Abstract
The characteristics of thermooxidative degradation of the samples of cured epoxy acrylates based on epoxy resins ED-20 and UP-637, as well as their compositions with oligoether acrylate TGM-3, were investigated by the method of simultaneous thermal analysis. It has been found that the photopolymers have a sufficiently high resistance to thermal oxidation, the start temperature of active thermal destruction exceeds 325 ° C. Differences in the chemical structure of the aromatic fragment determine the features of thermal resistance. The addition of an active diluent to the composition is capable to reduce the internal stresses of the polymer structure and to promote a shift in the onset of thermal oxidation to higher temperatures.
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