交联剂对季铵化壳聚糖膜结构与性能的影响  

Effects of crosslinking agents on structure and performance of quaternized chitosan membrane

作　　者：李圣平[1] 姚丽珠[1] 王吉林[1] 张扬[1] 赵崇峰[1] 王璐璐[1] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001

出　　处：《石化技术与应用》2015年第4期291-295,共5页Petrochemical Technology & Application

基　　金：辽宁省科技厅博士启动项目(项目编号:20141126);辽宁省教育厅科学研究一般项目(项目编号:L 2013153);抚顺市科学技术发展资金计划项目(项目编号:20141115);辽宁石油化工大学博士启动基金(项目编号:2013 XJJ-006);辽宁省大学生创新创业训练计划项目(项目编号:201410148006)

摘　　要：以季铵化壳聚糖为制膜原料,分别以戊二醛和乙二醇二缩水甘油醚为交联剂,制备2种不同交联剂交联的季铵化壳聚糖膜,考察2种交联膜的含水率、离子交换量、电导率、机械强度等性能。结果表明,使用交联剂后膜的含水率、溶胀度、离子交换量均随交联剂用量的增加而降低,机械强度(拉伸强度和断裂伸长率)随交联剂用量的增加先增大再减小。使用乙二醇二缩水甘油醚为交联剂的季铵化壳聚糖膜,其导电性能、机械性能以及含水率等指标均优于使用相同剂量的戊二醛为交联剂的季铵化壳聚糖膜。Two different crosslinked quaternized chitosan （QCS） membranes were prepared with QCS as raw material, glutaric dialdehyde and ethylene glycol diglycidyl ether as crosslinking agent respectively, and the performances of the obtained membranes were investigated, including： moisture, ion exchange capacity, conductivity, mechanical strength and so on. The results showed that moisture, swelling degree, ion exchange capacity of the membrane all decreased with increasing crosslinking agent,and the mechanical strength （tensile strengthand elongation at break） first increased and then decreased with the increase of the crosslinking agent. The conductivity, mechanical property and moisture of QCS membrane with ethylene glycol diglycidyl ether as crosslinking agent were superior to those of QCS with the same amount of glutaric dialdehyde as crosslinking agent.

关 键 词：季铵化壳聚糖 乙二醇二缩水甘油醚 阴离子交换膜 交联剂 

分 类 号：TQ224.14[化学工程—有机化工]