波谱学杂志 ›› 1997, Vol. 14 ›› Issue (2): 115-119.

• 研究论文 • 上一篇    下一篇

硫酸交联壳聚糖干膜的13C CP MAS NMR研究

江涛1, 韩秀文1, 杨苹1, 江成璋1, 陆世维1, 杨年华2, 裘鉴卿2   

  1. 1. 中国科学院大连化学物理研究所, 大连 116023;
    2. 中国科学院武汉物理与数学研究所, 武汉 430071
  • 收稿日期:1996-10-03 修回日期:1996-11-07 出版日期:1997-04-05 发布日期:2018-01-22

13C CP MAS NMR STUDIES OF THE DRY SULFATE CHITOSAN MEMBRANE

Jiang Tao1, Han Xiuwen1, Yang Ping1, Jiang ChengZhang1, Lu Shiwei1, Yang Nianhua2, Qiu Jianqing2   

  1. 1. Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, 116023;
    2. Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071
  • Received:1996-10-03 Revised:1996-11-07 Online:1997-04-05 Published:2018-01-22

摘要: 以不同浓度硫酸交联的壳聚糖干膜为研究对象,在国内首次采用13C CP MAS NMR技术从分子水平上对壳聚糖膜的结构进行研究,结果表明干膜壳聚糖分子的构象能直观地反映出膜的交联状况,交联状况与膜的分离性能密切相关,但仅对干膜的考察还不够全面.

关键词: 13C CP MAS NMR, 壳聚糖膜, 分子构象, 分子运动

Abstract: The structure of the dry chitosan membranes crosslinked by sulfuric acid at different concentrations was investigated by 13C CP MAS NMR method. The results show that the crosslinking situation of the membrane can be reflected directly by the molecular conformation of the sulfate chitosan, and has a close relationship with the permeation selectivity of the membrane. We have also found that, for some types of membranes, it is not sufficient to study the membrane only in dry state.

Key words: 13C CP MAS NMR, Chitosan membrane, Molecular conformation, Molecular motion