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  • 1 Institute of Macromolecular Compounds of the Academy of Sciences of the USSR Leningrad USSR
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The method of comparative thermal analysis has been used to determine the thermal stability of polyimides and their model compounds. The extent of defects in the investigated polyimides was determined by gas chromatography. The dependence of the extent of the defects on the chemical structure of the initial components and the supermolecular structure of the polyimides was established.