Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Improved properties of molecular composite of nitrile rubber and poly (p-phenylene terephthalamide) by blending with poly (vinyl chloride)

  • 75 Accesses

  • 8 Citations


Nitrile rubber (NBR) was reinforced by poly(p-phenylene terephthalamide) (PPTA) with a coprecipitation method from a common solvent of them. PPTA was converted to N-sodium PPTA with sodium hydride in DMSO, forming homogeneous solution. DMF dissolves NBR. Both solutions were blended to form an isotropic solution. The precipitant was NBR reinforced by PPTA which was regenerated from N-sodium PPTA at coagulation as reported previously. The molecular composite thus obtained was mill-blended with poly(vinyl chloride) (PVC) in order to enhance solvent resistant property. The vulcanized composite of NBR/PVC reinforced by PPTA showed higher modulus, higher strength and more improved solvent resistance than the gum stock and the black stock of NBR/PVC. The properties of the molecular composite containing 5phr PPTA found approximately comparable to those of the black stock of NBR/PVC with 30–40phr ISAF carbon black.

This is a preview of subscription content, log in to check access.


  1. 1.

    D. C. Prevorsek, “Polymer Liquid Crystals,” Ed. by A. Cifferi, W. R. Krigbaum and R. R. Meyer, Academic Press, New York, 329 (1982).

  2. 2.

    M. Takayanagi, Japan Patent Application, 131436 (1977).

  3. 3.

    T. E. Helminak, U. S. Patent, 902525 (1978).

  4. 4.

    M. Takayanagi, T. Ogata, M. Morikawa and T. Kai, J. Macromol. Sci., -Phys., B17, 591 (1981).

  5. 5.

    M. Takayanagi, Pure & Appl. Chem., 81 (1983).

  6. 6.

    M. Takayanagi and K. Goto, Rept. Prog. Polym. Phys., Japan, 25, 319 (1982).

  7. 7.

    M. Takayanagi and K. Goto, “Molecular Characterization of Composite Interfaces,” Ed. by H. Ishida and G. Kumar, Plenum, in press.

  8. 8.

    G. Kraus, J. Appl. Polym. Sci., 7, 861 (1963).

  9. 9.

    T. I. Bair, P. W. Morgan and F. L. Killman, Macromolecules, 10, 1396 (1977).

  10. 10.

    M. Arpin and C. Starazielle, Polymer, 18, 591 (1977).

  11. 11.

    M. Takayanagi and T. Katayose, J. Polym. Sci., Polym. Chem. Ed., 19, 1133 (1981).

Download references

Author information

Additional information

On Leave from Japan synthetic Rubber Co., Ltd., Higashi-yurigaoka, Assao-ku, Kawasaki 215, Japan

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Takayanagi, M., Goto, K. Improved properties of molecular composite of nitrile rubber and poly (p-phenylene terephthalamide) by blending with poly (vinyl chloride). Polymer Bulletin 13, 35–42 (1985). https://doi.org/10.1007/BF00264238

Download citation


  • DMSO
  • Hydride
  • Carbon Black
  • Homogeneous Solution
  • Vinyl Chloride