MEMBRANE
Online ISSN : 1884-6440
Print ISSN : 0385-1036
ISSN-L : 0385-1036
Separation of Water-Acetic acid Mixture by Pervaporation through Synthetic Polymer Membranes Containing Pendant Carboxylic acid
Masakazu YOSHIKAWATakashi YUKOSHIKohei SANUINaoya OGATA
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JOURNALS FREE ACCESS

1985 Volume 10 Issue 4 Pages 247-253

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Abstract

Separation of water-acetic acid mixture through a membrane was carried out. Membranes obtained from poly (acrylic acid-co-acrylonitrile) and poly (acrylic acid-co-styrene) were effective for a selective separation of water from aqueous acetic acid solution by means of pervaporation method. Permeation of water and acetic acid through membranes from poly (acrylic acid-co-acrylonitrile) was interpreted by a carrier mechanism, in which carboxylic acid moiety in the membrane played a role as a fixed carrier for both permeates. Water was permeated through poly (acrylic acid-co-styrene) membranes by TYPE II mechanism, in other words, an all or nothing mechansim, while acetic acid was permeated without having any specific interaction with the membrane.

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