Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(7)

Published: May 14, 2024

In this contribution, a series of unsymmetric α‐diimine nickel complexes are synthesized. One side these is the 2,4‐dimethyl‐6‐diphenylmethylaniline unit, and steric effects tuned by changing another aniline unit. These have high catalytic activities in ethylene (>10 6 g mol −1 h ) 1‐octene (10 4 –10 5 polymerization, generating high‐molecular‐weight polyolefins ( M n > 10 with tunable branching densities (59–91/1000C). Steric polymerization temperature can significantly affect performance catalyst. Most importantly, catalysts different hindrances sensitivity. general, larger more sensitive to temperature. This may be due fact that rotation some chemical bonds blocked at low temperatures volume substituents, resulting significant

Language: Английский