Thermogravimetric Analysis of Polycarbonates and Polythiocarbonates with Chlorine Atoms

摘要

The thermal stability and kinetics parameters of polycarbonates and polythiocarbonates derived from diphenols with chlorine atoms in the aromatic rings were studied, showing that polycarbonates have a higher thermal stability than the polythiocarbonates. All polymers degraded in a single stage in the considered temperature range, and the kinetics parameters were determined by using the Arrhenius relationship and a computer program. Polycarbonates degraded by a zero order kinetics, while polythiocarbonates by a first order kinetic.