Extremely Narrow-Dispersed High Molecular Weight Polyethylene from Living Polymerization at Elevated Temperatures with o-F Substituted Ti Enolatoimines

With a new titanium imineenolato complex, ethylene is polymerized in an unprecedented living fashion affording a polymer with a high molecular weight (M n > 105 g mol−1) and an extremely narrow distribution (M w/M n 1.01) at the same time; the living character is also retained even at an elevated temperature of 75 °C, and blockcopolymers are accessible.