过渡金属盐催化下的MA活性自由基聚合反应

Transition - metal - catalyzed Atom Transfer Radical Polymerization of Methyl Acrylate in the Presence of a Conventional Radical Initiator

在原子活性自由基聚合中，丙烯酸甲酯（ＭＡ）可用普通引发剂偶氮二异丁腈（ＡＩＢＮ）通过一种新的方法能成功聚合．此反应首先在６５℃的温度中持续１０ｈｒ，然后在１００℃中聚合．笔者应用同一引发体系但使用ＡＩＢＮ和ＣｕⅡＣｌ２不同的摩尔比做此项实验，所有的实验结果都说明此种聚合方法引发效率高，易于控制，所得产物分子量分布较窄，一般情况下Ｍｗ／Ｍｎ＝１．４０．

Transition - metal - catalyzed atom transfer radical polymerization of methyl acrylate in the presence of a conventional radical initiator (AIBN) in bulk was successfully implemented through a new polymerization procedure. The system first reacts at 65℃ for ten hours, then polymerizes at 100℃. Various molar ratios of AIBN were used in this experiment, all of which resulted in a well - controlled radical polymerization with high initiation efficiency and narrow molecular weight distribution, i. e., the polydispersity is generally as low as Mw/Mn = 1. 40.