Synthesis and Ethylene Polymerization Behavior of a New Titanium Complex Having Two Imine–Phenoxy Chelate Ligands

Abstract A novel (N-benzylidene-2-hydroxy-3,5-di-t-butyl-aniline)2TiCl2 complex was synthesized and investigated for its potential as an ethylene polymerization catalyst in the presence of MAO or Ph3C+B-(C6F5)4/iBu3Al as a cocatalyst. Upon activation with Ph3C+B-(C6F5)4/iBu3Al, the complex displayed higher activities at higher temperatures, and the activity reached a very high value of 5784 kg-PE/mol-Ti·h at 75 °C under atmospheric pressure.