A monocyclopentadienyl titanium complex containing 8-quinolinolato (QCpTiCl2) was synthesized. Its activities in ethylene polymerization at various Al/Ti molar
MnOx/Al2O3 and MnOx/ZrO2-Al2O3 catalysts were prepared by incipient wetness impregnation of Mn(CH3COO)2 on the corresponding supports, followed by the character