Journal
SEPARATION SCIENCE AND TECHNOLOGY
Volume 44, Issue 12, Pages 2827-2839Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01496390903135923
Keywords
Nanofiltration membrane; polyacrylonitrile; pure solvent permeability coefficients; solvent resistance
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We have studied the solvent resistance of polyacrylonitrile membranes hydrolyzed by NaOH. The hydrolyzed polyacrylonitrile membranes provide a candidate material for either the selective layer or the supporting layer for the solvent resistant composite membrane. The origin of this solvent resistance is summarized. Polyacrylonitrile (PAN) cation-exchange NF membranes were prepared from ultrafiltration (UF) membranes through a convenient way developed recently by us. Several explanations for the difference of various solvent permeability coefficients of the cation-exchange PAN NF membrane were also suggested. Relatively high permeability was observed for the solvents with a benzene ring structure. Furthermore, products of their viscosities and permeability, mu L-P(0), are close to a constant.
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