Studying The Copolymerization of Ethylene-Propylene Using Ziegler-Natta Catalyst

The copolymerization of ethylene and higher α-olefines produced in catalytic polymerization are important products [1,2]. The development of catalyst systems with highefficiency is the key to rapid commercial developments. Since the development of Ziegler-Natta catalysts in the 1950s,intensive efforts have been devoted to studies ofethylene/propylene copolymeriation by titanium-based heterogeneous catalysts, including TiCl3/AlR3 systems and supported Ti/Mg systems [3-6].