Sol-gel synthesis of a nanostructured hybrid material from an organosiloxane oligomer with a terminal phenyl group

Atsushi Shimojima, Norimasa Atsumi, Noritaka Umeda, Yasuhiro Fujimoto, Kazuyuki Kuroda

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    A novel ordered siloxane-organic hybrid material has been prepared by hydrolysis and polycondensation of a well-defined alkoxysilane precursor consisting of a tetrasiloxane unit and a 4-phenylbutyl group (1). Evaporation-induced self-assembly during hydrolysis and polycondensation of 1 led to the formation of a two-dimensional (2D) hexagonal mesostructure, which was revealed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Solid-state 13C CP/MAS NMR and 29Si MAS NMR confirmed that the product consisted of 4-phenylbutyl groups and siloxane networks, both of which are linked via Si-C bonds. These results will allow us to produce functional hybrid materials by chemical modification of phenyl groups, and also by incorporating other organic groups. Furthermore, calcination of this hybrid to remove organic groups led to the creation of an ordered microporous silica with the Brunauer-Emmett-Teller (BET) surface area of 570 m 2 g -1 and the average pore diameter of 1.2 nm.

    Original languageEnglish
    Pages (from-to)819-822
    Number of pages4
    JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
    Volume114
    Issue number1334
    DOIs
    Publication statusPublished - 2006

    Fingerprint

    Siloxanes
    Hybrid materials
    Polycondensation
    oligomers
    Oligomers
    Nanostructured materials
    Sol-gels
    Hydrolysis
    Nuclear magnetic resonance
    gels
    Functional materials
    Chemical modification
    synthesis
    Silicon Dioxide
    Calcination
    Self assembly
    siloxanes
    Evaporation
    Silica
    hydrolysis

    Keywords

    • Microporous silica
    • Organoalkoxysilane
    • Self-assembly
    • Silica-based hybrid
    • Sol-gel processing

    ASJC Scopus subject areas

    • Ceramics and Composites

    Cite this

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    title = "Sol-gel synthesis of a nanostructured hybrid material from an organosiloxane oligomer with a terminal phenyl group",
    abstract = "A novel ordered siloxane-organic hybrid material has been prepared by hydrolysis and polycondensation of a well-defined alkoxysilane precursor consisting of a tetrasiloxane unit and a 4-phenylbutyl group (1). Evaporation-induced self-assembly during hydrolysis and polycondensation of 1 led to the formation of a two-dimensional (2D) hexagonal mesostructure, which was revealed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Solid-state 13C CP/MAS NMR and 29Si MAS NMR confirmed that the product consisted of 4-phenylbutyl groups and siloxane networks, both of which are linked via Si-C bonds. These results will allow us to produce functional hybrid materials by chemical modification of phenyl groups, and also by incorporating other organic groups. Furthermore, calcination of this hybrid to remove organic groups led to the creation of an ordered microporous silica with the Brunauer-Emmett-Teller (BET) surface area of 570 m 2 g -1 and the average pore diameter of 1.2 nm.",
    keywords = "Microporous silica, Organoalkoxysilane, Self-assembly, Silica-based hybrid, Sol-gel processing",
    author = "Atsushi Shimojima and Norimasa Atsumi and Noritaka Umeda and Yasuhiro Fujimoto and Kazuyuki Kuroda",
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    T1 - Sol-gel synthesis of a nanostructured hybrid material from an organosiloxane oligomer with a terminal phenyl group

    AU - Shimojima, Atsushi

    AU - Atsumi, Norimasa

    AU - Umeda, Noritaka

    AU - Fujimoto, Yasuhiro

    AU - Kuroda, Kazuyuki

    PY - 2006

    Y1 - 2006

    N2 - A novel ordered siloxane-organic hybrid material has been prepared by hydrolysis and polycondensation of a well-defined alkoxysilane precursor consisting of a tetrasiloxane unit and a 4-phenylbutyl group (1). Evaporation-induced self-assembly during hydrolysis and polycondensation of 1 led to the formation of a two-dimensional (2D) hexagonal mesostructure, which was revealed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Solid-state 13C CP/MAS NMR and 29Si MAS NMR confirmed that the product consisted of 4-phenylbutyl groups and siloxane networks, both of which are linked via Si-C bonds. These results will allow us to produce functional hybrid materials by chemical modification of phenyl groups, and also by incorporating other organic groups. Furthermore, calcination of this hybrid to remove organic groups led to the creation of an ordered microporous silica with the Brunauer-Emmett-Teller (BET) surface area of 570 m 2 g -1 and the average pore diameter of 1.2 nm.

    AB - A novel ordered siloxane-organic hybrid material has been prepared by hydrolysis and polycondensation of a well-defined alkoxysilane precursor consisting of a tetrasiloxane unit and a 4-phenylbutyl group (1). Evaporation-induced self-assembly during hydrolysis and polycondensation of 1 led to the formation of a two-dimensional (2D) hexagonal mesostructure, which was revealed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Solid-state 13C CP/MAS NMR and 29Si MAS NMR confirmed that the product consisted of 4-phenylbutyl groups and siloxane networks, both of which are linked via Si-C bonds. These results will allow us to produce functional hybrid materials by chemical modification of phenyl groups, and also by incorporating other organic groups. Furthermore, calcination of this hybrid to remove organic groups led to the creation of an ordered microporous silica with the Brunauer-Emmett-Teller (BET) surface area of 570 m 2 g -1 and the average pore diameter of 1.2 nm.

    KW - Microporous silica

    KW - Organoalkoxysilane

    KW - Self-assembly

    KW - Silica-based hybrid

    KW - Sol-gel processing

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