The Thermal Conversion of Poly[(silylene)‐diacetylene] Metal Oxide Composites: A New Approach to β‐SiCMC Ceramics

Abstract

Cross‐linking of 1, formation of a SiC network, and reduction of the encapsulated TiO2 particles are the three steps in the reaction of poly[(dimethylsilylene)diacetylene] (1) and TiO2 which produces SiCTiC ceramics [Eq. (a)]. The reduction of the metal oxide in this case is possible at much lower temperatures than with carbon alone. This method can be applied to a number of metal oxides, and also B2O3. The ceramic's composition can be modulated by variation of the polymer. (Formula Presented.) Copyright © 1992 by VCH Verlagsgesellschaft mbH, Germany