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Simplex membranes of sulphoethylcellulose and poly(diallydimethylammonium chloride) for the pervaporation of water–alcohol mixtures
Author(s) -
Knop S.,
Thielking H.,
Kulicke W.M.
Publication year - 2000
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 - 10.1002/1097-4628(20000929)77:14<3169::aid-app180>3.0.co;2-d
Subject(s) - pervaporation , membrane , polyelectrolyte , aqueous solution , chemical engineering , polymer chemistry , swelling , rheology , chloride , cellulose , chemistry , materials science , organic chemistry , polymer , permeation , composite material , biochemistry , engineering
Polyelectrolyte complex membranes were prepared by simultaneous interfacial reaction of aqueous solutions of two oppositely charged polyions. The cellulose derivative sulphoethylcellulose (SEC) was used as the polyanionic component and poly(diallyldimethylammonium chloride) as the polycationic component. Characterization of molecular parameters of SEC were determined by size exclusion chromatography coupled with light scattering, viscosimetry, and rheology, and then correlated with membrane properties. Pervaporation investigations together with measurements of swelling behavior and network structure indicate that the membranes can be successfully used for dehydration of alcoholic solvents since they show excellent separation properties. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 3169–3177, 2000