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Frequency Dependence of the Dynamic Heat Capacity at the Melting Temperature of Polyethylene Crystals

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Abstract

The dynamic heat capacity of polyethylene was measured in the heating process over two decades of the modulating frequency using the light heating modulated temperature DSC. The dynamic heat capacity exhibited clear frequency dependence from 95°C to the end of the melting of the crystals. Frequency dependence of this work was compared with that of the quasi-isothermal measurement. The relaxation time estimated in this work was much shorter than that of the quasi-isothermal measurement. It was found that notable heat exchange between the sample and reference sides occurred between 120 and 135°C. Frequency dependence of the heat exchange was studied.

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References

  1. E. A. Turi, Thermal Characterization of Polymeric Materials, Academic Press, New York 1997.

    Google Scholar 

  2. P. S. Gill, S. R. Sauerbrunn and M. Reading, J. Thermal Anal., 40 (1993) 931.

    Google Scholar 

  3. M. Reading, D. Elliott and V. L. Hill, J. Thermal Anal., 40 (1993) 949.

    Google Scholar 

  4. M. Nishikawa and Y. Saruyama, Thermochim. Acta, 267 (1995) 75.

    Google Scholar 

  5. Y. Saruyama, J. Therm. Anal. Cal., 54 (1998) 687.

    Google Scholar 

  6. Y. Saruyama, Thermochim. Acta, 330 (1999) 101.

    Google Scholar 

  7. A. Toda, C. Tomita and M. Hikosaka, J. Therm. Anal. Cal., 54 (1998) 623.

    Google Scholar 

  8. A. Toda, C. Tomita, M. Hikosaka and Y. Saruyama, Polymer, 39 (1998) 5093.

    Google Scholar 

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Authors and Affiliations

  1. Department of Polymer Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan

    Y. Saruyama

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  1. Y. Saruyama
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Saruyama, Y. Frequency Dependence of the Dynamic Heat Capacity at the Melting Temperature of Polyethylene Crystals. Journal of Thermal Analysis and Calorimetry 59, 271–278 (2000). https://doi.org/10.1023/A:1010156500754

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  • DOI: https://doi.org/10.1023/A:1010156500754

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