两性壳聚糖的合成条件优化及结构表征  

Optimization of Synthetic Condition and Structure Characterization of Amphoteric Chloride Chitosan

作　　者：罗序燕[1] 朱传华 武斌[1] 彭鹏[1] 夏美林[1] 任力理[1] 熊道陵[1] 

机构地区：[1]江西理工大学材料与化学工程学院,江西赣州341000 [2]赣州水务集团,江西赣州341000

出　　处：《有色金属科学与工程》2011年第2期32-37,共6页Nonferrous Metals Science and Engineering

基　　金：国家自然科学基金资助项目(50864004);江西省科技厅资助项目(赣财教(2009)148号);江西省教育厅资助项目(GJJ11476GJJ11458)

摘　　要：以硝酸铈铵为引发剂,利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2 h,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.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 cerium nitrate as initiator.The reactive conditions between the carbox-ymethyl chitosan and quaternizational reagent DMDAAC was optimized by three factors 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 1.5 % of the chitosan quantity;monomer amount was 1.5 times as chitosan quantity.The product structure was characterized by using IR,UV,X-ray diffraction,TG/DTA and SEM.

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 

分 类 号：O656[理学—分析化学]