TRANSITION METAL COMPLEXES, CATALYSTS COMPOSITION CONTAINING THE SAME AND OLEFIN POLYMERIZATION THEIRWITH

摘要

Provided is a transition metal complex, which has a phenylene bridge to allow easy access of monomers, maintains a pentagonal ring structure stably and permits production of ultralow-density polyolefin copolymer. The transition metal complex is represented by the following formula 1. In the formula 1, each of R1 and R2 independently represents H, C1-C20 alkyl, aryl, silyl, C1-C20 alkenyl, alkylaryl or arylalkyl, or hydrocarbyl-substituted Group 14 metalloid radical, wherein R1 and R2 may form a ring by way of C1-C20 alkyl or aryl-containing alkylidene radical; R4 represents H, halogen, C1-C20 alkyl or aryl, wherein two R4s may form a folded ring structure; R3 represents a C1-C20 alkyl sulfonyl, arylsulfonyl or silylsulfonyl radical, C1-C20 alkylcarbonyl, arylcarbonyl or silylcarbonyl radical, C1-C20 alkyl carboxy or aryl carboxy radical, or C1-C20 alkyl phosphonyl or aryl phosphonyl radical; M is a transition metal of Group 4; each of Q1 and Q2 independently represents halogen, C1-C20 alkyl or arylamido radical, C1-C20 alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical, or C1-C20 alkylidene radical.