This invention relates to polymerization catalysts for unsaturated monomers which are represented by the following general formula [1]:
MR1kR2mR3nQh [1]
wherein R1 is selected from ligands having at least one nitrogen, sulfur, phosphorus or oxygen atom; R2 is selected from ligands comprising cyclic hydrocarbons having π-electrons, and R1 and R2 may be crosslinked with each other; R3 is selected from ligands comprising a hydrogen atom, alkyl groups, aryl groups, silicon-containing alkyl groups and silicon-containing aryl groups; M is a metal selected from the metals of group III of the periodic table; Q is selected from halogen atoms and electron-donating ligands, where Q may be the same or different if h is more than one; k is an integer of 1 to 4; and m, n and h are each 0 or an integer of 1 to 4.
本发明涉及不饱和单体的聚合催化剂,其通式如下[1]:
MR1kR2mR3nQh [1].
其中R1选自至少有一个氮、
硫、
磷或氧原子的
配体;R2选自由有π电子的
环烃组成的
配体,R1和R2可相互交联;R3选自由氢原子、烷基、芳基、含
硅烷基和含
硅芳基组成的
配体;M 是选自元素周期表第 III 族
金属的
金属;Q 是选自卤素原子和电子捐赠
配体的
配体,其中如果 h 多于一个,Q 可以相同或不同;k 是 1 至 4 的整数;m、n 和 h 各为 0 或 1 至 4 的整数。