FIELD: chemistry.
SUBSTANCE: description is given of a method of obtaining a fluoropolymer, containing nitrile terminal groups. The method involves free radical polymerisation of one or more fluorinated monomers in the presence of a salt, containing a nitrile group, or a pseudo-halogen compound, containing a nitrile group. Description is also given of a method of obtaining a fluoro-elastomer composition, a method of obtaining fluoro-elastomer and a solid fluoro-elastomer, containing nitrile groups at both ends, with formula: NCX-(Rf)-XCN, where X=O or S, and Rf is a bivalent fluoro-elastomer chain.
EFFECT: design of an efficient method of obtaining a fluoro-elastomer, containing nitrile terminal groups.
11 cl, 6 ex
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