Formation of a continuous mesoporous silica film with fully aligned mesochannels on a glass substrate

Hirokatsu Miyata, Kazuyuki Kuroda

    研究成果: Article

    118 引用 (Scopus)

    抄録

    A continuous mesoporous silica film with uniaxially aligned hexagonal mesochannels was formed on a silica glass substrate using a rubbing-treated thin polyimide coating on the substrate. Polyimide which has a hexamethylene group per the repeating unit as a part of the main chain was used. The mesostructured silica film was grown on the polyimide-coated substrate through the hydrolysis of tetraethoxysilane under acidic conditions in the presence of hexadecyltrimethylammonium chloride. X-ray diffraction experiments show that the hexagonal mesochannels in the film run parallel to the substrate surface and are aligned normal to the rubbing direction with a very narrow distribution of ±6°. The hexagonal arrangement of the mesochannels over the whole film thickness was proved by cross-sectional transmission electron microscopy. This highly preferred alignment of the mesochannels is caused by strong interactions between the surfactant tail groups and the polymer chains.

    元の言語English
    ページ(範囲)49-54
    ページ数6
    ジャーナルChemistry of Materials
    12
    発行部数1
    DOI
    出版物ステータスPublished - 2000

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    Silicon Dioxide
    Silica
    Polyimides
    Glass
    Substrates
    Polymers
    Fused silica
    Surface-Active Agents
    Film thickness
    Chlorides
    Hydrolysis
    Surface active agents
    Transmission electron microscopy
    X ray diffraction
    Coatings
    Experiments

    ASJC Scopus subject areas

    • Materials Science(all)
    • Materials Chemistry

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