FIELD: chemistry.
SUBSTANCE: invention relates to polymerisation catalysts, specifically to a polymerisation catalyst of formula (I)
,
in which at least one M1 or M2 is selected from Ni(II) and Ni(III)-X. Value of radicals is given in the claims. Also disclosed are a method of reacting carbon dioxide with epoxide, reaction of epoxide and anhydride, reaction of lactide and/or lactone and polymer product.
EFFECT: disclosed catalysts have high activity and selectivity, particularly with respect to epoxides.
57 cl, 2 tbl, 9 ex, 3 dwg
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