A ligand useful to form a metallocene olefin polymerization catalyst comprises formula (I), wherein at least R3 and R4 are substituents having at least a bulk of a t-butyl group and, optionally, wherein R1 or R2 may be a bulky substituent group.
一种用于形成
金属茂咯烯催化剂的
配体包括公式(I),其中至少R3和R4是具有至少一个叔丁基团体积的取代基,而且可选地,R1或R2可能是一个笨重的取代基团体。