Permselectivities of poly(vinyl chloride) membrane for binary alcohol mixtures in pervaporation |
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| Authors: | Hiroshi Okuno Koji Morimoto Tadashi Uragami |
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| Affiliation: | (1) Department of Applied Chemistry, Faculty of Engineering, Kansai University, 564 Osaka, Suita, Japan;(2) Chemical Branch, Faculty of Engineering, Kansai University, 564 Suita, Osaka, Japan |
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| Abstract: | Summary Permeation and separation characteristics of binary alcohol mixtures for relatively hydrophobic polymer, poly(vinyl chloride) (PVC), membrane were investigated on pervaporation. In single component measurements, it was found that small-sized alcohol had high solubility and high normalized permeation rate for the PVC membrane. In binary mixture measurements, small-sized alcohol was preferentially incorporated into the PVC membrane in all alcohol mixtures and was predominantly permeated through the membrane. It was found that the solubitity and diffusivity of small-sized alcohol was higher than those of other alcohols in all systems. |
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