FIELD: chemistry.
SUBSTANCE: invention relates to production of alternating copolymers of olefins with carbon monoxide through catalytic copolymerisation in suspended copolymerisation conditions. Described is a method of preparing a supported catalyst for copolymerisation of olefins with carbon monoxide, involving synthesis of a palladium complex by reacting palladium (II) salts, a bidentate ligand Y^Y of general formula R1R2YRYR3R4, where Y=N or P; R=CnH2n, where n=2-4; R1-R4=-C6H5 or -C6H4OCH3 groups, and hydrogen acid HX with pKa≤2, selected from acids CH3COOH, CF3COOH, HBF4, CH3C6H4SO3H, with subsequent addition to catalytic solution of the carrier, where the mixture of the catalytic solution and polymer or inorganic carrier is stirred for 0.5-2 hours in an inert atmosphere of a medium containing methanol and toluene, with subsequent removal of the liquid phase until obtaining a solid desired product. Also described is a method for copolymerisation of olefins with carbon monoxide at temperature 20-95° and pressure of comonomers of 0.1-5 MPa. The copolymerisation process is carried out in the presence of a supported catalyst prepared using the above described method in suspended copolymerisation conditions in a medium of hydrocarbons with addition of 5-7 wt %, methanol or alcohol medium.
EFFECT: increased output of product per gram of carrier; possibility of using different media in suspended copolymerisation conditions; the catalyst is used as a solid end product and does not lose its activity for a long period of time.
8 cl, 19 ex, 1 tbl
