Monte Carlo study of adsorption of a polyelectrolyte onto charged surfaces

被引:141
作者
Kong, CY [1 ]
Muthukumar, M
机构
[1] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA
[2] Univ Massachusetts, Mat Res & Engn Ctr, Amherst, MA 01003 USA
关键词
D O I
10.1063/1.476703
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
By using off-lattice Monte Carlo simulations, the conditions of adsorption of a uniformly charged polyelectrolyte onto oppositely charged planar and spherical surfaces have been investigated. These conditions are functions of the strength of the electrostatic interaction, Debye screening length, chain length, and charge density and curvature of the surface. The adsorption can be tuned by using any one of these parameters. The chain's conformation, adsorption energy and thickness of the adsorbed polymer are obtained under different adsorption conditions. We find the Monte Carlo simulation data to be in good agreement with the theoretical prediction derived previously by using the assumptions of ground state dominance and separability. (C) 1998 American Institute of Physics.
引用
收藏
页码:1522 / 1527
页数:6
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