Studies on thermal degradation of aromatic polyesters by pyrolysis-gas chromatography.
Thermal degradation of aromatic polyesters (see text for formula) (m = 2, 3, 4, 5, and 6) was studied by pyrolysis/gas chromatography using a Curie-point pyrolyzer directly attached to a gas chromatograph with a thermally stable polar separation column (Thermon-1000) to cover a wide range of the degradation products. The characteristic peaks appearing on the pyrograms were identified using a mass spectrometer with a chemical ionization source which was also directly attached to the gas chromatograph. On the basis of the observed pyrograms, the common degradation mechanisms of the aromatic polyesters were discussed.
Department of Synthetic Chemistry, Faculty of Engineering, Nagoya University, Nagoya 464, Japan.
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Sugimura
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Tsuge