Phenoxy–Ether Ligated Ti Complexes for the Polymerization of Ethylene

✍ Scribed by Yasuhiko Suzuki; Yoshihisa Inoue; Hidetsugu Tanaka; Terunori Fujita

• Book ID: 102492448
• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 122 KB
• Volume: 25
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200300115

✦ Synopsis

Abstract

Summary: Bis(phenoxy–ether) Ti complexes were investigated as ethylene polymerization catalysts. The complexes, combined with __i__Bu~3~Al/Ph~3~CB(C~6~F~5~)~4~ or methylaluminoxane (MAO) cocatalysts, can be highly active single‐site catalysts, which display activities ( turnover frequency, max. 2 065 min^−1^) comparable with that of a highly active bis(phenoxy–imine) Ti complex/MAO system, and provide very high molecular weight polyethylenes ($\overline M _{\rm v}$ 2 040 000–5 420 000) at 25 °C under atmospheric pressure.

Synthesis of polyethylene using bis(phenoxy–ether) Ti complexes, an example of which is shown.

magnified imageSynthesis of polyethylene using bis(phenoxy–ether) Ti complexes, an example of which is shown.