FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing a block-copolymer. Method of producing a block copolymer of propylene involves bringing the catalyst into contact with propylene or propylene and α-olefin, other than propylene, and bringing the electron-donor compound, which is alcohol, into contact with the obtained product. Catalyst contains a solid catalyst component containing titanium, magnesium, halogen and an internal electron donor compound, an organoaluminium compound and a certain external electron-donor compound.
EFFECT: method of producing a block copolymer of propylene enables to obtain a copolymer of propylene, having excellent stereoregularity, stiffness and impact resistance, while achieving high polymerisation activity.
4 cl, 1 tbl, 10 ex
