Herald of Technological University Herald of Technological University ВЕСТНИК ТЕХНОЛОГИЧЕСКОГО УНИВЕРСИТЕТА 3034-4689 62295 ХИМИЯ, ТЕХНОЛОГИЯ И ИСПОЛЬЗОВАНИЕ ПОЛИМЕРОВ ХИМИЯ, ТЕХНОЛОГИЯ И ИСПОЛЬЗОВАНИЕ ПОЛИМЕРОВ BLENDS OF POLY(3-HYDROXYBUTYRATE) WITH AN ETHYLENE-PROPYLENE COPOLYMER Ol'khov A A Ol'khov A A Iordanski A L Iordanski A L Yaroshevskaya H M Yaroshevskaya H M Zaikov G E Zaikov G E gezaikov@yahoo.com Semenovl Institute of Chemical Physics, Russian Academy of Sciences ru Semenovl Institute of Chemical Physics, Russian Academy of Sciences ru Semenovl Institute of Chemical Physics, Russian Academy of Sciences ru Semenovl Institute of Chemical Physics, Russian Academy of Sciences ru Kazan National Research Technological University ru Kazan National Research Technological University ru Kazan National Research Technological University ru Kazan National Research Technological University ru 01 08 2025 01 08 2025 17 1 172 174 20 04 2023 https://vestniktu.ru/en/nauka/article/62295/view

Методами ДСК и ИК спектроскопии исследованы смеси поли-з-гидроксибутирата и этилен-пропиленового каучука. Показано, что при эквивалентных соотношениях компонентов наблюдается инверсия фаз. В смеси степень кристалличности поли-з-гидроксибутирата снижается. Деградация поли-з-гидроксибутирата в смесях начинается при более низких температурах по сравнению с чистым полимером и термоокислительная активность этилен-пропиленового сополимера в смеси ниже по сравнению с чистым сополимером.

The methods of DSC and IR spectroscopy were used to study various blends of poly(3-hydroxybutyrate) with ethylene-propylene copolymer rubber (EP). When the weight fractions of the initial polymers are equal, a phase inversion takes place; as the blends are enriched with EP, the degree of crystallinity of poly(3-hydroxybutyrate) decreases. In blends, the degradation of poly(3-hydroxybutyrate) begins at a lower temperature compared to the pure polymer and the thermooxidative activity of the ethylene-propylene copolymer in the blend decreases in comparison with the pure copolymer.

 poly(3-hydroxybutyrate) ethylene-propylene copolymer blends слова: поли-з-гидроксибутират этилен-пропиленовый сополимер смеси poly(3-hydroxybutyrate) ethylene-propylene copolymer blends слова: поли-з-гидроксибутират этилен-пропиленовый сополимер смеси

Seebach, D., Brunner, A., Bachmann, B.M., Hoffman, Т., Kuhnle, F.N.M., and Lengweier, U.D., Biopolymers and Biooligomers of (R)-3-Hydroxyalkanoic Acids: Contribution of Synthetic Organic Chemists, Zurich: Edgenos-sische Technicshe Hochschule, 1996. Seebach, D., Brunner, A., Bachmann, B.M., Hoffman, T., Kuhnle, F.N.M., and Lengweier, U.D., Biopolymers and Biooligomers of (R)-3-Hydroxyalkanoic Acids: Contribution of Synthetic Organic Chemists, Zurich: Edgenos-sische Technicshe Hochschule, 1996. Ol'khov, A.A., Vlasov, S.V., Shibryaeva, L.S., Litvi-nov, I.A., Tarasova, N.A., Kosenko, R.Yu., and lordan-skii, A.L., Polymer Science, Ser. A, 2000, vol. 42, no. 4, p. 447. Ol'khov, A.A., Vlasov, S.V., Shibryaeva, L.S., Litvi-nov, I.A., Tarasova, N.A., Kosenko, R.Yu., and lordan-skii, A.L., Polymer Science, Ser. A, 2000, vol. 42, no. 4, p. 447. Elliot, A., Infra-Red Spectra and Structure of Organic Long-Chain Polymers, London: Edward Arnold, 1969. Elliot, A., Infra-Red Spectra and Structure of Organic Long-Chain Polymers, London: Edward Arnold, 1969. Lipatov, Yu.S., Mezhfaznye yavleniya v polimerakh (Interphase Phenomena in Polymers), Kiev: Naukova Dumka, 1980. Lipatov, Yu.S., Mezhfaznye yavleniya v polimerakh (Interphase Phenomena in Polymers), Kiev: Naukova Dumka, 1980. Labeek, G., Vorenkamp, E.J., and Schouten, A.J., Mac-romolecules, 1995, vol. 28, no. 6, p. 2023. Labeek, G., Vorenkamp, E.J., and Schouten, A.J., Mac-romolecules, 1995, vol. 28, no. 6, p. 2023. Painter, PC, Coleman, M.M., and Koenig, J.L., The Theory of Vibrational Spectroscopy and Its Application to Polymeric Materials, New York: Wiley, 1982. Painter, PC, Coleman, M.M., and Koenig, J.L., The Theory of Vibrational Spectroscopy and Its Application to Polymeric Materials, New York: Wiley, 1982.