SYNTHESIS OF FUNCTIONALIZED POLYMERS FROM WASTE CONTAINING ELASTOMERS BY DEVULCANIZATION Russian patent published in 2024 - IPC C08J11/10 C08J11/18 C08J11/22 C08L17/00 

FIELD: polymers.

SUBSTANCE: invention relates to a method for synthesizing polymers by devulcanization from waste containing elastomers, as well as to a functionalized elastomer, a polymer composition including polymers and oligomers obtained by this method, and the use of functionalized elastomers as thermoplastic elastomers or elastomers for biomedical use. This method includes: a) interaction of waste containing elastomers with a solvent in the presence of a devulcanizing agent, b) heating the mixture obtained in step a) at a temperature of from 20 to 250°C for a period from 15 minutes to 24 hours. A compound of the formula is used as a devulcanizing agent,

where the values of R and R′ are specified in clause 1 of the claims, and R, R′ or both are different from the hydrogen atom. The functionalized elastomer is a compound of the formula

or .

EFFECT: presented method for the synthesis of polymers by devulcanization of waste containing elastomers provides a high degree of devulcanization, as well as regulation of the microstructure of the resulting polymers and, in addition, makes it possible to synthesize functionalized polymers.

12 cl, 13 tbl, 8 ex