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Analysis of the configurational heat capacity of polystyrene and its monomer and oligomer above the glass transition temperature

Polymer Journal volume 54, pages 33–39 (2022)Cite this article

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Abstract

In this study, we investigated the functions that reproduce the configurational heat capacity (Cconfig) above the glass transition temperature for polystyrene (PS), polyisobutylene (PIB), and their oligomers. The results show that Cconfig can be well reproduced using the power and logarithmic functions based on Landau theory, which explains the vicinity of the critical point. The power and logarithmic functions had four and three fitting parameters, respectively. The error ranges were ~±2% for PS and ±5% for PIB.

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Acknowledgements

The authors would like to thank Enago (www.enago.jp) for the English language review.

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Authors and Affiliations

  1. School of Science and Engineering, Kokushikan University, 4-28-1 Setagaya, Setagaya-ku, Tokyo, 154-8515, Japan

    Eri Nishiyama

  2. Division of Physics, Institute of Liberal Education, Nihon University School of Medicine, 30-1 Ohyaguchikami-chou, Itabashi-ku, Tokyo, 173-8610, Japan

    Marika Yokota

  3. Graduate School of Engineering, Chiba Institute of Technology, 2-1-1 Shibazono, Narashino, Chiba, 275-0023, Japan

    Itaru Tsukushi

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  1. Eri Nishiyama
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Correspondence to Itaru Tsukushi.

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Nishiyama, E., Yokota, M. & Tsukushi, I. Analysis of the configurational heat capacity of polystyrene and its monomer and oligomer above the glass transition temperature. Polym J 54, 33–39 (2022). https://doi.org/10.1038/s41428-021-00554-3

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