor M. Neelov,Ekaterina B. Zhulina,Frans A. M. Leermakers,Oleg V. Borisov.Non-linear elasticity effects and stratification in brushes of branched polyelectrolytes[EB/OL].(2025-04-03)[2025-04-26].https://arxiv.org/abs/2504.02783.点此复制
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