两性壳聚糖的合成条件优化及结构表

来源期刊：有色金属科学与工程2011年第2期

论文作者：罗序燕 朱传华 武斌 彭鹏 夏美林 任力理 熊道陵

文章页码：28 - 31

关键词：羧甲基壳聚糖；二甲基二烯丙基氯化铵；季铵化；羧甲基二甲基二烯丙基氯化铵壳聚糖

Key words：carboxymethyl chitosan ; dimethyl-dially-ammonium chloride ; quaternizationa carboxymethyl-dimethyldiallyammonium chloride chitosan

摘    要：

以硝酸铈铵为引发剂刑用二甲基二烯丙基氯化铵(DMDAAC)在羧甲基壳聚糖骨架上的接枝反应，制备了羧甲基二甲基二烯丙基氯化铵壳聚糖(CMCTS-DMDAAC)通过三因素三水平正交实验得出羧甲基壳聚糖与DMDAAC反应的优化实验条件为：反应温度为90℃，反应pH为7.0，反应时间为2h，引发剂用量为占羧甲基壳聚糖质量的1.5%，单体用量为羧甲基壳聚糖质量的1.5倍反应产物的结构通过红外光谱、紫外光谱、热重/差热分析、X衍射及扫描电镜进行了表征。

Abstract:

Carboxymethyl chitosan-dimethyl-diallyl-ammonium chloride (CMCTS-DMDAAC) was prepared via graft reaction of dimethyl-diallyl-ammonium chloride onto the chain of carboxymethyl with ammonium cenum nitrate as initiator. The reactive conditions between the carbox-ymethyl chitosan and quaternizational reagent DMDAAC was optimized by three factorq and three levels orthogonal experiment as follows: the reaction temperature is 90℃; reaction pH value is 7.0; reaction time is 2 h; the initiator amount was l.5 % of the chitosan quantity; monomer amount was l.5 times as chitosan quantity. The product structure was characterized by using IR,UV, X-ray diffraction, TC/DTA and SEM.