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Semipermeable membranes of cellulose acetate for desalination in the process of reverse osmosis. II. Parameters affecting membrane gel structure
Author(s) -
Kesting Robert E.,
Barsh Max K.,
Vincent Arthur L.
Publication year - 1965
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.1965.070090521
Subject(s) - desalination , membrane , reverse osmosis , cellulose acetate , chemical engineering , semipermeable membrane , cellulose , materials science , swelling , osmosis , polymer , chemistry , chromatography , polymer chemistry , organic chemistry , biochemistry , engineering
A quantitative study has been made of the effects on the membrane gel structure of parameters whose significance with respect to desalination performance had previously been empirically established. The composition of the polymer solutions, the fabrication temperatures, and the pressure employed during desalination are shown to be related, in that they all influence the swelling behavior of the gel structure. The relationship which has been found between the water content and the rate of water transport across semipermeable membranes of cellulose acetate is explained on the basis of a solution transport mechanism.