Kinetics of thermal degradation in non-isothermal conditions of some phosphorus-containing polyesters and polyesterimides

The thermal decomposition behavior of some phosphorus-containing polyesters and a polyesterimide was studied using thermogravimetric analysis in air at several heating rates between 5 °C/min and 20 °C/min. The results of this study, realized for polymers with phosphorus linkage as pendant group, were compared with the behavior of some polymers having the same backbone structure, with phosphorus in the main chain, respectively, without phosphorus. The kinetic processing of data was carried out using the Coats-Redfern, Reich-Levi, Flynn-Wall-Ozawa and Kissinger methods.