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The nature of the pyrolysis and thermoxidative decomposition products of a number of polyamides was investigated using thermogravimetry, gas chromatography and mass spectrometry. The degree of potential toxic effect has been assessed from qualitative evaluation of the results.

Abstract-Pyrolysis, thermo-oxidation and combustion of polyethylene and polypropylene were studied and the products of these thermal degradation processes were identified by means of gas chromatography and gas chromatography-mass spectrometry. The individual products of thermal degradation were evaluated for their toxicity and a conclusion on presumed toxic effect of the combustion products of the polymers studied has been drawn.

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