2024-03-29T12:18:56Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00025084
2023-01-16T04:15:50Z
320:321:322
Orientational cross correlations between entangled branch polymers in primitive chain network simulations
Masubuchi, Yuichi
74803
Pandey, Ankita
74804
Amamoto, Yoshifumi
74805
Uneyama, Takashi
74806
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.
journal article
AIP Publishing
2017-11-14
application/pdf
JOURNAL OF CHEMICAL PHYSICS
18
147
184903
184903
http://doi.org/10.1063/1.5001960
http://hdl.handle.net/2237/27303
0021-9606
https://nagoya.repo.nii.ac.jp/record/25084/files/1_5001960.pdf
eng
https://doi.org/10.1063/1.5001960
Copyright 2017 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.The following article appeared in (Journal of Chemical Physics. v.147, n.18, 2017, p.184903) and may be found at (http://doi.org/10.1063/1.5001960).