Palladium-Based System for the Polymerization of Acrylates. Scope and Mechanism
作者:Christine Elia、Sharon Elyashiv-Barad、Ayusman Sen、Raquel López-Fernández、Ana C. Albéniz、Pablo Espinet
DOI:10.1021/om020435q
日期:2002.9.1
found to effect the polymerization of acrylates upon addition of 1 equiv of a monodentate phosphine or pyridine or an excess of halide. Methyl methacrylate was not polymerized, and furthermore, its addition stopped the progress of independently initiated methyl acrylate polymerization in the phosphine-based system. Addition of ethene also inhibited the polymerization of methyl acrylate. However, over 10
发现中性钯络合物[Pd(C 6 F 5)Br(NCMe)2 ](1)通过添加1当量的单齿膦或吡啶或过量的卤化物来实现丙烯酸酯的聚合。甲基丙烯酸甲酯未聚合,此外,其添加停止了基于膦的体系中独立引发的丙烯酸甲酯聚合的进程。乙烯的添加也抑制了丙烯酸甲酯的聚合。但是,当将1-己烯与丙烯酸甲酯一起加入时,聚合物中1-己烯的掺入量超过10mol%。讨论了聚合机理。