FIELD: oil and gas industry.
SUBSTANCE: here is disclosed application of polycarbonates produced by interaction of organic carbonate (A) of formula RO(CO)OR with aliphatic alcohol (B) and with one or several bi-atomic alcohols (B'); alcohols ROH are detached and one or several products of condensation (K) are formed; upon further inter-molecular interaction of products of condensation (K) ready product is generated. Also there is disclosed application of complex poly-ethers produced by interaction of aliphatic dicarboxylic acid (A2) or it derivative with monooleate of glycerine or monostearate of glycerine (B2) and triatomic alcohol (Cx); notably, molar ratio of hydroxyl groups to carboxyl groups or their derivatives is from 5:1 to 1:5.
EFFECT: disclosed hyper-branched polymers are ready available, do not require considerable expenditures for synthesis and are suitable for dewatering oil emulsions of any deposit.
7 cl, 2 tbl, 17 ex
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