Separation Properties of Negatively Charged Membranes for Pervaporation in Water-Ethanol Mixture
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概要
- 論文の詳細を見る
Different kinds of negatively charged membranes, namely poly (acrylonitrile-co-acrylic acid) (AN-AAc), sulfonated polysulfone (SPSF) and sulfonated polyethersulfone (SPES) membranes, were prepared by changing the contents of carboxyl and sulfonate groups in the membrane polymers. Using the prepared membranes, sorption and pervaporation experiments were conducted at 333 K in the mixtures of water and ethanol. In evaluating the sorption and pervaporation properties of these membranes, the values of ΔHWM and ΔHEM, which are the difference in solubility parameter between water and membrane polymer and that between ethanol and membrane polymer, respectively, are defined. Irrespective of the kind of membrane examined, a linear relation is observed between logarithmic values of selective sorption factor of water to ethanol, βW/E, and (ΔHEM/ΔHWM), as well as between those of separation factor, αW/E, and (ΔHEM/ΔHWM). It is found that the values of βW/E for cellulose acetate and polyion complex membranes can be evaluated from the relationships obtained in the AN-AAc, SPSF and SPES membranes.
- 社団法人 化学工学会の論文
著者
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Taya Masahito
Department Of Chemical Engineering Faculty Engineering Science Osaka University
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TONE Setsuji
Department of Chemical Engineering, Faculty Engineering Science, Osaka University
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Tone Setsuji
Department Of Chemical Engineering Faculty Of Engineering Science Osaka University
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Taya Masahito
Department Of Biotechnology Graduate School Of Engineering Osaka University
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HAMADA Toyozo
Department of Chemical Science and Engineering, Graduate School of Engineering Science, Osaka Univer
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Tone Setsuji
Department Of Chemical Science And Engineering Graduate School Of Engineering Science Osaka Universi
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Hamada T
Department Of Chemical Science And Engineering Graduate School Of Engineering Science Osaka Universi
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Hamada Toyozo
Department Of Chemical Engineering Osaka University
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