| SELECTIVE SEPARATION OF WATER-ETHANOL MIXTURES THROUGH COPOLYMERIC MEMBRANES: Ⅰ. ACRYLIC ACID AND ACRYLONITRILE COPOLYMER AND ITS IONIZED MEMBRANES |
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| 引用本文： | 张富尧,张一烽,赵卓敏,沈之荃.SELECTIVE SEPARATION OF WATER-ETHANOL MIXTURES THROUGH COPOLYMERIC MEMBRANES: Ⅰ. ACRYLIC ACID AND ACRYLONITRILE COPOLYMER AND ITS IONIZED MEMBRANES[J].高分子科学,1993,0(3):242-248. |
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| 作者姓名： | 张富尧 张一烽 赵卓敏 沈之荃 |
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| 作者单位： | Department of Chemistry，Zhejiang University，Hangzhou 310027，Department of Chemistry，Zhejiang University，Hangzhou 310027，Department of Chemistry，Zhejiang University，Hangzhou 310027，Department of Chemistry，Zhejiang University，Hangzhou 310027 |
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| 摘 要： | The copolymer of acrylic acid and acrylonitrile has been synthesized and pervaporation properties of the copolymeric membranes have been investigated. In order to elucidate the influence of membrane-permeate interaction on the pervaporation of water-ethanol mixtures and to prepare much improved membranes, the membranes have been treated with alkali metal, alkali earth metal and transition metal salt aqueous solutions. The treated membranes (ionized membranes) exhibited higher separation factors than the untreated membranes. The separation factors of various alkali metal cation membranes decreased in the following order : Li~+>Na~+>K~+, and the permeation rates showed an opposite tendency. The dependence of pervaporation behavior on the copolymer composition ,feed concentration and operating temperature have been studied with both ionized and non-ionized membranes. The apparent activation energies of water and ethanol permeation were calculated.
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| 收稿时间： | 1992-03-09 |
SELECTIVE SEPARATION OF WATER-ETHANOL MIXTURES THROUGH COPOLYMERIC MEMBRANES: Ⅰ. ACRYLIC ACID AND ACRYLONITRILE COPOLYMER AND ITS IONIZED MEMBRANES |
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| ZHANG Fuyao,ZHANG Yifeng,ZHAO Zhuomin,SHEN Zhiquan.SELECTIVE SEPARATION OF WATER-ETHANOL MIXTURES THROUGH COPOLYMERIC MEMBRANES: Ⅰ. ACRYLIC ACID AND ACRYLONITRILE COPOLYMER AND ITS IONIZED MEMBRANES[J].Chinese Journal of Polymer Science,1993,0(3):242-248. |
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| Authors: | ZHANG Fuyao ZHANG Yifeng ZHAO Zhuomin SHEN Zhiquan |
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| Institution: | Department of Chemistry; Zhejiang University; Hangzhou |
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| Abstract: | The copolymer of acrylic acid and acrylonitrile has been synthesized and pervaporation properties of the copolymeric membranes have been investigated. In order to elucidate the influence of membrane-permeate interaction on the pervaporation of water-ethanol mixtures and to prepare much improved membranes, the membranes have been treated with alkali metal, alkali earth metal and transition metal salt aqueous solutions. The treated membranes (ionized membranes) exhibited higher separation factors than the untreated membranes. The separation factors of various alkali metal cation membranes decreased in the following order : Li~+>Na~+>K~+, and the permeation rates showed an opposite tendency. The dependence of pervaporation behavior on the copolymer composition ,feed concentration and operating temperature have been studied with both ionized and non-ionized membranes. The apparent activation energies of water and ethanol permeation were calculated. |
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| Keywords: | Pervaporation Separation behavior Water/ethanol mixture Acrylonitrileacrylic acid copolymer |
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