以α-二硫代萘甲酸异丁腈酯(CmN)为链转移剂,偶氮二异丁腈(AIBN)为引发剂,CuCl2·2H2O为催化剂,2,2'-联二吡啶(bpy)为配体,对反向原子转移自由基聚合(RATRP)和可逆加成-断裂链转移自由基聚合(RAFT)的混合聚合体系进行了研究,得到了一系列末端带有双硫酯基团和-Cl的聚甲基丙烯酸甲酯均聚物.(1H-NMR)和(GPC)等测试结果表明,一锅法和两步法聚合体系均具有"活性"/可控聚合特征,其中两步法在反应初期分子量分布指数较一锅法宽,二者均存在短时间的诱导期.在混合聚合体系中,两种聚合机理共同起作用,使聚合体系具有"活性"聚合的特征.
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