Intercalation of n-alkylamines and alkylene diamines into carboxyl functionalized lamellar-type silsesquioxane

Hironori Ohshita, Machi Ito, Naokazu Idota, Ahmad Mehdi, Bruno Boury, Yoshiyuki Sugahara

    Research output: Contribution to journalArticle


    A sol-gel- derived carboxyl-functionalized lamellar-type silsesquioxane was prepared to investigate its potential for use as a host material for intercalation reactions with n-alkylamines and alkylene diamines. Upon intercalation of n-alkylamines and alkylene diamines, the interlayer distances increased as shown by X-ray powder diffraction patterns, and IR spectra showed the presence of absorption bands attributable to ν(COO-) and δ(NH3 +) modes. The amounts of intercalated n-alkylamines were determined from n-CnH2n+1NH2/-COOH molar ratios which, based on CHN analysis, exhibited values from 0.76 to 0.88; whereas the values determined for the alkylene diamines were 0.83 (NH2C4H8NH2), 0.45 (NH2C8H16NH2) and 0.33 (NH2C12H24NH2). These results show that intercalation of n-alkylamines and alkylene diamines into lamellar-type silsesquioxane bearing carboxyl groups proceeded successfully via acid-base mechanisms.

    Original languageEnglish
    Pages (from-to)1090-1093
    Number of pages4
    JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
    Issue number10
    Publication statusPublished - 2016 Oct 1



    • Acid-base mechanism
    • Alkylene diamine
    • Intercalation
    • Lamellar material
    • N-Alkylamine
    • Sol-gel process

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

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