The present invention provides an olefin coordination polymerization catalyst and use thereof. The composition of the raw materials of the olefin coordination polymerization catalyst comprises: a main catalyst and a cocatalyst, wherein a molar ratio of the transition metal halide in the main catalyst to the cocatalyst is 1:10-500; and the composition of the raw materials of the main catalyst comprises a magnesium compound, a transition metal halide, an alcohol having 2 to 15 carbon atoms, and a star-shaped organosiloxane compound in a molar ratio of 1:1-40:0.01-10:0.001-10; and the cocatalyst comprises an organoaluminum compound. The above olefin coordination polymerization catalyst is used as a catalyst for ethylene polymerization, propylene polymerization, and copolymerization of ethylene or propylene with an α-olefin. The olefin polymerization catalyst of the present invention has good catalytic activity.
本发明提供了一种烯烃配位聚合催化剂及其用途。该烯烃配位聚合催化剂的原料组成包括:主催化剂和助催化剂,其中主催化剂中过渡
金属卤化物与助催化剂的摩尔比为1:10-500;主催化剂的原料组成包括
镁化合物、过渡
金属卤化物、具有2至15个碳原子的醇和星形有机
硅氧烷化合物,其摩尔比为1:1-40:0.01-10:0.001-10;而助催化剂包括一种
有机铝化合物。上述烯烃配位聚合催化剂可用作
乙烯聚合、
丙烯聚合以及
乙烯或
丙烯与 α-烯烃共聚的催化剂。本发明的烯烃聚合催化剂具有良好的催化活性。