Fig. 6

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Prédominance relative des bandes d’absorption IR du benzoate de phényle (à 1740 cm-1) et de la fluorénone (1718 cm-1) au cours du vieillissement thermique du PEEK dans l’air à l’état caoutchoutique entre 250 et 320 °C (cette étude) et à l’état fondu entre 400 et 485 °C (littérature [2]).
Relative predominance of the IR absorption bands of phenyl benzoate (at 1740 cm-1) and fluorenone (1718 cm-1) during the thermal ageing of PEEK in air in rubbery state between 250 and 320 °C (present study) and in molten state between 400 and 485 °C (literature [2]).
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