Kinetic Manifestation of Active Centre Structure in Diene Polymerization Assisted by Lanthanide Catalytic Systems

The reactivity of active polymerization centres has been found to depend on the nature of the diene in the presence of which a lanthanide catalytic system had been prepared; this effect was assumed to be due to the existence of two reactive bonds, Ln–C and Ln–C–AI, in the active centre.