魔芋葡甘聚糖接枝共聚物/聚己内酯共混膜的性能研究  

Properties of konjac glucomannan graft copolymer/polycaprolactone blend films

作　　者：辛华[1] 任庆海[1] 翟大伟[1] 

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2015年第2期98-102,共5页Journal of Shaanxi University of Science & Technology

基　　金：陕西省科技厅自然科学基金项目(2012JM6011);陕西科技大学博士科研启动基金项目(BJ12-27)

摘　　要：通过自由基聚合反应,得到了魔芋葡甘聚糖接枝丙烯酸甲酯及甲基丙烯酸甲酯共聚物(KGM-g-MA/MMA),再将其与聚己内酯(PCL)熔融共混成膜.重点研究了共混膜的力学性能、结晶性能、热性能及相容性等.结果表明:魔芋葡甘聚糖接枝共聚物的加入改善了聚己内酯的力学性能;XRD测试表明共混膜结晶性能接近聚己内酯;DSC分析表明共混膜的结晶温度提高;TG分析表明共混膜的热分解呈现两个阶段,热稳定性介于两种单一组分聚合物之间;断面扫描电镜分析表明共混膜中两种聚合物组分相容性良好.The konjac glucomannan graft copolymer（KGM-g-MA/MMA）is synthesized with konjac glucomannan（KGM）and methyl acrylate（MA）and methy methacrylate（MAA）by radical polymerization.The blend films are obtained by melt blend method with KGM-g-MA/MMA and polycaprolactone（PCL）.The mechanical property,crystallization property,thermal property and compatibility of blend films are studied.The results show that the PCL mechanical property is strengthened by adding the KGM-g-MA/MMA.XRD tests indicate that the crystallization property of the blend film is near to that of PCL.DSC analysis shows that the crystal temperature of blend film is raised.TG analysis shows that the thermal decomposition of blend films has two stages,and the thermal stability is between in that of KGM-gMA/MMA and pure PCL.SEM analysis of the films fracture surface indicates that the compatibility of the two polymer components of the blend films is good.

关 键 词：魔芋葡甘聚糖接枝共聚物 共混膜 结晶性能 热性能 

分 类 号：TQ433.9[化学工程]