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Ionically crosslinked poly(acrylic acid) membranes. IV. Composite reverse osmosis membranes
Author(s) -
Huang R. Y. M.,
Gao C. J.,
Kim J. J.
Publication year - 1983
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.1983.070281006
Subject(s) - membrane , polysulfone , thin film composite membrane , chemical engineering , reverse osmosis , acrylic acid , materials science , polymer chemistry , desalination , polyelectrolyte , cellulose acetate , chemistry , composite material , polymer , copolymer , biochemistry , engineering
Composite reverse osmosis membranes of ionically crosslinked poly(acrylic acid) (PAA) have been prepared. The process consists of coating a porous polysulfone membrane with a thin layer of dilute solution of PAA, drying the thin liquid layer, and ionically crosslinking the PAA in solutions of different salts. The influence of some important preparation parameters on the properties of these membranes was investigated. It was found that all these membranes possessed ion exchange properties and could be ion exchanged; some of them have been found to be suitable for the desalination of low concentration salt solutions. By comparison to cellulose acetate (CA) membranes, higher rejection of phenols may be an interesting property of these membranes.