高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (6): 973.

• 论文 • 上一篇    下一篇

壳聚糖的液晶行为研究

董炎明, 张璟   

  1. 厦门大学化学系, 厦门 361005
  • 收稿日期:1995-06-06 出版日期:1996-06-24 发布日期:1996-06-24
  • 通讯作者: 董炎明,男,47岁,副教授.
  • 作者简介:董炎明,男,47岁,副教授.
  • 基金资助:

    国家教育委员会留学回国人员基金

Studies on Liquid Crystalline Behavior of Chitosan

DONG Yan-Ming, ZHANG Jing   

  1. Department of Chemistry, Xiamen University, Xiamen 361005
  • Received:1995-06-06 Online:1996-06-24 Published:1996-06-24

PDF (PC)

被引次数

32

摘要： 用偏光显微术、平均折射率法和富立叶红外光谱法研究了壳聚糖的溶致液晶行为。在二氯乙酸、甲酸、丙烯酸和36%乙酸等溶剂中测得的临界浓度都是8%(体积比)或4%～6%(重量比),与根据Flory理论得到的计算值相符。低的临界浓度值表明壳聚糖的链刚性比纤维素的大。

关键词: 壳聚精, 溶致性液晶, 临界浓度, 链刚性

Abstract: The lyotropic liquid crystalline behavior of a natural macromolecule-chitosan was studied using polarized microscopy,average refractive index method and FTIR.The critical concentrations of chitosan in solvents of dichloroacetic acid,formic acid,acrylic acid and 36% acetic acid were all 8% (percentage by volume) or 4%～6%(percentage by weight).These experimental values are consistent with the calculated value deduced according to Flory theory.These low critical concentration values also imply that the chain rigidity of chitosan is larger than that of cellulosic chain.

Key words: Chitosan, Lyotropic liquid crystal, Critical concentration, Chain rigidity

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