Interaction of surfactants with ion-exchange membranes

被引:25
作者
Kononenko, NA [1 ]
Berezina, NP [1 ]
Loza, NV [1 ]
机构
[1] Kuban State Univ, Dept Chem Phys, Krasnodar 350040, Russia
关键词
ion-exchange membrane; surfactant; water content; electroconductivity; percolation phenomena;
D O I
10.1016/j.colsurfa.2004.01.014
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
In the present paper, we have compared the measuring results of the water content and electrotransport properties of the heterogeneous and perfluorinated homogeneous ion-exchange membranes with the variable saturation degree by surface-active counter-ions. Pore-size distribution functions for the heterogeneous membranes are investigated and the specific internal surface area is calculated. The key role of the surfactant-adsorption on the internal and external boundaries of the ion-exchange membranes is revealed. The correlation between percolation phenomena in the perfluorinated membrane with tetrabutylammonium ions and effects of the system transition to overlimiting state is found. (C) 2004 Elsevier B.V. All rights reserved.
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页码:59 / 64
页数:6