Diclosed 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.
                            披露了一种多核过渡
金属半茂
金属烯催化剂,其具有多核半茂
金属烯结构,其中周期表3至10族的过渡
金属连接到一个
环戊二烯基团或其衍
生物基团一侧,并且连接到另一侧具有多个结合位点的
酚或
酚胺化合物。这种茂
金属烯催化剂可用于生产具有优越的立体构型、高熔点和宽分子量分布的顺反式
苯乙烯聚合物,同时还需要少量的共催化剂。还公开了一种使用相同催化剂制备
苯乙烯聚合物的方法。