Linear, high molecular weight polyethylene from a discrete, mononuclear phosphinoarenesulfonate complex of nickel(ii)
作者:Philippe Perrotin、Jenny S. J. McCahill、Guang Wu、Susannah L. Scott
DOI:10.1039/c1cc00095k
日期:——
A well-defined, homogeneous catalyst, [(Ph)(2-(2',6'-(OMe)(2)-C(6)H(3))-C(6)H(4))P(2-SO(3)-C(6)H(4))]Ni(Ph)PPh(3), in which a single, bulky ortho-biphenyl substituent on the chelating phosphine blocks one axial position, is very active for formation of linear polyethylene (M(n) = 403,000 g mol(-1), M(w)/M(n) = 1.87).
定义明确的均相催化剂,[[Ph](2-(2',6'-(OMe)(2)-C(6)H(3))-C(6)H(4))P( 2-SO(3)-C(6)H(4))Ni(Ph)PPh(3),其中在螯合膦上的单个大体积邻联苯取代基阻断一个轴向位置,对形成非常活跃线性聚乙烯(M(n)= 403,000 g mol(-1),M(w)/ M(n)= 1.87)。