| 聚芳醚醚酮和磺化聚芳醚醚酮的热分解动力学 |
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| 引用本文： | 霍瑞贞,罗远芳,梁理侃,金熹高,Karasz,F.E..聚芳醚醚酮和磺化聚芳醚醚酮的热分解动力学[J].高分子学报,1990(4). |
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| 作者姓名： | 霍瑞贞 罗远芳 梁理侃 金熹高 Karasz F.E. |
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| 作者单位： | 华南理工大学化学系，华南理工大学化学系，华南理工大学化学系，中国科学院化学研究所高分子物理开放实验室，美国麻省大学高分子系 广州 客座研究员，广州 客座研究员，广州 客座研究员，北京 100080，安城 01003 |
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| 摘 要： | 用热重法(TG)研究了聚芳醚醚酮(PEEK)和磺化改性的聚芳醚醚酮(S-PEEK)的热分解动力学,计算了热分解动力学参数,结果表明PEEK及S-PEEK的热分解符合无规引发裂解模型。进一步考察了磺化对PEEK热分解的影响,结合温度程序裂解色谱-质谱结果,探讨了S-PEEK的TG曲线上呈现二个失重台阶的意义。
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| 关 键 词： | 聚芳醚醚酮 磺化 热分解 动力学 热重法 裂解色谱-质谱 |
KINETIC STUDIES ON THERMAL DEGRADATION OF POLY (ARYL ETHER ETHER KETONE) AND SULFONATED POLY (ARYL ETHER ETHER KETONE) BY TG |
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| HUO Ruizhen,LUO Yuanfang,HANG Likan JIN Xigao.KINETIC STUDIES ON THERMAL DEGRADATION OF POLY (ARYL ETHER ETHER KETONE) AND SULFONATED POLY (ARYL ETHER ETHER KETONE) BY TG[J].Acta Polymerica Sinica,1990(4). |
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| Authors: | HUO Ruizhen LUO Yuanfang HANG Likan JIN Xigao |
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| Abstract: | The kinetics of thermal degradation of poly (aryl ether ether ketone) and sulfonated PEEK was studied by isothermal and dynamic thermogravimetry. The results calculated from the kinetic models based on random initiation followed by rapid disproportionation and termination were in good agreement with the experimental data. The overall activation energy for the degradation was found to be 235 KJ/mol. The effect of sulfonatiorr on thermal degradation was also mentioned. It is noted there are two weight loss steps in the dynamic TG curves for S-PEEK. Compared with the temperature programing PGC-MS data, the thermal degradation behaviour of S-PEEK was discussed here. |
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| Keywords: | Poly (aryl ether ether ketone) Sulfonation Thermal degradation Kine-ties Thermogravimetry Pyrolysis gas chromatography-Mass spectrometry |
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