Living Copolymerization of Ethylene with Styrene Catalyzed by (Cyclopentadienyl)(ketimide)titanium(IV) Complex-MAO Catalyst System

摘要

Precise control over macromolecular structure and the resulting material properties is a central goal in synthetic polymer chemistry,and copolymerization is an important process that usually allows the alteration of the (physical,mechanical,and electronic) properties of a material through adjustment of the ratio of individual components.New synthetic methods for precise placement of the chemical functionality thus attract considerable attention,and transition metal catalyzed living polymerization is one of the best methods to prepare polymers with controlled monomer repeating units.