FORCES BETWEEN POLYELECTROLYTE COATED SURFACES IN THE PRESENCE OF ELECTROLYTE

被引：18

作者：

WOODWARD, CE ^{[1
]}

AKESSON, T ^{[1
]}

JONSSON, B ^{[1
]}

机构：

[1] LTH,CTR CHEM,DEPT PHYS CHEM 2,S-22100 LUND,SWEDEN

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 101卷 / 03期

关键词：

D O I：

10.1063/1.467630

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：

The interaction between charged surfaces bearing terminally attached polyelectrolyte chains is investigated using Monte Carlo computer simulations and a mean-field theory. In particular we focus on the role played by the addition of a simple electrolyte component. It is found that the force between the surfaces increases with increasing electrolyte concentration because of a repulsive osmotic pressure contribution due to the small ions, while the attractive bridging component is insensitive to added salt. Considering the approximate nature of the mean-field (polyelectrolyte Poisson-Boltzmann) theory it compares well with the computer simulations.

引用

页码：2569 / 2576

页数：8

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