Copolymerizations of ethylene with 1-hexene over MgCl2/SiO2 Bi-supported titanium catalysts: Effect of SiO2 on active site distribution

Hegang Ren, Min Yang, Yujin Liu, Binyuan Liu*, Jiayan Qu, Yanji Wang, and Il Kim* Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China Institute of Green Chemical Technology, School of Chemical Engineering&Technology, Hebei University of Technology, Tianjin 300130, P. R. China The WCU Center for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University, Busan 609-735, Korea