Controlled synthesis of stereoblock polypropylene. New trends in the development of elastomers

Abstract

The review generalises published data on the synthesis of elastomeric stereoblock polypropylene, a representative of thermoelastoplastics, which are prepared by random or block copolymerisation of various co-monomers and are widely used in the manufacture of diverse mechanical rubber goods. New unique applications of metallocene and post-metallocene catalysts in the design of polyolefin elastomers with a broad spectrum of physicomechanical characteristics are discussed. Particular attention is given to modern homogeneous catalyst systems based on Group IVB element metallocene complexes, which ensure highly efficient synthesis of polypropylene elastomers with various stereoblock structures. Data on the specific features of the structure and properties of the elastomeric stereoblock polypropylene are analysed. The bibliography includes 160 references.