JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Online ISSN : 1881-1299
Print ISSN : 0021-9592
Materials and Devices
Interaction between Gel Framework of SiO2 or TiO2 Hydrogel and Incorporated Surfactants and Ru(bpy)32+
Tadahiro Murakata (Aita)Koichi SatoIkuho NakamuraKoichi HujishimaTakeshi HiguchiShimio Sato
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2002 Volume 35 Issue 10 Pages 938-943

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Abstract

To investigate the interaction between molecules incorporated into hydrogels and gel framework of hydrogels, SiO2 and TiO2 hydrogels containing a surfactant or Ru(bpy)32+ are prepared by a sol-gel method. For the hydrogels into which a surfactant is incorporated, the interaction is investigated through aggregation behavior of the surfactant. When the surfactant has no charge or the same charge as that of gel framework, the interaction is weak and aggregation of the surfactant occurs. When Ru(bpy)32+ is incorporated, it is absorbed strongly by SiO2 gel framework but not absorbed by TiO2 one. The interaction between Ru(bpy)32+ and SiO2 gel framework is so strong as to change photochemical properties of Ru(bpy)32+ greatly.

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© 2002 The Society of Chemical Engineers, Japan
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