Synthesis and properties of chlorinated high-carboxylated latexes

The research is devoted to the development of new aqueous dispersions based on vinylidene chloride copolymers (VDC), which can become an alternative to imported polychloroprene latexes. The process of preparation of chlorinated latexes by emulsion inoculum copolymerization of VDX with other monomers is described, which allows to create materials with different properties. Special attention is paid to the study of properties of vinylidene chloride-containing latex used as an inoculum for further synthesis stages. The results of analysis of copolymer composition depending on monomer conversion and data on changes in colloidal characteristics of latexes at different degree of neutralization of carboxyl groups are presented. Butadiene-nitrile and isoprene-nitrile vinylidene chloride-containing heteropolymer latexes were prepared in the presence of inoculum latex particles. The results obtained show that the proposed approach is promising for the creation of domestic materials capable of competing with foreign analogs.