Orientational Cross-Correlation in Entangled Binary Blends in Primitive Chain Network Simulations

Yuichi Masubuchi, Yoshifumi Amamoto

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

It has been reported from the molecular dynamics simulation that the orientational cross-correlation (OCC) has a significant contribution to the relaxation modulus of polymers. Remarkably, the OCC contribution has been found to be universal with respect to the molecular weight and even to its distribution for unentangled polymers [ Cao; Likhtman Phys. Rev. Lett. 2010, 104, 207801 ]. In this study, the OCC in entangled bidisperse polymer melts was evaluated by multichain slip-link simulations. The obtained OCC was similar to that in monodisperse systems in its intensity. On the other hand, the time development reflected the motion of short and long chains, and consequently the universality was not observed when the molecular weights of two components are well-separated and the long chain fraction is small. Comparison to the results obtained by the other slip-link model suggests that the cross-correlation is induced by the force balance and the fluctuation at the entanglement.

本文言語英語
ページ(範囲)9258-9265
ページ数8
ジャーナルMacromolecules
49
23
DOI
出版ステータス出版済み - 12 13 2016
外部発表はい

All Science Journal Classification (ASJC) codes

  • 有機化学
  • ポリマーおよびプラスチック
  • 無機化学
  • 材料化学

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