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Preparation and performance testing of sulfonated poly(phenylene oxide) based composite membranes for nanofiltration
Author(s) -
Nogami Nobuhiro,
Chowdhury Geeta,
Matsuura T.
Publication year - 2003
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.13447
Subject(s) - membrane , nanofiltration , solvent , oxide , phenylene , sulfone , dimethyl sulfoxide , materials science , electrolyte , polymer chemistry , chemical engineering , ether , permeation , chemistry , organic chemistry , polymer , composite material , biochemistry , electrode , engineering
Abstract Sulfonated brominated poly(2,6‐dimethyl‐1,4‐phenylene oxide) (SPPOBr) was synthesized by a sequence of bromination and sulfonation. A thin film of SPPOBr was coated on top of a commercial poly(ether sulfone) membrane. Pure butoxyethanol (BE) solvent or a BE/isopropyl alcohol (IPA) solvent mixture was used to dissolve SPPOBr in the coating process. The thin film composite membranes so prepared were then tested for the separation of carbohydrate and electrolyte solutes. We found that the flux and the carbohydrate separation both increased significantly with increasing IPA content in the solvent mixture. However, the separation of electrolyte solutes did not change significantly. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 2624–2628, 2004