高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (3): 470.

• 论文 • 上一篇    下一篇

丙烯酸交联壳聚糖渗透汽化膜研究(Ⅰ)──膜结构及交联机理

钟伟, 葛昌杰, 陈新, 李文俊   

  1. 复旦大学高分子科学系, 上海 200433
  • 收稿日期:1995-03-13 出版日期:1996-03-24 发布日期:1996-03-24
  • 通讯作者: 钟伟,男,27岁,硕士,讲师,
  • 作者简介:钟伟,男,27岁,硕士,讲师,
  • 基金资助:

    国家自然科学基金

Studies on Novel Acrylic Acid Crosslinked Chitosan Pervaporation Membrane(Ⅰ)──Membrane Structure and Crosslinking Mechanism

ZHONG Wei, GE Chang-Jie, CHEN Xin, LI Wen-Jun   

  1. Department of Macromolecular Science, Fudan Univ., Shanghai 200433
  • Received:1995-03-13 Online:1996-03-24 Published:1996-03-24

摘要: 报道了一种新型渗透汽化膜──丙烯酸交联壳聚糖膜,通过溶胀、拉伸、渗透汽化分离以及红外光谱等手段研究了膜的结构和交联机理。实验结果表明,交联反应由两部分组成:丙烯酸的双键和壳聚糖的氨基的加成反应和丙烯酸另一端的羧基和壳聚糖的氨基的酸碱中和反应。

关键词: 壳聚糖, 丙烯酸, 交联, 渗透汽化, 膜结构

Abstract: A novel acrylic acid crosslinked chitosan membrane was prepared through a homogeneous solution reaction and its crosslinking structure was investigated through swelling ratio test, tensile measurement,IRspectra and pervaporation separation of ethanol/water mixtures using four kinds of sample membranes such as uncrosslinked chitosan membrane(sample A), chitosan membrane crosslinked by acrylic acid with and without inhibitor and methyl acrylic acid(sample B,Cand D,respectively).The crosslinking is proved to be via the addition reaction of the amino group of chtotsan to the double bond of acrylic acid and the neutral reaction between the amino group and the carboxyl group of acrylic acid.

Key words: Chitosan, Acrylic acid, Crosslinking, Pervaporation, Membrane structure

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