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Primitive chain network simulations for H-polymers under fast shear
http://hdl.handle.net/2237/00032344
http://hdl.handle.net/2237/00032344904348e0-f2e2-4fc5-837a-7921c2dfdace
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SoftMatter2020 (978.2 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-06-10 | |||||
| タイトル | ||||||
| タイトル | Primitive chain network simulations for H-polymers under fast shear | |||||
| 言語 | en | |||||
| 著者 |
Masubuchi, Yuichi
× Masubuchi, Yuichi× Ianniruberto, Giovanni× Marrucci, Giuseppe |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Branchpoint Withdrawal (BPW) has been recognized as one of the important molecular mechanisms for the description of the dynamics of entangled branched polymers under fast flows. However, the relation to the other known molecular mechanisms has not been fully elucidated yet. In this study we performed primitive chain network (i.e., multi-chain slip-link) Brownian simulations for a melt of a well-characterized monodisperse polystyrene H-polymer, for which the linear viscoelasticity and shear viscosity growth curves at several shear rates are available in the literature. After confirming the consistency of the simulations with the rheological data, we used the simulations to analyze the molecular motion in detail. The results reveal that molecular tumbling occurs in branched polymers just as in linear ones, and that it is accelerated by BPW. Furthermore, BPW not only mitigates backbone stretch, as expected, but also arm stretch. However, because the transient startup viscosity is anyhow dominated by chain stretch dynamics rather than by molecular tumbling, our results rationalize the fact that pom–pom theories successfully ignore tumbling in shear flows. | |||||
| 言語 | en | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | ファイル公開：2021/01/28 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Royal Society of Chemistry | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1039/C9SM01971E | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 1744-683X | |||||
| 書誌情報 |
en : Soft Matter 巻 16, 号 4, p. 1056-1065, 発行日 2020-01-28 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
