高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (4): 647.

• 论文 • 上一篇    下一篇

PVA/PVP共混交联膜的渗透蒸发分离性质(Ⅰ)

胡晓华, 平郑骅, 朱青, 丁之明, 丁雅娣   

  1. 复旦大学高分子科学系, 国家教育委员会聚合物分子工程开放实验室, 上海, 200433
  • 收稿日期:1996-12-23 出版日期:1998-04-24 发布日期:1998-04-24
  • 通讯作者: 平郑骅
  • 作者简介:胡晓华,男,24岁,硕士研究生.
  • 基金资助:

    高等学校博士学科点专项基金

Pervaporation Properties of Cross-linked PVA/PVP Blend Membrane(Ⅰ)

HU Xiao-Hua, PING Zheng-Hua, ZHU Qing, DING Zhi-Ming, DING Ya-Di   

  1. Department of Macromolecular Science, Fudan University, Shanghai, 200433
  • Received:1996-12-23 Online:1998-04-24 Published:1998-04-24

摘要: 研究了4,4'-双叠氮芪-2,2'-二磺酸钠和戊二醛对聚乙烯吡咯烷酮(PVP)、聚乙烯醇(PVA)共混膜的交联及交联对共混膜分离恒沸点附近的乙醇/水混合物的影响.结果表明,膜的分离性质随着膜中PVP含量的增加而改变;采用混合型交联剂对PVA/PVP共混膜交联能明显改善膜的选择性.

关键词: 渗透蒸发, PVA/PVP共混膜, DAS, 交联

Abstract: The pervaporation properties of the ploy(vinyl alcohol)(PVA) and poly(vinyl pyrrolidone)(PVP) blend membranes crosslinked by glutaraldehyde and a water soluble diazo compound(4,4′-diazidostilbene-2,2′-disulfonic acid disodium salt(DAS) in the separation of ethanol/water mixture were studied. It was found that the pervaporation properties of the membranes are changed as the PVPcontent changed, and the selectivity of the membranes are improved after crosslinking.

Key words: Pervaporation, PVA/PVP blend membrane, Crosslinking

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