Mass-spectrometric study of thermal-oxidative breakdown of low molar mass compounds simulating the structure of crosslinked polymers derived from diepoxides and aromatic amines☆

Abstract On increasing the time of action of oxygen on low molar mass compounds simulating the structure of crosslinked polymers derived from diepoxides and amines, the temperature at which products identical to products of thermal decomposition of polymers in vacuum appears decreases. Dehydration is the process of the highest temperature. The formation of products, M of which is 1·5–2·5 times higher than M of the initial compound, is due to the interaction of alkyl, aroxyl and aminyl radicals with the initial compounds by homolytic substitution into aromatic nucleus.