Copolymerization of Ethylene with Alpha-Olefins over Supported Titanium–Magnesium Catalysts Containing Titanium Compounds in Different Oxidation and Coordination States

Data were obtained on the copolymerization of ethylene with α-olefins over supported titanium–magnesium catalysts (TMC) prepared same magnesium dichloride support but differing in composition and oxidation state titanium. The kinetics 1-hexene TMC different compositions studied. produced ethylene–1-hexene copolymers, their molecular weight distribution, thermophysical characteristics, branching distribution presented. constants calculated. containing only Ti(II) compounds as active component exhibited increased copolymerizing ability compared to conventional TiCl4/MgCl2 catalyst Ti(III) component. In addition, an produces copolymers a more uniform distribution. It was shown that isolated ions could be used produce X-ray amorphous ethylene-propylene elastomers high yield.