“…Then, isothermal ageing was carried out in an oven at 150 °C under air at atmospheric pressure and 2 bar of oxygen pressure. The employment of oxygen pressure as an acceleration parameter for thermo-oxidative degradation phenomena ( Tsotsis et al, 1999;Tsotsis et al, 2001;Astruc et al, 2004;Ciutacu et al, 1991 ) has been studied and validated in ( Grandidier et al, 2015 ), at least for pressure values up to 8 bar. Fig.…”