Functionalization of aerogels by the use of pre-constructed monomers: The case of trifluoroacetylated (3-aminopropyl) triethoxysilane

Sergey A. Lermontov, Nataliya A. Sipyagina, Alena N. Malkova, Alexander V. Yarkov, Alexander E. Baranchikov, Vladimir V. Kozik, Vladimir K. Ivanov

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    A novel strategy for aerogels' functionalization, based on the preliminary modification of monomers before gelation, is proposed. The strategy is illustrated by the synthesis of trifluoroacetylated (3-aminopropyl) triethoxysilane (APTES)-based aerogels. An aerogel sample prepared by cogelation of APTES with tetraethoxysilane (TEOS), followed by trifluoroacetylation of free aminogroups, had a BET-surface area of 100-180 m2 g-1, while the samples prepared by cogelation of a preliminary trifluoroacetylated monomer with TEOS had a 2-5 times larger specific surface area. Trifluoroacetylated aerogels' properties showed strong dependence on the supercritical drying media. This journal is

    Original languageEnglish
    Pages (from-to)52423-52429
    Number of pages7
    JournalRSC Advances
    Volume4
    Issue number94
    DOIs
    Publication statusPublished - 13 Oct 2014

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)

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