FIELD: chemistry.
SUBSTANCE: present invention relates to catalysis and polymer chemistry, particularly to a solid component of a titanium catalyst, an olefin polymerisation catalyst and an olefin polymerisation method. Solid component of the titanium catalyst contains titanium, magnesium, halogen and a cyclic compound comprising several ester groups and represented by formula (1), in which each of n1-n4 is independently integer from 0 to 2, m is 0 or 1 and x is integer from 0 to 10, wherein the relation m + x ≥ 1. In compound (1), each of R1 and R2 independently represents a substituted or unsubstituted hydrocarbon group containing from 1 to 20 carbon atoms; each of R3-R16 and R is independently a hydrogen atom, a substituted or unsubstituted hydrocarbon group containing from 1 to 20 carbon atoms or a halogen atom; hydrogen atom, carbon atom or both R1-R16 and R are optionally substituted with at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom, a phosphorus atom, a halogen atom and a silicon atom; two or more selected from R3-R16 and R are optionally bonded to each other to form a monocyclic or polycyclic ring, and adjacent substitutes are optionally directly bonded to form a multiple bond. Ca, Cb and Cc are carbon atoms, and in a carbon-carbon bond of a cyclic structure formed from Ca, Cb and Cc, R, bonded to an adjacent carbon, are optionally directly bonded to each other to form a multiple bond, and A is a single bond or a divalent linking group having chain of 1 to 3 atoms between two free radicals.
EFFECT: creation of a solid component of a titanium catalyst, an olefin polymerisation catalyst and an olefin polymerisation method, which enable to obtain an olefin polymer having higher stereoregularity and better molecular weight distribution than that of conventional polymers.
13 cl, 8 dwg, 2 tbl, 33 ex
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