where A is a pre-exponential factor (min1
), R is the gas
constant (8.31 J.mol1
.K1
), and Eact is the activation energy
of the degradation process. By plotting ln(b) vs 1/T, the
activation energy can be obtained, regardless of the reaction
order of the system (Fig. 3c and d). The validity of this
model is based in the assumption that the conversion is
constant for different heating rates[34,35].
T