The surface properties of kaolinite were determined using density functional theory discrete variational method (DFT-DVM) and Gaussian 03 program. A SiO4 tetrah
Ansa-Cyclohexyl-bis(4,5,6,7-tertrahydro-1-indenyl) zirconium dichloride (5) was used as catalyst for propylene and ethylene polymerization together with methyl