Diorganosilacetylene-alt-diorganosilvinylene polymers and a process of preparation

摘要: The present invention provides linear organosilicon polymers including acetylene and vinylene moieties, a process for their preparation. These diorganosilacetylene-alt-diorganosilvinylene can be represented by the formula: --[--(R 1 )(R 2 )Si--C.tbd.C--(R 3 4 )Si--CH═CH--].sub.n --, wherein n≧2; each R , is independently selected from group consisting of hydrogen, halogen, alkyl, alkenyl, aryl, aralkyl radicals. are soluble in organic solvents, air stable, pulled into fibers or cast films. They thermally converted silicon carbide ceramic materials.