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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/22024


    標題: Effect of sulfonation on characterizations and morphology of asymmetric polycarbon membranes by wet phase inversion method
    作者: Chi-Yu Shih
    Shih-Hsiung Chen
    Rey-May Liou
    Jing-Song Chang
    貢獻者: 環境工程與科學系
    日期: 2008-06
    上傳時間: 2009-11-27 15:51:21 (UTC+8)
    摘要: This paper presents an original approach to study the dependence of the sulfonation conditions of polycarbonate membranes on the separation performance and their influence on the membrane morphology. The degrees of sulfonation of polycarbonate membranes can be prepared by various dosages of sulfonic acid in the sulfonation process. The degree of sulfonation and polymer concentration in casting solution showed the significant effect on the membrane formation in wet phase inverse process. It was found that the permselectivity of sulfonate asymmetric polycarbonate membranes showed a strongly enhancement by increasing the degree of sulfonation. Both of the permeation rate and permselectivity increased with increasing the degree of sulfonation of polycarbonate membranes. It was found that the separation performances of the sulfonation membranes were dominated by the enhancement of hydrophilic property of modified membranes.
    Appears in Collections:[環境工程與科學系(所)] 會議論文

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