Kinetic investigation of propene polymerization with stopped-flow method

The stopped-flow technique, by which a quasi-living polymerization process can be performed within an extremely short period (ca. 0.2s), is a powerful method for kinetic investigation in Ziegler catalysis. Significant underst anding of many controversial problems was achieved, such as arguments conce rning the nonuniformity of the active sites, the accurate kinetic parameter s, the active sites formed in the different stages, the role of cocatalyst, the effects of hydrogen and electron donors, etc..