Article Dans Une Revue Polymer Degradation and Stability Année : 2024

Thermal oxidation of diallylbisphenol A - bismaleimide networks. Comonomer effect and kinetic modelling

Résumé

Pure BMI resin based on 4,4′-bismaleimidodiphenylmethane (BMI) and its copolymers with various quantities of 2,2′-diallylbisphenol A (BMI-DABPA 2–1, BMI-DABPA 1–1, BMI-DABPA 1–2) were thermally aged. Ageing at 160 °C was monitored by FTIR and showed the greatest reactivity of diallyl groups which accelerate the degradation of BMI-DABPA copolymers. It was confirmed by a gravimetric study of ageing under nitrogen or oxygen at 350 and 375 °C. A co-oxidation kinetic model was proposed for describing the oxidation of BMI and BMI-DABPA systems. The effect of the main kinetic parameters was discussed from a parametric study. The main rate constants were estimated from the fitting of experimental curves and comparable gravimetric data from literature.

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hal-04967748 , version 1 (26-02-2025)

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Emmanuel Richaud, Justine Delozanne. Thermal oxidation of diallylbisphenol A - bismaleimide networks. Comonomer effect and kinetic modelling. Polymer Degradation and Stability, 2024, 219, pp.110628. ⟨10.1016/j.polymdegradstab.2023.110628⟩. ⟨hal-04967748⟩
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