| 초록 |
The effect of molecular weight on kinetics of thermal degradation was studied by using the weight loss curves obtained with TGA instrument. SAN(styrene-acrylonitrile-copolymer) was used as material and its kinetic parameters of thermal degradation were calculated by Flynn ＆ Wall equation and Kissinger equation. In the case of Flynn and Wall’s method, activation energies were 205.68, 189.04, 175.85 and 194.11 kJ/mol at molecular weights of 319000, 119000, 180000 and 92000, respectively. Obtained from Kissinger equation, activation energies were similar values.
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