Research article

SYNTHESIS OF GRAFT COPOLYMERS OF SYNTHETIC RUBBERS WITH ACRYLIC MONOMERS INITIATED BY POTASSIUM PERSULFATE

Saodat Khodjaeva*, Adham Rafikov, Abdusattor Ibragimov, Sardor Karimov

Online First: December 18, 2022


Carried out graft copolymerization of synthetic rubbers with acrylic acid and methyl methacrylate in a solution of a mixture of benzene and dimethylformamide, in the presence of potassium persulfate as an initiator. The main parameters of grafting are determined: the degree and efficiency of grafting, the value of which depends on the nature of the rubber and monomer. The highest grafting efficiency (over 60%) was achieved in the case of grafting methyl methacrylate to polychloroprene rubber. Based on the results of FTIR spectroscopic studies, the scheme of the reaction between the polychloroprene macromolecule and potassium persulfate with the formation of active centers of a radical nature was determined.Thermogravimetry and differential scanning calorimetry were used to determine the thermal properties of the synthesized copolymers.

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