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Moscow University Physics Bulletin

, Volume 68, Issue 3, pp 225–230 | Cite as

Lamellar phases of polymers with unusual physical and mechanical properties

  • A. R. Khamidullin
  • A. N. Chuvyrov
  • Yu. A. Lebedev
  • V. D. Sitdikov
Article
  • 54 Downloads

Abstract

Structural transitions that occur in polymers subjected to simple uniaxial tensile deformation are described for the first time. The behavior of folded nanocrystallites with initial sizes of 28 × 28 × 17 nm is most interesting. Their thicknesses strongly decrease upon deformation (from 17 nm to less than 10 nm), whereas the longitudinal sizes change only slightly. This gradual flattening of nanoclusters leads to their dislocation melting (as an intermediate stage of the phase transitions predicted by Kosterlitz and Thouless). It is shown by the methods of pole figures and atomic-force microscopy that screw dislocations are spontaneously formed in the region of elastic-plastic deformation to decelerate the first-order phase transition of melting type and that the polymer forms a new lamellar spatially inhomogeneous phase with unusual physical and mechanical properties.

Keywords

semicrystalline polymer thermoplastic elastomers syndiotactic 1,2-polybutadiene “milk phase” (mphstress-strain curve pole figure 

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References

  1. 1.
    D. Choi and J. L. White, Polym. Eng. Sci. 42, 1648 (2002).CrossRefGoogle Scholar
  2. 2.
    L. Poussin, Y. A. Bertin, J. Parisot, and C. Brassy, Polymer 39, 4261 (1998).CrossRefGoogle Scholar
  3. 3.
    G. R. Strobl, The Physics of Polymers: Concepts for Understanding Their Structures and Behavior (Springer, Berlin, 2007).Google Scholar
  4. 4.
    J. R. Hirsch and P. T. Wang, Textures Microstruct. 13, 101 (1991).CrossRefGoogle Scholar
  5. 5.
    A. Peterlin, J. Mater. Sci. 6, 490 (1971).ADSCrossRefGoogle Scholar
  6. 6.
    L. Lin and A. S. Argon, J. Mater. Sci. 29, 294 (1994).ADSCrossRefGoogle Scholar
  7. 7.
    L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 7: Elasticity Theory (Nauka, Moscow, 1987; Butterworth-Heinemann, Oxford, 1995).Google Scholar
  8. 8.
    A. N. Chuvyrov, R. R. Kinzyabulatov, and Yu. A. Lebedev, Dokl. Akad. Nauk 437(5), 659 (2011).Google Scholar
  9. 9.
    A. N. Chuvyrov, R. R. Kinzyabulatov, and Yu. A. Lebedev, New Materials and Nanotechnology, Vol. 18 (Moscow, 2010) [in Russian].Google Scholar
  10. 10.
    U. F. Kocks, C. N. Tome, and H. R. Wenk, Texture and Anisotropy: Preferred Orientations in Polycrystals and their Effect on Materials Properties (Cambridge, UK, 1998).zbMATHGoogle Scholar
  11. 11.
    A. I. Kitaigorodskii, X-Ray Diffraction Analysis of Fine-Grained and Amorphous Solids (GITTL, Moscow, 1952) [in Russian].Google Scholar
  12. 12.
    Solver RPO SPM Instruction Manual (2010).Google Scholar
  13. 13.
    K. B. Anil and L. S. Howard, Handbook of Elastomers (CRC, New York, 2000).Google Scholar
  14. 14.
    G. Natta and P. Corradini, J. Polym. Sci. 20, 251 (1956).ADSCrossRefGoogle Scholar
  15. 15.
    Y. Chen, D. Yang, Y. Hu, and X. Zhang, Cryst. Growth Des. 4(1), 117 (2004).CrossRefGoogle Scholar
  16. 16.
    Modern Crystallography, Vol. 1, Ed. by B. K. Vainshtein, A. A. Chernov, and L. A. Shuvalov (Nauka, Moscow, 1979; Springer, Berlin, 2003).Google Scholar
  17. 17.
    R. M. Mazitov, A. N. Chuvyrov, and V. S. Balitskii, Dokl. Akad. Nauk SSSR 247(6), 1475 (1979).Google Scholar
  18. 18.
    J. M. Kosterlitz and D. J. Thouless, J. Phys. 6, 1181 (1973).ADSGoogle Scholar
  19. 19.
    R. P. Kambou, J. Polym. Sci., Part D: Macromol. Rev. 7, 1 (1973).CrossRefGoogle Scholar
  20. 20.
    A. L. Volynskii and N. F. Bakeev, Highly Dispersed Aligned State of Polymers (Khimiya, Moscow, 1984) [in Russian].Google Scholar

Copyright information

© Allerton Press, Inc. 2013

Authors and Affiliations

  • A. R. Khamidullin
    • 1
  • A. N. Chuvyrov
    • 1
  • Yu. A. Lebedev
    • 2
  • V. D. Sitdikov
    • 3
  1. 1.Bashkir State UniversityUfaRussia
  2. 2.Institute of Physics of Molecules and Crystals, Ufa Research CenterRussian Academy of SciencesUfaRussia
  3. 3.Ufa State Aviation Technical UniversityUfaRussia

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