attached to the imino nitrogen are described. These complexes were evaluated as catalyst precursors for ethylene polymerization under relatively mild reaction conditions. Unlike N-aryl substituted pyridylimine-type analogues, these complexes when activated with methylaluminoxane (MAO) were capable of producing highly linear polyethylene with high molecular weights, the values of which can be tuned from
描述了具有长链烷基连接到亚
氨基氮上的新型单核和双核
吡啶并
嘧啶型
钯(II)配合物的合成和表征。这些络合物被评价为在相对温和的反应条件下用于
乙烯聚合的催化剂前体。与N-芳基取代的
吡啶嘧啶类类似物不同,这些配合物在被甲基铝氧烷(MAO)活化后能够生产具有高分子量的高度线性聚
乙烯,其值可通过变化从6×10 5调节至1×10 6。聚合温度和Al与Pd的比例。