論文

査読有り
2017年10月27日

Modeling induction period of polymer crystallization

Polymer (United Kingdom)
  • Hiroshi Yokota
  • ,
  • Toshihiro Kawakatsu

129
開始ページ
189
終了ページ
200
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.polymer.2017.09.022
出版者・発行元
Elsevier Ltd

We study the possibility of the spinodal decomposition in the induction period of the polymer crystallization. This phenomenon was first reported in an X-ray scattering experiment, and has still been controversial due to various experiments and theories that support or deny the phenomenon. In this article, we explain the condition for the spinodal decomposition to occur in polymer melts by deriving a Ginzburg-Landau model of the free energy as a functional of the density and the orientation of the segments, where we introduce the excluded volume and the nematic interactions through a combination of the random phase approximation and the transfer matrix for the polymer conformation. We show that, upon elimination of the degrees of freedom of the orientation, the nematic interaction reduces to an effective attraction whose strength increases with the stiffness of the polymer chain. Such an attraction induces spinodal decomposition especially for stiff polymer chain case.

リンク情報
DOI
https://doi.org/10.1016/j.polymer.2017.09.022
ID情報
  • DOI : 10.1016/j.polymer.2017.09.022
  • ISSN : 0032-3861
  • ORCIDのPut Code : 37213472
  • SCOPUS ID : 85030709982

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