FIELD: chemistry.
SUBSTANCE: invention relates to solid hydrocarbon-insoluble component of catalyst for olefin polymerisation and to method of polymerisation in presence of said catalyst component. Catalyst component contains magnesium, titanium, halogen and additionally internal donor of electrons, which has structure [R1-O-C(O)-O-]xR2, where R1 independently in each case represents aliphatic or aromatic hydrocarbon or substituted hydrocarbon group, containing from 1 to 20 carbon atoms; x equals 2-4; R2 represents aliphatic or aromatic hydrocarbon or substituted hydrocarbon group, containing from 1 to 20 carbon atoms, on condition that in the shortest chain, connecting first R1-O-C(O)-O- group and second R1-O-C(O)-O- group, 2 atoms are contained.
EFFECT: high efficiency of catalyst work and obtaining polymer with improved and various properties.
14 cl, 4 tbl, 13 ex
