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Commercial nitril-butadiene rubbers were comprehensively studied by GPC, DSC, TGA, phase contrast microscopy and surface free energy determination via Owens-Wendt-Rabel-Kiellble method. Specific features were found for molecular mass distribution, phase transitions in negative and positive temperature intervals, the character of supramolecular assembly and microblock distribution of functional groups in BNKS-18AN and BNKS-18AMN rubber brands. A set of differences in initial rubbers macromolecular characteristics was shown, as well as the evolution of the latter during mechanical activaction of BNKS-18AN and BNKS-18AMN rubber brands

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The properties of two groups of composite materials (CM) based on perfluorinated rubber (FFKM) «Neofton-N» with different contents of trivalent metal oxides: pyrogenic aluminum oxide (Alu C), hollow corundum microspheres (HCM-40) and nanodispersed powder yttrium oxide (Y2O3) were obtained and investigated,. The rheometric characteristics of CM cured with 2,2-bis(3-amino-4-hydroxyphenyl) hexafluoropropane (BOAP) and perfluorohexamethylene-bis-perfluorohexylimidoylamidine (DPIA-65) and their mechanical properties were determined. Thermogravimetric analysis was used to study their temperature parameters. The possibility of obtaining CM with a high level of properties, operable in the temperature range 250–330 °C, has been shown.