モノアシルグリセリン-水混合系の熱的・構造的挙動に関する検討 (第1報)

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タイトル別名
  • The Phase Behavior of Monostearoylglycerol-Water Systems. I.
  • モノアシルグリセリン ミズ コンゴウケイ ノ ネツテキ コウゾウテキ キョドウ
  • Study on Thermal and Structural Behavior of Monoacylglycerol-Water Systems
  • モノステアロイルグリセリン-水混合系について

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The structures of molecular aggregates in monostearoylglycerol- water systems were determined primarily by small angle X-ray diffraction method. Based on the results, the phase diagram in these systems were constructed.<BR>Some crystal phases and a gel phase were shown to exist at temperature below Tc. The phase transition between crystals was observed at about 17°C and two crystals phases were shown to exist above 17°C. The layer spaces of the crystals differed. The crystals were α and β forms according to wide angle X-ray diffraction. The a crystal was transformed to the β crystal with respect to time.<BR>A reversed hexagonal phase was present in the region of high monoacylglycerol concentration at higher temperature than Tc. On the contrary, a lamellar phase was found at low concentration range. The lamellar phase was transformed into two different cubic phases at temperature exceeding 70°C. The cubic phase (C1) was present in more than 60 wt% of the monostearoylglycerol. The other cubic phase (C2) existed at monostearoylglycerol content below 60wt%. The size of the liquid crystals were determined in part by temperature.<BR>With formation of the liquid crystals, it became apparent that their structures were determined primarily by the quantity of hydrated water and molecular geometry.

収録刊行物

  • 油化学

    油化学 44 (11), 997-1003, 1995

    公益社団法人 日本油化学会

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