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Thermal Degradation Behavior and Kinetics of Polybenzoxazine Based on Bisphenol-S and Allylamine |
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| Authors: | Jinbai Huang Hu Yue Shufang Lv Zhanzhan Hao Man Wang |
| Affiliation: | 1. Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry &2. Environmental Science, Hebei University, Baoding, China;3. College of Environment and Chemical Engineering, Yanshan University, Qinhuangdao, China |
| Abstract: | The thermal degradation behavior of polybenzoxazine based on bisphenol-S/allylamine was studied by Fourier transform–infrared spectroscopy and thermogravimetry–mass spectrometry. The reaction proceeded through detaching of Schiff bases and cleavage of aromatic C–S bonds and the Mannich bridge structures; the scission temperature of the aromatic C–S bond was lower than those of C–N and C–C bonds. The activation energy of the thermal degradation was evaluated with the Flynn–Wall–Ozawa method. |
| Keywords: | degradation kinetics Fourier transform–infrared spectroscopy mass spectrometry polybenzoxazine thermal degradation thermogravimetry |