CAI Xiao-ping, GONG Zhi, WANG Fo-song, Zhu Xing-hao, LI Xin-hua. KINETICS OF POLYMERIZATION OF ISOPRENE WITH Nd(Opri)2Cl-AlEt3 SOLUBLE CATALYST SYSTEM Ⅱ. DETERMINATION OF KINETIC PARAMETERS[J]. Acta Polymerica Sinica, 1995,(6):653-657.
CAI Xiao-ping, GONG Zhi, WANG Fo-song, Zhu Xing-hao, LI Xin-hua. KINETICS OF POLYMERIZATION OF ISOPRENE WITH Nd(Opri)2Cl-AlEt3 SOLUBLE CATALYST SYSTEM Ⅱ. DETERMINATION OF KINETIC PARAMETERS[J]. Acta Polymerica Sinica, 1995,(6):653-657.DOI:
he main kinetic parameters such as the concentration of active propagating chain ([C*])
the efficiency of catalyst (ELCU) and the rate constant of absolute propagahon (kp) as well as the average lifetime of growing chain (τ). have been determined at 30 ℃
40 ℃ and 50 ℃. The propagation activation energy of isoprene polymerization has been found to be 57.4 kJ/mol in heptane. The experimental results showed that the catalytic activity for the polymerization of isoprene is dominated by the rate constant of absolute propagation in this system.