Skip to main content
SpringerLink
Log in

On the α-relaxation in bulk polyoxymethylene

  • Papers
  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Values quoted forΔH α, the activation energy of the high temperatureα-relaxation in polyoxymethylene (POM), range from 20 to 92 kcal mol−1. This paper seeks to rationalize the discrepancy by remeasuringΔH α using time-temperature superposition of torsional creep and dynamic compliances for a POM specimen annealed at 160° C. Superposition of loss compliance curvesJ″ (ω, T) is possible over the range 20 to 120° C but creep compliance curvesJ(t, T) fail to superpose above about 70° C. The creep anomaly is explained in terms of the McCrum-Morris reduction equations in which the unrelaxed complianceJ U T increases with temperature more rapidly than the relaxed complianceJ R T. The activation energyΔH α has a constant value of 21±1 kcal mol−1 below about 70° C. Above about 70° C,ΔH α increases steadily up to 33±2 kcal mol−1 at 120° C.

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

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. N. G. McCrum, B. E. Read andG. Williams, “Anelastic and Dielectric Effects in Polymeric Solids” (Wiley, New York, 1967).

    Google Scholar 

  2. Y. S. Papir andE. Baer,Mater. Sci. Eng. 8 (1971) 310.

    Article  CAS  Google Scholar 

  3. H. Thurn, Festschr. Carl Wurster, BASF, Ludwigshafen, 1960, p. 321.

  4. Y. Ishida, M. Matsuo, M. Ito, M. Yoshino, F. Irie andM. Takayanagi,Kolloid. Z. 174 (1961) 162.

    Article  CAS  Google Scholar 

  5. N. G. McCrum,J. Polymer Sci. 54 (1961) 561.

    Article  CAS  Google Scholar 

  6. B. E. Read andG. Williams,Polymer 2 (1961) 239.

    Article  CAS  Google Scholar 

  7. M. Takayanagi,Mem. Fac. Eng., Kyushu Univ. 13 (1963) 41.

    Google Scholar 

  8. K. Arisawa, K. Tsuge andY. Wada,Reports Progr. Polymer Phys. Japan 6 (1963) 151.

    Google Scholar 

  9. Idem, Japan. J. Appl. Phys. 4 (1965) 138.

    Article  CAS  Google Scholar 

  10. M. Takayanagi, K. Neki, A. Nagai andS. Minami,Zairyo 14 (1965) 343.

    CAS  Google Scholar 

  11. K. Miki, Y. Yokokawa, K. Hikichi andJ. Furuichi,Japan. J. Appl. Phys. 5 (1966) 818.

    Article  CAS  Google Scholar 

  12. K. Miki, K. Hikichi andM. Kaneko,ibid 6 (1967) 931.

    Article  CAS  Google Scholar 

  13. H. Leaderman,Textile Res. J. 11 (1941) 171;A. V. Tobolsky andR. D. Andrews,J. Chem. Phys. 13 (1945) 3.

    CAS  Google Scholar 

  14. J. D. Ferry, In “Viscoelastic Properties of Polymers” 2nd Edn. (Wiley, New York, 1970).

    Google Scholar 

  15. M. L. Williams, R. F. Landel andJ. D. Ferry,J. Amer. Chem. Soc. 77 (1955) 3701.

    Article  CAS  Google Scholar 

  16. N. G. McCrum andE. L. Morris,Proc. Roy. Soc. London A281 (1964) 258.

    Google Scholar 

  17. E. R. Fitzgerald, L. D. Grandine andJ. D. Ferry,J. Appl. Phys. 24 (1953) 650, 911.

    Article  CAS  Google Scholar 

  18. Y. Wada, H. Hirose, T. Asano andS. Fukutomi,J. Phys. Soc. Japan 14 (1959) 1064.

    Article  CAS  Google Scholar 

  19. N. G. McCrum,J. Polymer Sci. A2 (1964) 3951.

    Google Scholar 

  20. K. Okano, In “Solid State Physics”, Vol. 14 (edited by F. Seitz and D. Turnbull) (Academic Press, New York, 1963).

    Google Scholar 

  21. C. P. Buckley andN. G. McCrum,J. Polymer Sci. A-2 9 (1971) 369.

    Article  CAS  Google Scholar 

  22. F. J. Balta-Calleja andA. Peterlin,Makromol. chem. 141 (1971) 91.

    Article  CAS  Google Scholar 

  23. C. F. Hammer, T. A. Koch andJ. F. Whitney,J. Appl. Polymer Phys. 1 (1959) 169.

    Article  CAS  Google Scholar 

  24. J. Majer andJ. Stejný,Chem. Prumysl (Prague)12/37 (1962) 53.

    Google Scholar 

  25. S. Timoshenko andJ. N. Goodier, In “Theory of Elasticity”, 2nd edn. (Wiley, New York, 1951).

    Google Scholar 

  26. S. Turner,British Plastics, November (1964) p. 26.

  27. L. C. E. Struik,Rheol. Acta 6 (1967) 119.

    Article  CAS  Google Scholar 

  28. L. C. E. Struik andF. R. Schwarzl,ibid 8 (1969) 134.

    Article  Google Scholar 

  29. K. Nagamatsu, T. Yoshitomi andT. Takemoto,J. Colloid Sci. 13 (1958) 257.

    Article  CAS  Google Scholar 

  30. N. G. McCrum andE. L. Morris,Proc. Roy. Soc. London A292 (1966) 506.

    Google Scholar 

  31. A. W. Thornton,J. Appl. Phys. 41 (1970) 4347.

    Article  CAS  Google Scholar 

  32. W. Sommer,Kolloid Z. 167 (1959) 97.

    Article  CAS  Google Scholar 

  33. D. G. Fesko andN. W. Tschoegl,J. Polymer Sci. C 35 (1971) 51.

    Google Scholar 

  34. N. G. McCrum, private communication.

  35. B. E. Read andG. Williams,Trans. Faraday Soc. 57 (1961) 1979.

    Article  CAS  Google Scholar 

  36. K. Tsuge, H. Enjoji, H. Terada, Y. Ozawa andY. Wada,Japan. J. Appl. Phys. 1 (1962) 270.

    Article  CAS  Google Scholar 

  37. A. Peterlin andE. W. Fischer,Z. Phys. 159 (1960) 272.

    Article  CAS  Google Scholar 

  38. K. O'Leary andP. H. Geil,J. Macromol. Sci. (Phys.)B1 (1967) 147.

    Google Scholar 

  39. B. Crist,J. Polymer Sci. (Phys. Ed.)11 (1973) 635.

    CAS  Google Scholar 

  40. E. W. Fischer, Y. Nukushima andY. Itoh,J. Polymer Sci. B 3 (1965) 383.

    Article  Google Scholar 

  41. J. D. Hoffman, G. Williams andE. Passaglia,J. Polymer Sci. C 14 (1966) 173.

    Google Scholar 

Download references

Author information

Author notes

  1. R. W. Gray

    Present address: Department of Electronics and Electrical Engineering, The University, Glasgow, Scotland

Authors and Affiliations

  1. Department of Engineering Science, Oxford University, Parks Road, Oxford, UK

    R. W. Gray

Authors
  1. R. W. Gray
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Gray, R.W. On the α-relaxation in bulk polyoxymethylene. J Mater Sci 8, 1673–1689 (1973). https://doi.org/10.1007/BF02403516

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02403516

Keywords

Search

Navigation