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高等学校化学研究 ›› 1998, Vol. 14 ›› Issue (4): 408-413.

• Articles • 上一篇    下一篇

Studies of Permeabilities of Metallic Ions Through Crosslinked Chitosan Membranes

FANG Yue-e1, LU Xiao-bing1, WANG Huan-ting1, CHENG Qing1, CHEN Bo-jun2, CHEN Guo-jun2, WANG Yong-jie2, WANG Shao-gen2   

  1. 1. Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026;
    2. First Affiliated Hospital of Anhui Medical University, Hefei 230026
  • 收稿日期:1997-07-30 出版日期:1998-12-24 发布日期:2011-08-17
  • 通讯作者: FANG Yue-e

Studies of Permeabilities of Metallic Ions Through Crosslinked Chitosan Membranes

FANG Yue-e1, LU Xiao-bing1, WANG Huan-ting1, CHENG Qing1, CHEN Bo-jun2, CHEN Guo-jun2, WANG Yong-jie2, WANG Shao-gen2   

  1. 1. Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026;
    2. First Affiliated Hospital of Anhui Medical University, Hefei 230026
  • Received:1997-07-30 Online:1998-12-24 Published:2011-08-17

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摘要： Chitosan and its crosslinked membranes were prepared with glutaraldehyde(GA)as crosslinking agent with the aid of solvent-casting technique and were characterized by means of infrared,X-ray diffraction,and contact angle testing methds.These membranes have a higher permeability to K+,Na+,Mg2+and Ca2+who seper meability order is as follows:K+>Na+>Mg2+>Ca2+.The DSC ther mograms of the crosslinked membranes confirmed the existence of two types of water.The amount of free water in the swollen membranes increased with increasing the crosslinking density.The effect of crosslinking reaction on permeation rate was explained by presuming to permeate through the free water region in the swollen membrane.

关键词: Chitosan, Metal ion, Glutaraldehyde(GA), Crosslinking density, Permeation coefficient

Abstract: Chitosan and its crosslinked membranes were prepared with glutaraldehyde(GA)as crosslinking agent with the aid of solvent-casting technique and were characterized by means of infrared,X-ray diffraction,and contact angle testing methds.These membranes have a higher permeability to K+,Na+,Mg2+and Ca2+who seper meability order is as follows:K+>Na+>Mg2+>Ca2+.The DSC ther mograms of the crosslinked membranes confirmed the existence of two types of water.The amount of free water in the swollen membranes increased with increasing the crosslinking density.The effect of crosslinking reaction on permeation rate was explained by presuming to permeate through the free water region in the swollen membrane.

Key words: Chitosan, Metal ion, Glutaraldehyde(GA), Crosslinking density, Permeation coefficient