以AIBN为引发剂、FeCl3为催化剂、PPh3为配体,在乙腈中实现了N-乙烯基吡咯烷酮(NVP)的反向原子转移自由基聚合(RATRP).动力学研究表明,聚合产物聚乙烯基吡咯烷酮(PVP)的分子量与单体转化率成线性关系,反应10 h后,PVP的平均分子量(-M)n为2964,分子量分散系数(PDI)为1.18.以含有端基Cl原子的PVP-Cl作为大分子引发剂,FeCl2/PPh3为催化体系,通过甲基丙烯酸甲酯(MMA)的原子转移自由基聚合(ATRP)合成了嵌段共聚物(PVP-b-PMMA),用凝胶渗透色谱(GPC)、红外光谱(FT-IR)和核磁共振(1H-NMR)等方法对产物进行了表征.
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