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Phase Transition and Self-Assembling Structures of Polymer Mixtures under Shear Flow

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Dynamics and Patterns in Complex Fluids

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 52))

Abstract

We discuss self-assembling structures and phase transition of polymer systems under a Couette type shear-flow. Ternary systems with polymer A + polymer B + solvent, forming a semidilute solution of A/B mixtures, exhibit strongly elongated self-assembling structures under the shear and are brought back into single-phase state at a higher shear rate. The drop of critical temperature with shear is much larger than that for the critical mixture of simple liquids by three-to-four orders of magnitude. The ternary systems with off-critical compositions exhibit ellipsoidal droplets with an extremely narrow size distribution at a low shear rate and a shear-induced cluster-to-percolation transition at a higher shear-rate. Finally a trend completely opposite to the shear-induced homogenization will be presented for a binary mixture of polymer A + solvent.

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Author information

Authors and Affiliations

  1. Department of Polymer Chemistry, Kyoto University, Kyoto 606, Japan

    T. Takebe & K. Fujioka

Authors
  1. T. Hashimoto
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  2. T. Takebe
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  3. K. Fujioka
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Editor information

Editors and Affiliations

  1. Research Institute for Fundamental Physics, Kyoto University, Kyoto 606, Japan

    Akira Onuki

  2. Department of Physics, Kyushu University, Fukuoka 812, Japan

    Kyozi Kawasaki

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© 1990 Springer-Verlag Berlin Heidelberg

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Hashimoto, T., Takebe, T., Fujioka, K. (1990). Phase Transition and Self-Assembling Structures of Polymer Mixtures under Shear Flow. In: Onuki, A., Kawasaki, K. (eds) Dynamics and Patterns in Complex Fluids. Springer Proceedings in Physics, vol 52. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76008-2_17

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  • DOI: https://doi.org/10.1007/978-3-642-76008-2_17

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-76010-5

  • Online ISBN: 978-3-642-76008-2

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