Kinetic Studies on Thermal Degradation of Poly(aryl ether sulfone ether ketone ketone) Containing Naphthalene Ring

At different heating rates(β),the thermal degradation process of poly(aryl ether sulfone ether ketone ketone) containing naphthalene ring is one step reaction in N 2 and two in air through the TG DTG investigation.The degradation temperatures rise linearly with the increasing of the β.The degradation temperatures in N 2 are higher than those in air.An isoconversional procedure developed by Ozawa is used in this paper,and E is increased from 230.2 kJ/mol to 239.5 kJ/mol with increase of the conversion from 0% to 30%.The frequency factor A is 2.315×10 14 min -1 to 4.718×10 14 min -1 .The apparent reaction order of the reaction in N 2 is 1.