共单体对GMA熔融接枝iPB-1的影响  

Effect of Comonomers on GMA Melt Grafting Onto iPB-1

作　　者：刘珍[1] 韩雷[1] 赵永仙[1] 胡全超[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《现代塑料加工应用》2013年第5期11-14,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金(51243002)资助

摘　　要：采用转矩流变仪研究了α-甲基苯乙烯(AMS)和癸烯-1(Decene-1)2种共单体对甲基丙烯酸缩水甘油酯(GMA)熔融接枝高全同聚丁烯-1(iPB-1)(接枝物为iPB-g-GMA)的影响。结果表明:与能明显促进GMA接枝iPB-1反应的共单体苯乙烯(St)相比,AMS对GMA接枝iPB-1反应基本没有促进作用;而Decene-1可以略微提高GMA的接枝率和接枝效率。并通过对AMS,St及GMA的共轭效应值和极性值进行比较,选择共单体时不仅要考虑单体和共单体之间的竞聚率,还要考虑共单体的空间位阻效应。The effects of two comonomers（Decene-1 and AMS） on iPB-g-GMA were studied by means of torque rheometer. The results show that AMS canrt basically im- prove the grafting degree and grafting efficiency of GMA,compared with styrene which can enhance significantly the reaction of GMA grafting iPB-1, while Decene-1 can slightly increase the grafting degree and grafting efficiency of GMA. Analysing the conju- gated effect values and polarity values of AMS, St and GMA, it should be considered not only reactivity ratio between monomer and comonomer but also its steric-hinerance effect when choosing the comonomer .

关 键 词：高全同聚丁烯-1 熔融接枝 甲基丙烯酸缩水甘油酯 Α-甲基苯乙烯 癸烯-1 接枝率 

分 类 号：TQ325.15[化学工程—合成树脂塑料工业]