Organogermanium polymers: pyrolysis chemistry of poly

Article abstract of DOI:10.1016/0022-328X(94)87266-X

The pyrolysis of poly<(germylene)diacetylenes> and poly<<(silylene)diacetylenes>> was studied under argon.The ceramic residues were obtained in good yield (66-82percent) due to cross-linking through the triple bonds at relatively low temperatures (150-250 deg C) which gave a carbon sp² matrix with disubstituted organogermyl and/or silyl groups.The ceramic residues contained a high amount of carbon (40-61percent) and all the germanium was recovered as metallic germanium above 500 deg C.Pyrolysis of poly<(germylene)diacetylenes> under ammonia gave germanium nitride after cross-linking and nitridation between 400 and 600 deg C. Key words: Germanium; Polymer; Diyne; Ceramic