Topological Interaction between Loop Structures in Polymer Networks and the Nonlinear Rubber Elasticity
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- Hirayama Naomi
- Institute of Industrial Science, University of Tokyo
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- Tsurusaki Kyoichi
- Chemical Engineering Division, Kanagawa Industrial Technology Center
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We numerically examine the nonlinear rubber elasticity of topologically constrained polymer networks. We propose a simple and effective model based on Graessley and Pearson's topological model (GP model) for describing the topological effect. The main point is to take account of a nonequilibrium effect in the synthesis process of the polymer network. We introduce a new parameter γ to describe entropic contributions from the entanglement of polymer loops, which may be determined from the structural characteristics of the sample. The model is evaluated in the light of experimental data under uniaxial and biaxial deformations. As a result, our model exhibits uniaxial behaviors which are common to many elastomers in various deformation regimes such as Mooney-Rivlin's relation in small extension, stress divergence in the elongation limit and the declined stress in compression. Furthermore, it is also qualitatively consistent with biaxial experiments, which can be explained by few theoretical models.
収録刊行物
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- 日本レオロジー学会誌
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日本レオロジー学会誌 39 (1_2), 65-73, 2011
一般社団法人 日本レオロジー学会
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詳細情報 詳細情報について
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- CRID
- 1390282680069285760
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- NII論文ID
- 10030207927
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- NII書誌ID
- AN00198812
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- ISSN
- 21864586
- 03871533
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- NDL書誌ID
- 11043579
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可