Fig. 2

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(a) Modification de la région des hydroxyles du spectre IRTF et (b) Évolutions des concentrations des phénols (en rouge) et des acides benzoïques (orange) au cours du vieillissement thermique du PEEK dans l’air à 320 °C.
(a) Changes in the hydroxyl region of the FTIR spectrum and (b) Changes in the phenol (in red) and benzoic acid concentrations (in orange) during the thermal ageing of PEEK in air at 320 °C.
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