Orientational cross correlations between entangled branch polymers in primitive chain network simulations

Yuichi Masubuchi, Ankita Pandey, Yoshifumi Amamoto, Takashi Uneyama

研究成果: Contribution to journalArticle査読

7 被引用数 (Scopus)


Although it has not been frequently discussed, contributions of the orientational cross-correlation (OCC) between entangled polymers are not negligible in the relaxation modulus. In the present study, OCC contributions were investigated for 4- and 6-arm star-branched and H-branched polymers by means of multi-chain slip-link simulations. Owing to the molecular-level description of the simulation, the segment orientation was traced separately for each molecule as well as each subchain composing the molecules. Then, the OCC was calculated between different molecules and different subchains. The results revealed that the amount of OCC between different molecules is virtually identical to that of linear polymers regardless of the branching structure. The OCC between constituent subchains of the same molecule is significantly smaller than the OCC between different molecules, although its intensity and time-dependent behavior depend on the branching structure as well as the molecular weight. These results lend support to the single-chain models given that the OCC effects are embedded into the stress-optical coefficient, which is independent of the branching structure.

ジャーナルJournal of Chemical Physics
出版ステータス出版済み - 11 14 2017

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 物理化学および理論化学


「Orientational cross correlations between entangled branch polymers in primitive chain network simulations」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。