Kinetic and stereospecific manifestations of a set of active centres in butadiene polymerization under the action of a catalytic system based on NdCl3·3TBP

The unusual dependence of butadiene conversion and polymer microstructure on the ratio Mg/Nd or Al/Nd during the polymerization of butadiene under the action of NdCl₃·3TBP–AlBu3i –MgBu(i-C₈H₁₇) can be explained by the formation of a set of active centres in the catalytic system.