Separation of aqueous ethanol mixtures through poly(cyclohexyl methacrylate-co-styrene) membranes.

SYNOPSISMembranes obtained from polymers, quaternized poly [ 3-(N',N'-dimethyl) aminopropylacrylamide-co-acrylonitrile] s, showed selective separation of water from aqueous ethanol solution by pervaporation. The separation factor toward water reached over 15,000. Membrane performance showed a good correlation to membrane polarity. Differential scanning calorimetric melting endotherms of the water-swollen membranes were studied to clarify the state of water in the membranes. The results suggested that there are two states of water in the membrane: bound and free. The higher the fraction of bound water in the membrane, clearly, the more preferentially was water permeated.

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Application and development of synthetic polymer membranes. VI. Pervaporation of aqueous ethanol solution through quaternized poly[3‐(N′,N′‐dimethyl) aminopropylacrylamide‐co‐acrylonitrile] membranes

Yoshikawa

Ochiai

Tanigaki

et al. 1991

J of Applied Polymer Sci

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Specialty polymeric membranes 3. Pervaporation separation of acetic acid/water mixtures through polymeric membranes having a pyridine moiety as a side group

Yoshikawa

Kuno

Kitao

1994

J of Applied Polymer Sci

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Pervaporation of an acetic acid/water mixture was studied through synthetic polymeric membranes made from poly(1‐butyl methacrylate), poly(2‐ethylhexyl methacrylate), polystyrene, and copolymers of 4‐vinylpyridine and styrene, whose mole fraction of 4‐vinylpyridine was 0.028 or 0.050. Permselectivities through polystyrene and poly(4‐vinylpyridine‐co‐styrene) (mole fraction of 4‐vinylpyridine, 0.050) are discussed based on the solution‐diffusion theory. © 1994 John Wiley & Sons, Inc.

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Specialty polymeric membranes

et al. 1993

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Separation of aqueous ethanol mixtures through poly(cyclohexyl methacrylate-co-styrene) membranes.

Cited by 9 publications

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Application and development of synthetic polymer membranes. VI. Pervaporation of aqueous ethanol solution through quaternized poly[3‐(N′,N′‐dimethyl) aminopropylacrylamide‐co‐acrylonitrile] membranes

Application and development of synthetic polymer membranes. VI. Pervaporation of aqueous ethanol solution through quaternized poly[3‐(N′,N′‐dimethyl) aminopropylacrylamide‐co‐acrylonitrile] membranes

Specialty polymeric membranes 3. Pervaporation separation of acetic acid/water mixtures through polymeric membranes having a pyridine moiety as a side group

Specialty polymeric membranes

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