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Compatibility of Polymer Blends Evaluated by Crystallization Dynamics. Simultaneous DSC-FTIR method

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Abstract

The mixing state of poly(vinylidene fluoride) (PVDF) and two amorphous polymers,poly(methyl methacrylate) (PMMA) and poly(isopropyl methacrylate) (PiPMA) were investigated from the viewpoint of crystallization dynamics using simultaneous DSC-FTIR method. The crystallization rate (R *) and the growth rate of trans-gauche-trans-gauche’ (TGTG’) conformation (Rc *) depended on both the blend content (φ) and the crystallization temperature for PVDF/PMMA. The temperature and φ dependency of R * and Rc * were almost the same for PVDF/PMMA. However, R * and Rc * depended scarcely on f for PVDF/PiPMA, and the temperature dependency of R * differed from that of Rc * for PVDF/PiPMA. These results showed that PVDF and PMMA were miscible on molecular level, and that PVDF/PiPMA was immiscible and the concentration fluctuation existed in the PVDF-rich phase.

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Authors and Affiliations

  1. Department of Applied Chemistry, Graduate School of Engineering, Tokyo Metropolitan University, Hachiouji, Tokyo, 192-0397, Japan

    H. Yoshida, G. Z. Zhang, T. Kitamura & T. Kawai

Authors
  1. H. Yoshida
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  2. G. Z. Zhang
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  3. T. Kitamura
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  4. T. Kawai
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Yoshida, H., Zhang, G.Z., Kitamura, T. et al. Compatibility of Polymer Blends Evaluated by Crystallization Dynamics. Simultaneous DSC-FTIR method. Journal of Thermal Analysis and Calorimetry 64, 577–583 (2001). https://doi.org/10.1023/A:1011559420408

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  • DOI: https://doi.org/10.1023/A:1011559420408

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