HU Jing-yu, PAN En-li, ZHOU Chang-yu. KINETIC STUDY ON THE POLYMERIZATION OF BUTADIENE WITH LnCl3-C2H5OH-AlR3 CATALYSTS Ⅲ.The Kinetics of the Polymerization with NdCl3-C2H5OH-AlR3 Catalyst[J]. Acta Polymerica Sinica, 1985,(3):167-172.
HU Jing-yu, PAN En-li, ZHOU Chang-yu. KINETIC STUDY ON THE POLYMERIZATION OF BUTADIENE WITH LnCl3-C2H5OH-AlR3 CATALYSTS Ⅲ.The Kinetics of the Polymerization with NdCl3-C2H5OH-AlR3 Catalyst[J]. Acta Polymerica Sinica, 1985,(3):167-172.DOI:
The number of active centers and reaction rate constants in the polymerization system of NdCl3-C2H5OH-AlR3-butadiene have been determined by means of tritiated alcohol quenching and kinetic methods. The experimental results show that the number of active centers in this polymerization system lies in the range of 0.5-2.8×10-2mol/ mol Nd with respect to two kinds of aluminium alkyls used. In the investigated range the propagation rate constant does not depend on the nature of AlR3 and polymerization conditions except polymerization temperature
while the rate constant of chain transfer is affected markedly by variations of polymerization conditions.