journal6 ›› 2002, Vol. 23 ›› Issue (4): 26-29.

• Doctoral Forum • Previous Articles     Next Articles

Helicoidal Properties of Cholesteric Liquid Crystalline for Urethane Derivatives of Chitosan

  

  1. (Department of Materials Science and Engineering,Xiamen University,Xiamen 361005,Fujian China)
  • Online:2002-12-15 Published:2012-11-09

Abstract: The helicoidal properties of three urethane derivatives of chitosan in cholesteric liquid crystalline phase were studied by means of circular dichroism spectroscopy.The 65% chloroform solutions of all three derivatives demonstrated cholesteric liquid crystalline phase.A strong influence of the substituent on the twist sense was investigated.

Key words: chitosan, derivatives, cholesteric phase, liquid crystals, helicoidal structure, circular dichroism

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