Thermally stable C2-Symmetric α-Diimine Nickel Precatalysts for ethylene polymerization: semicrystalline to amorphous PE with high tensile and elastic properties

Two sets of C 2 -symmetric α-diimine nickel complexes—nickel bromide and nickel chloride—were investigated to simultaneously regulate chain walking, chain transfer, and polymer microstructure in the synthesis of polyethylene elastomers.