Proceedings of the Membrane Society of Korea Conference (한국막학회:학술대회논문집)
- 1995.09a
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- Pages.39-55
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- 1995
Pervaporation of aqueous organic mixture through in situ complex membranes based on polycrylonitrile
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Lee, Young-Moo
(Department of Industrial Chemistry, College of Engineering Hanyang University) ;
- Oh, Boo-Keun (Department of Industrial Chemistry, College of Engineering Hanyang University)
- Published : 1995.09.01
Abstract
Modified polycrylonitrile(PAN) membranes were prepared by emulsion or emulsifier-free emulsion polymerization technique. Separation capacity was determined at several operating temperatures(25, 40, 55 and 70 $^{\circ}$C) to dehydrate 56wt% pyridine aqueous solution through modified PAN membranes having different functional groups. All these PAN-based membranes were selective toward water to different degrees depending on the nature of functional groups present in the membranes. Pervaporation characteristics of PAN-based membranes are so different and classified into three categories depending on the type of the functional groups in PAN copolymers. Among PAN-based membranes, the in-situ complex membranes show the best separation capacity over the operating temperatures.
Keywords