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Radiochemical ageing of poly(ether ether ketone)

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Academic year: 2021

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Fig. 1. Full range FTIR spectra of 60 l m amorphous PEEK films at different irradiation doses (up to 30.7 MGy).
Fig. 4. Effect of NH 3 treatment on the IR spectrum of 30.7 MGy irradiated sample (subtracted spectra between treated and untreated sample) in the hydroxyl region (a) and in the carbonyl region (b).
Fig. 5. DSC thermograms of 60 l m thick amorphous films for different exposure doses. y = -0.2323x + 144.75R2 = 0.88631371381391401411421431441451461470510152025 30 35dose (MGy)Tg (°C)
Fig. 8. Melting point temperature (  ) and melting enthalpy ( j ) against irradiation dose for quenched 60 l m thick films.
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