A novel nickel (II) complex based on a cyclam-cored generation-one dendrimeric salicylaldimine ligand and its application as a catalyst precursor in norbornene polymerization: Comparative study with some other first generation DAB-polypropyleneimine metal

► In this paper we report on the preparation of a new cyclam cored metallodendrimer of nickel. ► When activated with MAO a highly active norbornene polymerization catalyst is obtained. ► The cyclam based metallodendrimer shows the best catalyst activity at relatively low Al:Ni ratios. ► High molecular weight polymers with low PDI's are obtained.