ansa-complexes, containing 2-isopropyl-4-arylindenyl and 2-methyl-4-aryltetrahydroindacenyl fragments, have been synthesized. These complexes demonstrate better catalytic activity, stereoselectivty, and polymer molecular weight capability in propylene homo- and copolymerization in comparison to analogues without a tetrahydroindacenyl fragment.
一组非对称的双-
茚基
锆森达2 -bridged柄-complexes,含有2-异丙基-4- arylindenyl和2-甲基-4- aryltetrahydroindacenyl片段,已经被合成。与没有四氢
茚并片段的类似物相比,这些配合物在
丙烯均聚和共聚中表现出更好的催化活性,立体选择性和聚合物分子量。