Chemical and Environmental Engineering College,Harbin University of Science and Technology, Harbin 150080, China;
School of Chemical Engineering and Technology,China University of Mining and Technology, Xuzhou 221008, China;
School of Chemical Engineering and Technology,China University of Mining and Technology, Xuzhou 221008, China;
regioselectivity; salicyladiminato-Pd(II) catalyst; propylene polymerization; density functional theory method (DFT);