Correlation between Crystallization Behavior of Water in Polymer Solid and Their Biocompatibility

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  • 固体高分子中の水の結晶化挙動と生体適合性の相関
  • コタイ コウブンシ チュウ ノ ミズ ノ ケッショウカ キョドウ ト セイタイ テキゴウセイ ノ ソウカン

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Crystallization behavior of water sorbed into various non-water soluble polymers was examined by temperature-variable Fourier transform infrared spectroscopy (TV-FTIR) and differential scanning calorimetry (DSC). In general understanding of the sorbed water at low water content on the basis of DSC, all of the sorbed water has been considered to be non-freezing water. However, their TV-FTIR spectra clearly demonstrated the existence of the change in state including recrystallization of water by revapor deposition, which was vapor deposition (sublimation) during heating. Recrystallization of the sorbed water has been proposed to be devitrification and be a characteristic of biocompatible polymers. Recrystallization, however, was also observed in non-biocompatible polymers and recrystallization observed in the biocompatible polymer was not devitrification but revapor deposition.

Journal

  • Hyomen Kagaku

    Hyomen Kagaku 33 (1), 15-20, 2012

    The Surface Science Society of Japan

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