Zhu Xing-hao, Qiao Yu-qin, Han Dong-ni. DILATOMETRIC STUDIES ON THE POLYMERIZATION OF ISOPRENE BY LANTHANIDE CATALYST[J]. Acta Polymerica Sinica, 1984,(3):207-213.
Zhu Xing-hao, Qiao Yu-qin, Han Dong-ni. DILATOMETRIC STUDIES ON THE POLYMERIZATION OF ISOPRENE BY LANTHANIDE CATALYST[J]. Acta Polymerica Sinica, 1984,(3):207-213.DOI:
The kinetics of the polymerization of isoprene in hexane in the presence of Ln naph-thenate-Al(i-Bu)3-Al2Et3Cl3 catalyst was studied in a specially designed dilatometer. The polymerization showed to be Ist-order in monomer and 1.75 th order in catalyst
respectively. In a typical polymerization
the concentration of propagating chain has been calculated to be 3×10-6mol/l. Thus
the efficiency of lanthanide catalyst is 2.8% and the rate constant of absolute propagations is 411/mol/sec (50℃).