The conformational probe method was applied to determine the temperatures of secondary relaxation transitions in polysulphone and polycarbonate before and after supercritical carbon dioxide treatment. The investigations demonstrated the decrease of temperatures of secondary relaxation transitions in polysulphone and polycarbonate. The influence of supercritical fluid treatment on the difference of enthalpy for conformationally-inhomogeneous compounds in polymeric matrices was analyzed.
вторичные релаксационные переходы, ИК-фурье спектры, сверхкритический диоксид углерода, secondary relaxation transitions, FTIR spectra, supercritical carbon dioxide
1. M. Mulder, Vvedenie v membrannuyu tehnologiyu, per. s angl. Mir, Moskva, 1999. 513 s.
2. D.I. Kamalova, A.B. Remizov, M.H. Salahov, Konformacionnye zondy v izuchenii lokal'noy podvizhnosti polimerov. Fizmatkniga, Moskva, 2008. 160 s.
3. S.G. Kazarian, N.H. Brantley, B.L. West, M.F. Vincent, C.A. Eckert, Applied Spectroscopy, 51, 4, 491-494 (1997).
4. I.A. Ronova, V.A. Medvedeva, L.N. Nikitin, E. Hamchiuk, M. Bruma, E.A. Sokolova, M.Yu. Yablokov, I.A. Chmutin, Struktura i dinamika molekulyarnyh sistem: sb. statey. Ufa: IFMK UNC RAN, vyp. XVII, ch. 1, 146-155 (2010).
5. I.A. Ronova, Struktura i dinamika molekulyarnyh sistem: sb. statey. Yoshkar-Ola: MarGTU, vyp. XVI, ch. 1, 40-45 (2009).
6. Vnutrennee vraschenie molekul, pod red. V.Dzh. Orvill-Tomasa. Mir, Moskva, 1977. 510 s.
7. F.M. Gumerov, A.N. Sabirzyanov, G.I. Gumerova, Sub- i sverhkriticheskie flyuidy v processah pererabotki polimerov. Kazan': FEN, 2007. 336 s.
8. G.M. Bartenev, S.Ya. Frenkel', Fizika polimerov. Himiya, Leningrad, 1990. 432 s.
