The thermal degradation of acrylonitrile-butadiene-styrene terpolymer under various gas conditions

In this paper, the thermal degradation of (acrylonitrile-butadiene-styrene) terpolymer (ABS) was studied under various gas conditions as used by the thermogravimetry analyzer. The activation energies of thermal decomposition were evaluated by using Flynn's and Freeman's models. The experimental results showed that the activation energy of isothermal heating of ABS resin were 32.0, 34.4, and 42.7 kcal/mole under oxygen, air, and nitrogen, respectively. The activation energy of dynamic heating of ABS resin under nitrogen gas was 42.0 kcal/mole. (C) 1999 Elsevier Science Ltd. All rights reserved.