Pyridine-imine nickel catalysts bearing different N-aryl/imine substituents were systematically studied for ethylene polymerization to produce low-molecular-weight and branched polyethylenes.
A series of palladium and nickel catalysts bearing heteroaryl-aryl moieties were prepared and applied to ethylene polymerization and copolymerization reactions.
A series of biaryl-based phosphine-sulfonate nickel catalysts are shown to mediate efficient ethylene polymerization and copolymerization with polar-functionalized norbornene comonomers.