Novel organic-vycor glass composite membrane having Si-C bonds

Mikihiro Nomura, Yasuyuki Mineta, Naoko Yamaguchi, Eiichi Kikuchi, Koichi Fukunaga, Norikazu Nishiyama, Korekazu Ueyama, Masahiko Matsukata

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    Abstract

    A novel organic-ceramic membrane having stable Si-C bonds was developed for separation of high temperature organic solutions. Porous vycor glass was employed for a substrate which was modified by a series of chemical vapor deposition (CVD) and hydrosilylation. 1,3,5,7-Tetramethylcyclotetrasiloxane (H4) was used as a CVD source in order to introduce Si-H bonds on the surface of porous vycor glass. The Si-H bonds were then catalytically hydrosilylated with olefins. As a result, organic functional groups were introduced via Si-C bonds. A compact membrane was obtained when CVD treatment was carried out at 343 K. The membrane that was modified by the hydrosilylation of styrene showed benzene permselectiviy in benzene/cyclohexane vapor permeation test at 373 K. The separation factor of benzene over cyclohexane was 2.9 and benzene flux was 1.2 × 10 -5 mol m -2s -1Pa -1, and the permeation properties are stable for more than 1000 min at 373 K.

    Original languageEnglish
    Pages (from-to)731-736
    Number of pages6
    JournalJournal of Chemical Engineering of Japan
    Volume34
    Issue number6
    DOIs
    Publication statusPublished - 2001 Jun

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    Keywords

    • CVD
    • Hydrosilylation
    • Membrane
    • Organic modification
    • Porous vycor glass
    • Si-C bonds

    ASJC Scopus subject areas

    • Chemical Engineering(all)

    Cite this

    Nomura, M., Mineta, Y., Yamaguchi, N., Kikuchi, E., Fukunaga, K., Nishiyama, N., Ueyama, K., & Matsukata, M. (2001). Novel organic-vycor glass composite membrane having Si-C bonds. Journal of Chemical Engineering of Japan, 34(6), 731-736. https://doi.org/10.1252/jcej.34.731