A new method for thermal polycondensation of volatile molecular precursors—synthesis of polymeric silicon methyldiimide si(NH)NCH3

Authors

  • Prof. Martin Jonsen,

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    1. Institut für anorganische Chemie der universitäl bonn Gerhard-Domagk-Strasse L W-5300 Bonn 1(FRG)
    • Institut für anorganische Chemie der universitäl bonn Gerhard-Domagk-Strasse L W-5300 Bonn 1(FRG)
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  • Josua Löffelholz

    1. Institut für anorganische Chemie der universitäl bonn Gerhard-Domagk-Strasse L W-5300 Bonn 1(FRG)
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  • Support by the Deutsche Forschungsgemeinschaft, Fonds der Chemischen Industrie and Bayer AG(supply of reagenys and 1H-NMR spectroscopy) is greatfully acknowledeged.

Abstract

Inorganic polymers are attractive precursors for high-performance ceramics. A new method of producing the polymers via thermal polycondensation of volatile molecular precursors is presented which does not involve the use of catalysts and therefore avoids contamination of the polymers with the catalysts or with byproducts of the catalytic reaction. The example presented is the polycondensation of tetrakis(methylamino)silane, which is a readily available precursor for Si3N4/SiC ceramics.

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