熔融法聚丙烯蜡接枝聚乙二醇的研究  

Study on Grafting of Polypropylene Wax with PEG by Melting Method

作　　者：彭思[1,2] 朱宏[1,2] 万霞[1] 蒋飞国[1] 林少全 

机构地区：[1]华南师范大学化学与环境学院,广东广州510006 [2]广东高校高分子新型材料产学研结合示范基地,广东广州510006 [3]广东联塑科技实业有限公司集团,广东佛山528300

出　　处：《华南师范大学学报（自然科学版）》2012年第3期82-85,共4页Journal of South China Normal University(Natural Science Edition)

基　　金：广东高校高分子新型材料产学研结合示范(暨研究生创新培养)基地项目(cgzhzd1007)

摘　　要：以马来酸酐作为反应单体,用熔融接枝的方法在聚丙烯蜡(PPW)上接枝马来酸酐,以其接枝产物为原料接枝聚乙二醇(PEG),合成PPW-g-PEG接枝共聚物.采用IR,DSC,TG对所得的聚合物进行表征,证明聚丙烯蜡与马来酸酐发生了接枝反应,该中间体也成功与PEG发生了缩聚反应,产物的热稳定性明显提高.相对分子量为1 000的PEG聚合物反应完全,且该相对分子量的改性接枝物的熔点降低多.Polypropylene - grafted - polyethylene glycol copolymers were prepared by coupling of polypropylene wax （PPW） containing maleic anhydride group （MAH） with polyethylene glycol （PEG） by virtue of melting method and were characterized by means of chemical titration, TG, DSC and FT - IR. The experimental results indicated that grafted copolymers were successfully obtained and showed lower melting points in comparison with polypropyl- ene wax. Furthermore, the grafted copolymer had better stability, and PPW-g -PEG （1000） by the reaction of PPW - MAH with PEG - 1000 showed lower acid value and higher grafting efficiency.

关 键 词：聚丙烯蜡 马来酸酐 PPW—g—PEG接枝共聚物 

分 类 号：O631[理学—高分子化学]