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化学学报
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化学学报 ›› 2006, Vol. 64 ›› Issue (19): 2027-2032. 上一篇    下一篇

研究论文

UV辐照接枝聚合制备亲水性纳滤膜

佘振, 殷冠南, 平郑骅*   

  1. (教育部聚合物分子工程重点实验室 复旦大学高分子科学系 上海 200433)
  • 投稿日期:2005-11-19 修回日期:2006-04-26 发布日期:2006-10-14
  • 通讯作者: 平郑骅

Preparation of Hydrophilic Charged Nanofiltration Membrane by UV Irradiation Graft Polymerization

SHE Zhen; YIN Guan-Nan; PING Zheng-Hua*   

  1. (Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecule Science, Fudan University, Shanghai 200433)
  • Received:2005-11-19 Revised:2006-04-26 Published:2006-10-14
  • Contact: PING Zheng-Hua

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1113

被引次数

52

用紫外光引发自由基共聚接枝的方法对酚酞基聚芳醚酮(PEK-C)超滤膜表面进行改性制备了亲水性荷电纳滤膜. 研究了用不同单体接枝改性膜对盐溶液的截留性能, 证明了Donnan电荷效应对纳滤膜分离性能的影响. 在此基础上, 通过丙烯酸(AA)与对苯乙烯磺酸钠(SSS)的共聚接枝, 并改变它们在接枝液中的相对含量, 成功地制备出膜的表观截留率和渗透通量都较高的纳滤膜.

关键词: UV接枝, 酚酞基聚芳醚酮, 表面荷电纳滤膜, 对苯乙烯磺酸钠, 丙烯酸

A novel hydrophilic charged nanofiltration membrane was prepared via UV irradiation graft polymerization on the polyetherketone-cadro (PEK-C) ultrafiltration membrane. The influence of grafting monomer nature on the salt rejection of the membrane showed the effect of Donnan interaction on the membrane performances in nanofiltration. Based on this phenomenon, graft copolymerization with sodium styrenesulfate (SSS) and acrylic acid (AA) has been applied to the modification of PEK-C membranes. By adjusting the molar ratio of the monomers a nanofiltration membrane with higher performance has been obtained.

Key words: UV irradiation, polyetherketone-cadro, surface charged nanofiltration membrane, sodium styrene sulfonate, acrylic acid