Comparative investigations of ion-exchange membranes |
| |
| Affiliation: | 1. Faculty of Chemistry, N. Copernicus University, 7 Gagarin Street, PL-87100 ToruńPoland;2. Institute for Chemical Engineering, University of StuttgartStuttgartGermany;1. Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, United States;2. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, United States;1. IEC Group, Departament d’Enginyeria Quimica i Nuclear, Universitat Politècnica de València, Camí de Vera s/n, 46022, València, P.O. Box 22012, E-46071, Spain;2. Department of Materials and Metallurgical Engineering, Universidade de São Paulo, Av. Prof. Mello Moraes 2463, 05508-030 São Paulo, SP, Brazil;3. Department of Materials Engineering, Universidade do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91509-900 Porto Alegre, RS, Brazil;1. Institut de Chimie et des Matériaux Paris-Est (ICMPE) UMR 7182 CNRS – Université Paris-Est, 2 Rue Henri Dunant, 94320 Thiais, France;2. Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
