Primitive chain network simulations of damping functions for shear, uniaxial, biaxial and planar deformations (関東地区レオロジー研究会特集号)
スポンサーリンク
概要
- 論文の詳細を見る
Damping functions of entangled polymers for shear, uniaxial, biaxial, and planar deformations, as well as normal stress ratios for shear deformations, were obtained from Brownian simulations making use of the primitive chain network model. To investigate the effect of the force balance over the entanglements and of the convective constraint release mechanism, comparisons with predictions of earlier theories and with experimental data in the literature were performed. It was found that the obtained damping functions are close to the three-chain theory [Marrucci, Greco, and Ianniruberto, Macromol Symp, 158, 57 (2000)] suggesting that the force balance is a dominant correction over the basic Doi-Edwards theory as compared with the effect of convective constraint release. Furthermore, the predicted normal stress ratio in shear, i.e., a quantity very sensitive to the different assumptions, is in good agreement with experiments, suggesting that the combination of force balance, convective constraint release, and other relaxation modes, as accounted for through the primitive chain network model, is quite acceptable.
- 日本レオロジー学会の論文
著者
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増渕 雄一
Institute For Chemical Research Kyoto University
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Masubuchi Yuichi
Department of Cardiovascular medicine, Nihon University School of Medicine
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Greco Francesco
Istituto Di Ricerche Sulla Combustione Cnr
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IANNIRUBERTO Giovanni
Dipartimento di Ingegneria Chimica, Universita degli studi di Napoli "Federico II"
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MARRUCCI Giuseppe
Dipartimento di Ingegneria Chimica, Universita degli studi di Napoli "Federico II"
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Furuichi Kenji
TOYOBO Co., Ltd.
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Nonomura Chisato
TOYOBO Co., Ltd.
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Marrucci Giuseppe
Dipartimento Di Ingegneria Chimica Universita Degli Studi Di Napoli "federico Ii
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Masubuchi Yuichi
Yamagata Univ. Yonezawa Jpn
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Ianniruberto Giovanni
Dipartimento Di Ingegneria Chimica Universita Degli Studi Di Napoli "federico Ii
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Masubuchi Yuichi
Department Of Applied Physics Faculty Of Engineering Nagoya University
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