Polymer Mechanics

, Volume 12, Issue 4, pp 540–545 | Cite as

Effect of uv irradiation on the mobility of the molecular chains in polyethylene

  • V. A. Belyi
  • V. F. Stepanov
  • L. S. Koretskaya
  • É. G. Rozantsev


1. A decrease in the mobility of molecular chains in polyethylene after UV irradiation was discovered by the spin probe method. This decrease is proportional to the time of irradiation.

2. A discontinuity lacking in unirradiated polyethylene was found on the curve for the logarithm of the rotational correlation time of the spin probe in polyethylene as a function of the inverse temperature. It was shown that the nature of the discontinuity is related to a "thawing out" of the rotational motion of the chains in the crystalline phase.


Polyethylene Crystalline Phase Correlation Time Rotational Motion Probe Method 
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Literature cited

  1. 1.
    E. N. Matveeva, A. A. Kozodoi, and A. L. Gol'denberg, "The aging of polyolefins. The comparative light resistance of polyolefins," Plast. Massy, No. 4, 7–11 (1963).Google Scholar
  2. 2.
    F. D. Zhitetskaya, T. S. But, N. L. Sirotkina, M. A. Myagkova, B. S. Fridman, and N. N. Vasil'eva, "The photoaging of polyethylene films," Plast. Massy, No. 3, 15–16 (1968).Google Scholar
  3. 3.
    L. S. Koretskaya, "A study of the lifetime of polymer coatings under atmospheric conditions," Author's Abstract of Candidate's Dissertation, Riga (1970).Google Scholar
  4. 4.
    Yu. A. Ershov, S. I. Kuzina, and M. B. Neiman, "The mechanism of light aging and light stabilization of polymers," Usp. Khim.,38, No. 2, 289–320 (1969).Google Scholar
  5. 5.
    K. K. Polyakova and V. I. Paima, The Technology and Equipment for Applying Powder Polymer Coatings [in Russian], Moscow (1972).Google Scholar
  6. 6.
    A. T. Sanzharovskii, "Methods of calculating internal stresses in polymer paint and lacquer coatings," Dokl. Akad. Nauk SSSR,135, No. 1, 58–60 (1960).Google Scholar
  7. 7.
    A. A. Tager, The Physical Chemistry of Polymers [in Russian], 2nd ed., Moscow (1968).Google Scholar
  8. 8.
    M. V. Vol'kenshtein, The Configurational Statistics of Polymer Chains [in Russian], Moscow-Leningrad (1959).Google Scholar
  9. 9.
    V. B. Stryukov, É. G. Rozantsev, A. I. Kashlinskii, N. G. Mal'tseva, and I. F. Tibanov, "A study of the spin probe method of oriented polymers," Dokl. Akad. Nauk SSSR,190, No. 4, 895–897 (1970).Google Scholar
  10. 10.
    A. M. Vasserman, A. L. Buchachenko, A. L. Kovarskii, and M. B. Neiman, "A study of the molecular motion in polymers by the paramagnetic probe method," Vysokomol. Soedin., Ser. A,10, No. 8, 1930–1936 (1968).Google Scholar
  11. 11.
    É. G. Rozantsev, Free Iminoxy Radicals [in Russian], Moscow (1970).Google Scholar
  12. 12.
    D. Kivelson, "Theory of ESR linewidths of free radicals," J. Chem. Phys.,33, No. 4, 1094–1106 (1960).Google Scholar
  13. 13.
    V. B. Stryukov, Stable Radicals in Chemical Physics. Advances in Life, Science, and Technology [in Russian], Izd. Khimiya, Moscow (1971).Google Scholar
  14. 14.
    V. B. Stryukov and É. G. Rozantsev, "An ESR study of the rotational mobility of the iminoxy radical in polymers," Vysokomol. Soedin., Ser. A,10, No. 3, 626–632 (1968).Google Scholar
  15. 15.
    G. P. Rabold, "Spin-probe studies. II. Applications to polymer characterization," J. Polym. Sci., A-1,7, No. 5, 1203–1223 (1969).Google Scholar
  16. 16.
    J. A. Focher and F. P. Reding, "The Relationship between structure and major properties," in: Crystalline Olefin Polymers (edited by R. A. V. Raff and K. W. Doak), Vol. 2, Wiley (1964).Google Scholar
  17. 17.
    M. P. Grunewedge, J. Schuyer, J. Schmidt, and K. A. F. Tudjman, "Absorption and relaxation spectra of polyolefins," in: Crystalline Olefin Polymers (edited by R. A. V. Raff and K. W. Doak), Vol. 2, Wiley (1964).Google Scholar
  18. 18.
    L. S. Koretskaya, V. F. Stepanov, T. I. Tkachenko, and É. G. Il'ina, "The increase of optical anisotropy in polyethylene spherulites," Mekh. Polim., No. 2, 343–344 (1973).Google Scholar
  19. 19.
    R. Stein, "Optical methods in the study of polymers," in: Modern Methods of the Study of Polymers [Russian translation], Moscow (1966), pp. 131–168.Google Scholar
  20. 20.
    P. H. Geil, Polymer Single Crystals, Wiley (1963).Google Scholar
  21. 21.
    S. V. Bann, "The structure of polyethylene," in: Polyethylene and Other Polyolefins [in Russian], Moscow (1964), pp. 431–497.Google Scholar

Copyright information

© Plenum Publishing Corporation 1977

Authors and Affiliations

  • V. A. Belyi
  • V. F. Stepanov
  • L. S. Koretskaya
  • É. G. Rozantsev

There are no affiliations available

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