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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/22037

    標題: The influence of ion crosslinking on separation performance of asymmetric sulfonate Polysulfone membranes in pervaporation
    作者: Shih-Hsiung Chen
    Rey-May Liou
    Chi-Yu Shih
    Cheng-Hsien Huang
    Cheng-Lee Lai
    Mu-Ya Hung
    Juin-Yih Lai
    貢獻者: 環境工程與科學系
    日期: 2008-06
    上傳時間: 2009-11-27 15:53:44 (UTC+8)
    摘要: The ion crosslinking sulfonate polysulfones (Na-PSF, Mg-PSF, Al-PSF) were prepared by sulfonation technology and they were applied to prepare as asymmetric membranes for dehydrating of water/ethanol mixtures by pervaporation. The degree of ion crosslink showed a strongly influence on both of the membrane formation path ways in phase inverse process and the separation performance of pervaporation membranes with different cation crosslinking in casting solution. The cation crosslinking of polysufone enhanced the viscosity of casting solution and formed a denser skin layer during the wet phase inverse process. The swelling and hydrophilic properties measurements found that the water selective membranes can be formed by increased the ion crosslinking in polymer membrane and then the degree of swelling of modified membranes decreased with increasing the cation content in polymer matrix. The effect of water selectivity of ion crosslinking membranes on the water uptake of membranes were verified by the sorption test with 90% ethanol/water mixture at 25℃.
    關聯: The Eighth Conference on Membrane Science & Technology in Taiwan,起迄日:2008/6/27,地點:中壢
    Appears in Collections:[環境工程與科學系(所)] 會議論文

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