Recent advances on ?-diimine Ni and Pd complexes for catalyzed ethylene (Co)polymerization: A comprehensive review

?-Diimine Ni and Pd complexes are one of the most examined late-transition organometallics in application catalyzed ethylene (co)polymerization. These organometallic catalysts provide unique advantages particular opportunities to tailor architectures, composition, topology synthesized polymers through polymerization. Two decades after their initial discovery, they still drawing extensive attention both academia industry. More recently, researchers have studied effect structural modifications on ?-diimine catalytic behaviors This review highlights recent progress developments achieved last decade. The chain-walking mechanism as a behavior is also addressed. versatile synthesis ligands enables performance microstructures polyethylene. Correlations between tunes behaviors, polymer properties, copolymerization with polar monomers comparatively presented discussed. heterogenization study solid support for heterogeneous catalysis comprehensively summarized. broadly classified into four sections which includes i) coordination-insertion chemistry (co)polymerization, ii) modification ligand structure, iii) field polymerization, iv) properties polymers, followed by short summary outlook potential studies applications.