コロイダルシリカ上の活性剤2層吸着層内でのスピロピランのフォトクロミズム〔英文〕

DOI Web Site 参考文献3件
  • ESUMI Kunio
    Department of Applied Chemistry and Institute of Colloid and Interface Science, Science University of Tokyo
  • MEGURO Mitsuka
    Department of Applied Chemistry and Institute of Colloid and Interface Science, Science University of Tokyo
  • WATANABE Nobuaki
    Department of Applied Chemistry and Institute of Colloid and Interface Science, Science University of Tokyo
  • MEGURO Kenjiro
    Department of Applied Chemistry and Institute of Colloid and Interface Science, Science University of Tokyo

書誌事項

タイトル別名
  • Photochromism of Spiropyran in Surfactant Bilayer on Colloidal Silica
  • コロイダル シリカジョウ ノ カッセイザイ 2ソウ キュウチャクソウナイ デ

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説明

The isomerization of a spiropyran adsolubilized in cationic surfactant bilayer formed on colloidal silica was studied. The thermal decoloration of UV-induced merocyanine to spiropyran was observed. at 35°C. The thermal decoloration rate constants in the bilayer decreased with an increase of the. alkyl chain length of the cationic surfactant and were smaller than those in their corresponding micelles. These differences in the rate constants between bilayer and micelles were discussed from the viewpoints of microenvironmental properties in these circumstances in the presence of merocyanine.

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