Fibre Chemistry

, Volume 19, Issue 2, pp 107–111 | Cite as

Change in polymer supermolecular structure on heat-treatment of technical purpose polyester yarns

  • S. L. Pakshver
  • Z. P. Vysotskaya
  • É. M. Aizenshtein
Chemistry And Technology Of Man-Made Fibres


By use of low-angle and large-angle x-ray scattering methods on specimens of technical polyethylene terephthalate yarn, it has been shown that:

heat-treatment with additional stretching makes it possible to preserve both the size and the original orientation level of the ordered structural regions of the polymer, with a significant reduction in size and some reduction in orientation of the amorphous sections;

on heat-treatment with an assigned relaxation, the decrease in size of the amorphous sections and the degree of their disorientation are proportional to the assigned “negative stretch”;

if heat-treatment is conducted under isometric conditions, the size of the amorphous sections changes only slightly, but the mean orientation function remains unchanged.


Polymer Polyethylene Terephthalate Structural Region Orientation Function 
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Literature cited

  1. 1.
    V. B. Gupta and S. Kumar, J. Appl. Polymer Sci.,26, 1865–1905 (1981).Google Scholar
  2. 2.
    Z. P. Vysotskaya, M. I. Simonova, and É. M. Aizenshtein, in: Contemporary Problems and Methods of Preparing Synthetic Fibres with New Properties [in Russian], A. S. Chegolya et al. (eds.), VNIIVprokt, VNIISV, KaIinin, (1979), pp. 12–28.Google Scholar
  3. 3.
    S. L. Pakshver, S. S. Aleksandriiskii, and E. M. Aizenshtein, Khim. Volokna, No. 1, 43–44 (1983).Google Scholar
  4. 4.
    W. O. Statton, J. L. Koenig, and M. Hannon, J. Appl. Phys.,41, No. 11, 4290–4295 (1970).Google Scholar
  5. 5.
    W. O. Statton, J. Polymer Sci., A-2,10, No. 8, 1587–1592 (1972).Google Scholar
  6. 6.
    K. Sakurai, K. Miyasaka, and K. Ishikawa, Second International Symposium on Man-Made Fibres, Kalinin (1977), Preprints, Vol. 1, p. 252.Google Scholar
  7. 7.
    S. L. Pakshver, T. L. Baranova, É. M. Aizenshtein, et al., Khim. Volokna, No. 2, 37–39 (1984).Google Scholar
  8. 8.
    A. G. Korchagin, M. A. Martynov, et al., in: Synthesis, Properties, and Processing of Polyolefins [in Russian], ONPO “Plastopolimer,” Leningrad (1984).Google Scholar
  9. 9.
    S. N. Chvalun, V. S. Shirets, et al., Vysokomol. Soed., Ser. A,28, No. 1, 18–24 (1986).Google Scholar

Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • S. L. Pakshver
  • Z. P. Vysotskaya
  • É. M. Aizenshtein

There are no affiliations available

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