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Relaxation properties of butadiene-styrene copolymers

  • A. Havránek
  • J. Pospíšil
  • J. Buriánek
  • J. Honskus
  • J. Nedbal
Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 78)

Abstract

Dynamic mechanical, dielectric, luminescent, and thermodynamic relaxation spectra of butadiene-styrene copolymers are compared. Dynamic mechanical results were obtained by torsion pendulum measurements, dielectric results by thermally stimulated depolarization current (TSDC) method. Thermostimulated luminescence (TSL) and differential thermal analysis (DTA) were used in the luminescence and thermodynamic cases, respectively. The variations of the relaxation spectra with the copolymer composition (block or statistical, styrene content, 1,4 or 1,2-addition butadiene) and, especially, the possibilities of the comparison of different relaxation spectra as a tool for analysis of the structural origin of the observed spectral peaks are discussed.

Key words

Butadiene-styrene copolymers viscoelasticity luminescence  termostimulated currents DTA 

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References

  1. 1.
    Zimola B, Havránek A (1981) Plasty a kaučuk 18:337Google Scholar
  2. 2.
    Bakule R, Nedbal J, Štrof P (1986) In: Sedláček B (ed) Morphology of Polymers. Walter de Gruyter, Berlin, p 197Google Scholar
  3. 3.
    Pospíšil J, Havránek A (1986) In: Sedláček B (ed) Morphology of Polymers. Walter de Gruyter, Berlin, p 399Google Scholar
  4. 4.
    Saltman WM (ed) (1977) The Stereo Rubbers. Wiley, New York, p 592Google Scholar
  5. 5.
    Pospíšil J, Havránek A, Tale IA (1985) In: Sedláček B (ed) Optics of Dynamic Phenomena and Processes in Marcomolecular Systems. Walter de Gruyter, Berlin, p 245Google Scholar
  6. 6.
    Tkaczyk S, Swiatek A, Kwiatkovska A (1988) Progr Colloid Polym Sci 78:136CrossRefGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1998

Authors and Affiliations

  • A. Havránek
    • 1
    • 2
  • J. Pospíšil
    • 1
    • 2
  • J. Buriánek
    • 1
    • 2
  • J. Honskus
    • 1
    • 2
  • J. Nedbal
    • 1
    • 2
  1. 1.Faculty of Mathematics and PhysicsCharles UniversityPragueCzechoslovakia
  2. 2.Department of Polymer PhysicsMFF UKPraha 8Czechoslovakia

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