Design of Thermally Stable Amine-Imine Nickel Catalyst Precursors for Living Polymerization of Ethylene: Effect of Ligand Substituents on Catalytic Behavior and Polymer Properties
Nickel complexes bearing amine–imineligands with various backbone substituents were synthesized and employed as ethylenepolymerizationcatalysts on activation with Et2AlCl. The substituent on the backbone carbon atom of the amine moiety is decisive for the living nature of ethylenepolymerization. A bulky amine–iminenickelprecursor with a tert‐butyl group on the carbon atom of the amine group can