PLA/E-MA-GMA反应性共混研究  

Study on Reactivity of PLA/E-MA-GMA Blends

作　　者：高珊珊[1] 王坚荣[1] 苏志忠[1] 饶强[1] 姜基昌[1] 苏雪丽[1] 林武滔[1] 

机构地区：[1]三明学院化学与生物工程系,福建三明365000

出　　处：《现代塑料加工应用》2012年第5期9-13,共5页Modern Plastics Processing and Applications

基　　金：福建省自然基金项目(2011J01328);三明学院质量工程项目资助

摘　　要：在聚乳酸(PLA)中加入乙烯-丙烯酸甲酯(EMA)和乙烯-丙烯酸甲酯-甲基丙烯酸甘油酯(E-MA-GMA)共聚物,制备了PLA/EMA和PLA/E-MA-GMA共混物。考察了共混体系中E-MA-GMA与PLA基体间的相互作用。结果表明,E-MA-GMA分散相与PLA基体间的界面模糊,相互作用强,共聚物E-MA-GMA的环氧基团与PLA的端羧基或端羟基进行化学反应,PLA与E-MA-GMA形成了反应性共混体系。Blends of poly （lactic acid） （PLA）/ethylene-methyl acrylate （EMA）, PLA/ ethylene-methyl acrylate-glycidylmethacrylate terpolymer （E-MA-GMA） were prepared. The intermolecular interaction between PLA and E-MA-GMA in PLA/E-MA-GMA blend was investigated. The results show that the interface between the dispersed phase and PLA matrix is illegible, and the interaction between them is strong. Chemical reaction between the end carboxyl groups or end hydroxyl groups olf PLA and epoxy groups of E-MA-GMA take place, which lead to a reactive PLA/ E-MA-GMA blend.

关 键 词：聚乳酸 乙烯-丙烯酸甲酯 乙烯-丙烯酸乙酯-甲基丙烯酸甘油酯 共混物 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]