Application of the random break theory to thermal degradation of polymers

  • A. A. Koptelov
  • Yu. M. Milekhin
  • Yu. N. Baranets
Macromolecular Compounds and Polymeric Materials


Thermal degradation of high-molecular-weight polyethylene is considered from the standpoint of the random break theory. The quantitative estimations made indicate that the vaporization conditions realized in the experiment exert a decisive effect on the total conversion rate. The heat of vaporization of macromolecular fragments formed by cleavage of C-C bonds amounts to approximately a half of the total thermal effect recorded by thermal analysis. The results obtained make it possible to rationalize some phenomena that were observed experimentally but have not been satisfactorily interpreted previously, and also to predict the influence of experimental conditions on the course of thermal degradation of polymers.


Apply Chemistry Thermal Degradation Vaporization Condition Isothermal Mode Random Break 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Wendlandt, W.W., Thermal Methods of Analysis, New York: Interscience, 1964.Google Scholar
  2. 2.
    Shlenskii, O.F., Afanas’ev, N.V., and Shashkov, A.G., Termorazrushenie materialov (Thermal Degradation of Materials), Moscow: Energoatomizdat, 1996.Google Scholar
  3. 3.
    Polezhaev, Yu.V. and Yurevich, F.B., Teplovaya zashchita (Thermal Protection), Moscow: Energiya, 1976.Google Scholar
  4. 4.
    Shteinberg, A.S., Bystrye reaktsii v energoemkikh sistemakh (Fast Reactions in High-Energy-Content Systems), Moscow: Fizmatgiz, 2006.Google Scholar
  5. 5.
    Barzykin, V.V., Fiz. Goren. Vzryva, 1973, vol. 9, no. 1, pp. 37–54.Google Scholar
  6. 6.
    Koptelov, A.A., Milekhin, Yu.M., and Gusev, S.A., Dokl. Ross. Akad. Nauk, 2007, vol. 416, no. 4, pp. 496–501.Google Scholar
  7. 7.
    Arnold, M., Veress, G.E., Paulik, J., and Paulik, F., Anal. Chim. Acta, 1981, vol. 124, no. 2, pp. 341–350.CrossRefGoogle Scholar
  8. 8.
    Madorsky, S.L., Thermal Degradation of Organic Polymers, New York: Interscience, 1964.Google Scholar
  9. 9.
    Frederick, W.J. and Mentzer, C.C., J. Appl. Polym. Sci., 1975, vol. 19, no. 7, pp. 1799–1804.CrossRefGoogle Scholar
  10. 10.
    Koptelov, I.A. and Karyazov, S.V., Plast. Massy, 2008, no. 7, pp. 24–28.Google Scholar
  11. 11.
    Koptelov, A.A., Milekhin, Yu.M., and Shlenskii, O.F., Vysokomol. Soedin., Ser. A, 2005, vol. 47, no. 9, pp. 1628–1634.Google Scholar
  12. 12.
    Papkov, V.S. and Slonimskii, G.L., Vysokomol. Soedin., 1966, vol. 8, no. 1, pp. 80–87.Google Scholar
  13. 13.
    Saito, O., The Radiation Chemistry of Macromolecules, Dole, M., Ed., New York: Academic, 1972–1973. Translated under the title Radiatsionnaya khimiya makromolekul, Moscow: Atomizdat, 1978, pp. 205–238.Google Scholar
  14. 14.
    Sawada, H., Thermodynamics of Polymerization, New York: Dekker, 1976.Google Scholar
  15. 15.
    Kireev, V.A.,. Metody prakticheskikh raschetov v termodinamike khimisheskikh reaktsii (Methods of Practical Calculations in Thermodynamics of Chemical Reactions), Moscow: Khimiya, 1975.Google Scholar
  16. 16.
    Pavlov, B.A. and Terent’ev, A.P., Kurs organicheskoi khimii (Course of Organic Chemistry), Moscow: Khimiya, 1965.Google Scholar
  17. 17.
    McCombie, C.W., Problems in Thermodynamics and Statistical Physics, Landsberg, P.T., Ed., London: Pion, 1971. Translated under the title Zadachi po termodinamike i statisticheskoi fi zike, Moscow: Mir, 1974, pp. 505–516.Google Scholar
  18. 18.
    Dudley, M.A., Smith, D.A., and Youren, J.W., in Thermal Analysis, New York: Academic, 1979, vol. 1, pp. 643–650.Google Scholar
  19. 19.
    Zelenev, Yu.V., Koptelov, A.A., and Shlenskii, O.F., Plast. Massy, 2000, no. 10, pp. 24–27.Google Scholar
  20. 20.
    Koptelov, A.A. and Karyazov, S.V., Dokl. Ross. Akad. Nauk, 2003, vol. 389, no. 5, pp. 643–647.Google Scholar
  21. 21.
    Fizicheskie velichiny: Spravochnik (Physical Quantities: Handbook), Grigor’ev, I.S. and Melikhov, E.Z., Eds., Moscow: Energoatomizdat, 1991.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • A. A. Koptelov
    • 1
  • Yu. M. Milekhin
    • 1
  • Yu. N. Baranets
    • 1
  1. 1.Soyuz Federal Center for Binary TechnologiesDzerzhinskii, Moscow oblastRussia

Personalised recommendations