Synthesis of interlamellar silylated derivatives of magadiite and the adsorption behavior for aliphatic alcohols

Ikuko Fujita, Kazuyuki Kuroda, Makoto Ogawa

    Research output: Contribution to journalArticle

    72 Citations (Scopus)

    Abstract

    Interlayer silanol groups of a layered polysilicate magadiite (Na 2H2Si14O30·nH2O) were silylated with octyltrichlorosilane via dodecyltrimethylammonium magadiite as the intermediate. Three organic derivatives with different degrees of silylation were prepared by varying the amount of the silylating reagent. Aliphatic alcohols with different alkyl chain lengths (n = 8, 12, and 16) were adsorbed into these derivatives at room temperature, and the adsorption behavior was examined. The basal spacings of the derivatized silicates were expanded after the adsorption, and larger spacings were observed when the derivatives with lower degrees of silylation and the alcohols with longer chain lengths were used. Because intercalated alcohols and alcohols taken up in the intercrystal spaces were desorbed by drying, the amounts of intercalated alcohols were estimated by surveying the relationship between the variation in the basal spacing and the amounts of alcohols in the samples treated under various drying conditions. Larger amounts of alcohols were adsorbed onto the derivatives with lower degree of silylation, indicating a possible control of the interlayer nanospace by varying the amount of grafting alkylsilyl groups.

    Original languageEnglish
    Pages (from-to)3134-3141
    Number of pages8
    JournalChemistry of Materials
    Volume15
    Issue number16
    DOIs
    Publication statusPublished - 2003 Aug 12

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    Alcohols
    Derivatives
    Adsorption
    Chain length
    Drying
    Silicates
    Surveying
    Temperature

    ASJC Scopus subject areas

    • Materials Chemistry
    • Materials Science(all)

    Cite this

    Synthesis of interlamellar silylated derivatives of magadiite and the adsorption behavior for aliphatic alcohols. / Fujita, Ikuko; Kuroda, Kazuyuki; Ogawa, Makoto.

    In: Chemistry of Materials, Vol. 15, No. 16, 12.08.2003, p. 3134-3141.

    Research output: Contribution to journalArticle

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