characterized. The properties of the corresponding nickel and palladium catalysts in ethylene polymerizations and copolymerizations were investigated. In the nickel system, significant reduction in polymer branching density was observed, while lower polymer branching densities, as well as a wider range of polar monomer substrates, were achieved in the palladium system. Control experiments and computational results
烯烃与极性官能化的共聚单体的过渡
金属催化共聚反应非常重要,也极富挑战性。为了解决这些共聚反应中遇到的一些困难,制定了第二配位策略。制备并表征了一系列带有含氮第二配位球的α-二
亚胺配体。研究了相应的
镍和
钯催化剂在
乙烯聚合和共聚中的性能。在
镍体系中,观察到聚合物支化密度的显着降低,而在
钯体系中获得了较低的聚合物支化密度,以及更广泛的极性单体基质。