- 作者: Wang, Jenn-Hwa
- 作者服務機構: Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan, R. O. C.
- 中文摘要: --
- 英文摘要:
The pH method was modified and used to investigate the thermal oxidative
degradation behaviors of polyvinyl chloride type polymers in the temperature range of
150-210℃. Experimental results indicated that the modified pH method yielded better
data than the original one. The thermal stability of the polymers were found to increase
along with increasing molecular weight. The addition of vinyl acetate into the polymer
structure also improved the thermal stability. The apparent activation energy of the
thermal oxidative degradation were calculated from a generalized Nichigetzu-Dakin type
equation. - 中文關鍵字: --
- 英文關鍵字: --