Ion exchange membrane based on block copolymers. Part III: preparation of cation exchange membrane

Authors
Hwang, GJ Ohya, H Nagai, T
Citation
Gj. Hwang et al., Ion exchange membrane based on block copolymers. Part III: preparation of cation exchange membrane, J MEMBR SCI, 156(1), 1999, pp. 61-65
Citations number
16
Categorie Soggetti
Chemistry,"Chemical Engineering
Journal title
JOURNAL OF MEMBRANE SCIENCE
ISSN journal
03767388 → ACNP
Volume
156
Issue
1
Year of publication
1999
Pages
61 - 65
Database
ISI
SICI code
0376-7388(19990424)156:1<61:IEMBOB>2.0.ZU;2-V
Abstract
A new type of ion exchange membrane was investigated for the purpose of app lying electrodialysis process. The cation exchange membrane was prepared by sulfonation of the home-made block copolymers of polysulfone (PSf) and pol yphenylenesulfidesulfone (PPSS). The lowest measured membrane area resistan ce, equilibrated in 2 M (mol/dm(3)) KCI aqueous solution, was 2.5 Omega cm( 2). The cation exchange capacity reached up to 1.9 meq/(g-dry-resin), and t he transport number of K+ was in the 0.77-0.87 range. (C) 1999 Elsevier Sci ence B.V. All rights reserved.