FIELD: physicochemical methods.
SUBSTANCE: aqueous emulsion contains (i) 52.5 to 75% by weight of one or several peroxides (diacyl peroxides and peroxy dicarbonates); (ii) 0.001 to 2.5% by weight of hydrolyzed (hydrolysis degree 45-80%) polyvinylacetate, and optionally a stabilizing amount of nonionic surfactants with hydrophilic-lipophilic balance value above 10 and selected from alkylene oxide block copolymers, ethoxylated fatty alcohols, and ethoxylated fatty acids; and (iii) antifreeze. Emulsion is characterized by low chemical oxygen demand and is safe and stable on storage being useful as free radical source in vinyl chloride polymerization process.
EFFECT: achieved safety and stability of multifunctional emulsion.
8 cl, 3 tbl
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