Studies on TiCl4/Al2Et3Cl3/Y Zeolite High Effective Catalytic System for Copolymerization of Ethylene and Propylene
WANG Li, FENG Lin-Xian, XU Jim-Ting, YANG Shi-Lin, FENG Zi-Xian, XIAO Fei
Chem. J. Chinese Universities . 1993, (4): 591 -592 .