FIELD: technological processes.
SUBSTANCE: invention relates to methods of producing branched polymers. Disclosed is a method of producing a branched polymer containing a (C=C)-(C=C)-CO group, involving mixing at least one monofunctional monomer containing one polymerized carbon-carbon double bond per monomer; at least one multifunctional monomer containing at least two polymerized double carbon-carbon bonds per monomer, and at least one chain transfer agent containing aldehyde or ketone; formation of polymer from mixture by free-radical polymerization reaction and hydrolysis of obtained polymer. Corresponding branched polymer and its use as a dispersant in polymerization of vinyl chloride in suspension are also disclosed.
EFFECT: polymer obtained by the disclosed method enables to control the size of the formed polyvinyl chloride particles and prevents their coagulation without giving the obtained polymer yellowness.
37 cl, 13 tbl, 38 ex
