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This study covers the thermal degradation of polycarbonate by means of   Thermogravimetric Analyzer coupled with Fourier transform infrared   spectrometer (TGA-FTIR). Thermogravimetric analysis of polycarbonate was   carried out at four different heating rates of 5, 10, 15, and 20°C per   minute from 25°C to 1000°C under nitrogen atmosphere. The results indicated   that polycarbonate was decomposed in the temperature range of 425-600°C. The   kinetic parameters, such as activation energy, pre-exponential factor and   reaction order were determined using five different kinetic models; namely   Coast-Redfern, Friedman, Kissinger, Flynn-Wall-Ozawa (FWO), and   Kissinger-Akahira-Sunose (KAS). Overall decomposition reaction order was   determined by Coats-Redfern method as 1.5. Average activation energy was   calculated as 150.42, 230.76, 216.97, and 218.56 kJ/mol by using Kissinger,   Friedman, FWO, and KAS models, respectively. Furthermore, the main gases   released during the pyrolysis of polycarbonate were determined as CO2, CH4,   CO, H2O, and other lower molecular weight hydrocarbons such as aldehydes,   ketones and carbonyls by using thermogravimetric analyzer coupled with   Fourier transform infrared spectrometer

Pyrolysis kinetics and thermal decomposition behavior of polycarbonate - a TGA-FTIR study