Comparative investigations of ion-exchange membranes

被引：97

作者：

Koter, S ^{[1
]}

Piotrowski, P

Kerres, J

机构：

[1] Nicholas Copernicus Univ, Fac Chem, PL-87100 Torun, Poland

[2] Univ Stuttgart, Inst Chem Engn, Stuttgart, Germany

来源：

JOURNAL OF MEMBRANE SCIENCE | 1999年 / 153卷 / 01期

关键词：

cation-exchange membrane; sulfonated-crosslinked polysulfone; swelling; conductivity; transport number; diffusion;

D O I：

10.1016/S0376-7388(98)00242-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The equilibrium and transport properties (conductivity, transport number, diffusion) of crosslinked ionomer membranes based on sulfinated and sulfonated PSU in aqueous solutions of HCl, NaCl and KCl have been investigated and compared with a Nafion 117 membrane. It has been found that these membranes are more compact and their conducting paths are of smaller dimension than that of the Nafion 117. The influence of length of crosslinking chain, changing from -(CH2)(4)- to -(CH2)(12)-, is particularly indicated by the diffusion coefficients; the conductivity and transport numbers of counterions are influenced only slightly. Practically no dependence of this effect on the transport number of H+ has been found. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：83 / 90

页数：8