Preparation of titania/PDMS hybrid films and the conversion to porous materials

Masato Nakade, Kosuke Ichihashi, Makoto Ogawa*

*この研究の対応する著者

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Transparent films of titania/poly(dimethylsiloxane) (PDMS) hybrids were prepared by the solvent evaporation from the precursor solution prepared by the co-hydrolysis and co-condensation of titanium tetraisopropoxide and a methoxy-functionalized PDMS. The hybrid films were flexible and had high homogeneity of the composition. The organic groups of PDMS were decomposed at 400°C in air to form porous films. Though the heated films were rather brittle compared to the as-synthesized films, they were still transparent and homogeneous. The BET surface areas of the films after the heat treatment at 400°C were over 300 m2/g, while the as-synthesized hybrid films were non porous. According to the BDDT classification, the nitrogen adsorption/desorption isotherms of the calcined films were Type I, showing that the films were microporous. The titania domains were still amorphous after the heat treatment at 400°C and transformed to anatase after the heat treatment at 1,000°C.

本文言語English
ページ(範囲)257-264
ページ数8
ジャーナルJournal of Sol-Gel Science and Technology
36
3
DOI
出版ステータスPublished - 2005 12月

ASJC Scopus subject areas

  • セラミックおよび複合材料

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