FAN Zhi-qiang, FENG Lin-xian, YANG Shi-lin. PROPERTIES OF THE ACTIVE CENTERS ON TiCl4/MgCl2 CATALYSTS FOR OLEFIN POLYMERIZATION[J]. Acta Polymerica Sinica, 1993,(6):691-697.
FAN Zhi-qiang, FENG Lin-xian, YANG Shi-lin. PROPERTIES OF THE ACTIVE CENTERS ON TiCl4/MgCl2 CATALYSTS FOR OLEFIN POLYMERIZATION[J]. Acta Polymerica Sinica, 1993,(6):691-697.DOI:
The number of active centers of 1-octene polymerization systems catalyzed by TiCl4/Mg-Cl2-AlR3 was determined by quenching with acetyl chloride
and the effects of cocatalyst and organic electron donors on the polymerization rate
the number of active centers and the propagation rate constant were studied. Combining with the study of the polymer molecular weight distribution by a multi-peak fitting method
the presence of 3 or 4 kinds of active center with different properties was evidenced. It is found that electron donors can selectively change the properties of certain kinds of active center.