Development of High Functional Polyolefin by Utilizing Isomerization Polymerization Catalyzed by Palladium Complex

采用二亚胺钯配合物催化烯烃异构聚合，合成了具有密度和分布可控官能团的聚合物。二亚胺钯配合物促进非共轭二烯和三烯、烷基环戊烯和烯基环己烷的异构聚合，得到具有高度立体规则性的五元或六元环聚合物。改变单体中烷基的长度可以精确控制聚合物中环烷烃的密度和分布。三烯的异构化聚合使两个环戊烷沿聚合物链以交替方式具有不同的官能团。

Syntheses of polymers having functional groups with controlled density and distribution were conducted using isomerization polymerization of olefins catalyzed by diimine palladium complexes. The diimine palladium complexes promote isomerization polymerization of non-conjugated dienes and trienes, alkylcyclopentenes, and alkenylcyclohexanes to afford the polymers containing five- or six-membered rings with high stereoregularity. Changing the length of alkyl group in the monomer allows accurate control of the density and distribution of the cycloalkane groups in the polymer. Isomerization polymerization of trienes affords the polymers with two cyclopentanes having different functional groups in alternating manner along the polymer chain.