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  1. B200 工学部/工学研究科
  2. B200b 紀要
  3. Memoirs of the School of Engineering, Nagoya University
  4. 49(2)

Viscoelastic properties and structures of polymer blends

https://doi.org/10.18999/memsenu.49.2.109
https://doi.org/10.18999/memsenu.49.2.109
723097f6-de1a-49c5-8887-70a078469122
名前 / ファイル ライセンス アクション
49-2-01.pdf 49-2-01.pdf (4.2 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2020-10-23
タイトル
タイトル Viscoelastic properties and structures of polymer blends
言語 en
著者 Noda, Ichiro

× Noda, Ichiro

WEKO 101789

en Noda, Ichiro

Search repository
Takahashi, Yoshiaki

× Takahashi, Yoshiaki

WEKO 101790

en Takahashi, Yoshiaki

Search repository
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
キーワード
主題Scheme Other
主題 polymer blends
キーワード
主題Scheme Other
主題 homogeneous region
キーワード
主題Scheme Other
主題 inhomogeneous region
キーワード
主題Scheme Other
主題 viscoelastic properties
キーワード
主題Scheme Other
主題 domain structure
キーワード
主題Scheme Other
主題 textured material
キーワード
主題Scheme Other
主題 scaling law
キーワード
主題Scheme Other
主題 shear-induced homogenization
抄録
内容記述 Viscoelastic properties and structures of polymer blends were studied in the homogeneous and inhomogeneous regions, and in the vicinity of phase separation. In the homogeneous region, the zero-shear viscosity, the steady state compliance and the plateau modulus are very similar to those of polymer solutions, when the composition of high molecular weight component and the molecular weight of major component are low. In the inhomogeneous region, the stresses and domain sizes in steady states and the stresses in transient states in the step-up and step-down measurements agree with the scaling relations in the theory of Doi and Ohta, while the dynamic moduli in the dynamic measurements with pre-shear agree with the theory of Palierne, but not with the theory of Doi and Ohta, when the viscosity ratios of droplet to matrix is small. However, the dynamic moduli were consistent with stresses at the initial stage in the step-down measurements. The difference in the viscoelastic behaviors is caused by the difference in the change of domain structures by shear flow. When the viscosity ratio is large, however, the agreement between the experimental and theoretical results is worse because the domain structures are not well regulated by shear flow. In the vicinity of phase separation, the shear viscosity and compliance at the shallow quench conditions are enhanced at low shear rates, but they become almost the same as those in the homogeneous region at shear rates higher than the critical shear rates, implying the shear-induced homogenization. At the deep quench conditions the steady stress is consistent with the theory of Doi and Ohta, implying no shear-induced homogenization.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 School of Engineering, Nagoya University
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ID登録
ID登録 10.18999/memsenu.49.2.109
ID登録タイプ JaLC
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 0919-0805
書誌情報 en : Memoirs of the School of Engineering, Nagoya University

巻 49, 号 2, p. 109-154, 発行日 1998-03-27
著者版フラグ
値 publisher
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