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Journal of thermal analysis

, Volume 49, Issue 1, pp 139–142 | Cite as

Application of the light heating dynamic DSC to polymeric materials

  • Y. Saruyama
Polymers

Abstract

Light heating dynamic DSC was used to study the melting transition of polyethylene. The results show that melting and crystallization are different phenomena from each other in terms of the complex heat capacity. Frequency dependence of the complex heat capacity was examined from 0.01 Hz to 0.2 Hz. It is found that at the lowest frequency the phase of the complex heat capacity exceeds π/2 radians. Thermodynamic considerations were made for the large phase of the complex heat capacity.

Keywords

dynamic DSC frequency dependence light heating melting polyethylene 

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References

  1. 1.
    M. Nishikawa and Y. Saruyama, Thermochim. Acta, 267 (1995) 75.CrossRefGoogle Scholar
  2. 2.
    Y. Saruyama, Thermochim. Acta, 283 (1996) 157.CrossRefGoogle Scholar
  3. 3.
    P. S. Gill, S. R. Sauerbrunn and M. Reading, J. Thermal Anal., 40 (1993) 931.CrossRefGoogle Scholar
  4. 4.
    M. Reading, D. Elliott and V. L. Hill, J. Thermal Anal., 40 (1993) 949.CrossRefGoogle Scholar
  5. 5.
    G. Van Assche, A. Van Hemelrijck, H. Rahier and B. Van Mele, Thermochim. Acta, 268 (1995) 121.CrossRefGoogle Scholar
  6. 6.
    B. Wunderlich, Y. Jin and A. Boller, Thermochim. Acta, 238 (1994) 277.CrossRefGoogle Scholar
  7. 7.
    A. Boller, Y. Jin and B. Wunderlich, J. Thermal Anal., 42 (1994) 307.CrossRefGoogle Scholar
  8. 8.
    Y. Saruyama, submitted to Thermochim. Acta.Google Scholar
  9. 9.
    A. Toda, T. Oda, M. Hikosaka and Y. Saruyama, Polymer, 38 (1997) 231.CrossRefGoogle Scholar
  10. 10.
    M. Reading, A. Luget and R. Wilson, Thermochim. Acta, 238 (1994) 295.CrossRefGoogle Scholar
  11. 11.
    N. O. Birge, Phys. Rev., B34 (1986) 1631.Google Scholar
  12. 12.
    A. Toda, T. Oda, M. Hikosaka and Y. Saruyama, submitted to Thermochim. Acta.Google Scholar

Copyright information

© Akadémiai Kiadó 1997

Authors and Affiliations

  • Y. Saruyama
    • 1
  1. 1.Faculty of Textile ScienceKyoto Institute of TechnologyKyotoJapan

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