Preparation and Characterization of Acylated Chitosan

Chemical Research in Chinese Universities ›› 2005, Vol. 21 ›› Issue (1): 114-116.

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Preparation and Characterization of Acylated Chitosan

LI Ming-chun, LIU Chao, XIN Mei-hua, ZHAO Huang, WANG Min, FENG Zhen, SUN Xiao-li

College of Material Science and Engineering, Huaqiao University, Quanzhou 362011, P. R. China

Received:2003-11-03 Online:2005-01-24 Published:2011-07-27
Supported by:
Supported by the National Natural Science Foundation of China(No.20274013), Key Project of the Fujian Provincial Science and Technology(No.2002I004), and the Natural Science Foundation of Fujian Province(No.E0110027 and No.C0310009).

Abstract

Abstract: Fully acylated chitosan and N, N-diacyl chitosan were prepared.The products were characterized by elemental analysis, FTIR and ¹H NMR.The experimental results indicate that the average degree of acylation depends on the volume ratio of pyridine to chloroform in the reaction medium, the chain length of the acylation agent used, and the molecular weight of chitosan raw materials.The XRD measurements were carried out for pure chitosan, fully acylated chitosan and N, N-diacyl chitosan to verify the crystallinity change caused by the acylation.

Key words: Chitosan, Acylation, Degree of substitution, XRD

LI Ming-chun, LIU Chao, XIN Mei-hua, ZHAO Huang, WANG Min, FENG Zhen, SUN Xiao-li. Preparation and Characterization of Acylated Chitosan[J]. Chemical Research in Chinese Universities, 2005, 21(1): 114-116.

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Preparation and Characterization of Acylated Chitosan

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