Polyelectrolyte Adsorption on Charged Substrate
Abstract
The behavior of a polyelectrolyte adsorbed on a charged substrate of high-dielectric constant is studied by both Monte-Carlo simulation and analytical methods. It is found that in a low enough ionic strength medium, the adsorption transition is first-order where the substrate surface charge still keeps repulsive. The monomer density at the adsorbed surface is identified as the order parameter. It follows a linear relation with substrate surface charge density because of the electrostatic boundary condition at the charged surface. During the transition, the adsorption layer thickness remains finite. A new scaling law for the layer thickness is derived and verified by simulation.
Cite
@article{arxiv.cond-mat/0312221,
title = {Polyelectrolyte Adsorption on Charged Substrate},
author = {Chi-Ho Cheng and Pik-Yin Lai},
journal= {arXiv preprint arXiv:cond-mat/0312221},
year = {2007}
}
Comments
Proceedings of the 3rd Symposium on Slow Dynamics in Complex Systems, 3-8 November 2003, Sendai, Japan