Disclosed is a multinuclear transition metal half metallocene catalyst having a multinuclear half metallocene structure in which a transition metal of groups 3 to 10 on periodic table is connected to a cycloalkandienyl group or its derivative group on a side and also connected to phenol or phenolamine compound having a plurality of binding sites on another side. The metallocene catalyst is useful to produce syndiotatic styrene polymer having superior steroreguality, high melting point and broad molecular weight distribution with high activity together with a small amount of a cocatalyst. Further disclosed is a method for preparing styrene polymers using the same catalyst.
本发明公开了一种多核过渡
金属半茂基催化剂,其具有多核半茂基结构,在该结构中,周期表3至10族的过渡
金属连接在一侧的环烷基烯基或其衍
生物基上,另一侧连接着具有多个结合位点的
苯酚或
苯酚胺化合物。该茂基催化剂可用于生产具有卓越的立体规整性、高熔点和宽分子量分布的顺反
噻吩聚合物,同时与少量的协同催化剂一起具有高活性。本发明还公开了一种使用该催化剂制备
苯乙烯聚合物的方法。