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A study on the preparation and properties of the heterogeneous cation‐exchange membranes of sulfonated polystyrene/divinyl benzene on an acetal base
Author(s) -
LamLeung Suei Y.,
Li Huan R.
Publication year - 1995
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1995.070571113
Subject(s) - membrane , polystyrene , acetal , benzene , polymer chemistry , materials science , chemical engineering , ion exchange resin , chemistry , polymer , organic chemistry , biochemistry , engineering
The heterogeneous acetal‐based membranes containing 50, 60, 70, 80, and 90% (w/w) of the sulfonated polystyrene crosslinked with 7% divinyl benzene were fabricated and studied. In addition, the heterogeneous acetal‐based membranes of 85% (w/w) sulfonated polystyrene crosslinked with 1, 4, and 7% divinyl benzene were also prepared and studied. The gel water content, dimensional stability, ion‐exchange capacity, area and specific ohmic resistance, permselectivity, and rate of ion exchange of the acetal‐based membranes were determined. The sulfonated polystyrene crosslinked with 7% divinyl benzene resin was found to be the better material for preparing the acetal‐based membrane with comparable good characteristics. A commercially available heterogeneous membrane (Shanghai Chemicals, 3361) of dry‐molding sulfonated polystyrene–divinyl benzene resin was used as the reference membrane for the present investigation. © 1995 John Wiley & Sons, Inc.