羧乙基壳聚糖的合成及表征  

Syethesis and characterization of carboxyethyl Chitosan

作　　者：宋庆平[1] 王崇侠[1] 丁纯梅[1] 

机构地区：[1]安徽工程科技学院生物化学工程系,安徽芜湖241000

出　　处：《化学研究与应用》2010年第6期774-776,共3页Chemical Research and Application

基　　金：安徽省教育厅高校自然科学基金(2003kj008zd)项目资助

摘　　要：The carboxyethyl chitosan(CEC)was synthesized by chitosan as materails with acrylic acid by Michael reaction.The factors such as mass ratio,pH value,time and temperature were investigated and the structure of the CEC was characterized by FT-IR,1H NMR.The results show:the mass ratio is 1:4,the best pH value is 6,the time is 5h and the optimum temperature is 90℃,the substitution degree of CEC is 0.75.The reaction proceeded in a short time compared with literature,The carboxyethylation mainly occurred on NH2.The carboxyethyl chitosan（CEC）was synthesized by chitosan as materails with acrylic acid by Michael reaction.The factors such as mass ratio,pH value,time and temperature were investigated and the structure of the CEC was characterized by FT-IR,1H NMR.The results show：the mass ratio is 1：4,the best pH value is 6,the time is 5h and the optimum temperature is 90℃,the substitution degree of CEC is 0.75.The reaction proceeded in a short time compared with literature,The carboxyethylation mainly occurred on NH2.

关 键 词：壳聚糖 羧乙基壳聚糖 迈克尔加成 

分 类 号：O636.1[理学—高分子化学]