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磺化聚醚酮酮热分解动力学研究
STUDY ON THE KINETICS OF THERMAL DEGRADATION OF THE SULPHONATED POLYETHERKETONEKETONE
【Abstract】 The process of thermal degradation of sulphonated polyetherketoneketone (SPEKK) was studied by the thermogravimetry (TG) and differential thermal gravinetric analysis (DTG).There were two weight loss steps in TG for SPEKK.The first one was the -SO 3H aparts from the main chain of SPEKK,the activation energy was found to be 67.44kJ/mol.The second,was the polymer main chain degradated of which the activation energy was about 210.4kJ/mol.The thermal degradation of SPEKK was in agreement with the models of random initation.
【关键词】 磺化聚醚酮酮;
热分解活化能;
热失重;
【Key words】 sulphonated polyetherketoneketone; thermal degradation activation energy; thermogravimet?;
【Key words】 sulphonated polyetherketoneketone; thermal degradation activation energy; thermogravimet?;
【基金】 湖北省教委科研资助项目
- 【文献出处】 化学研究与应用 ,Chemical Research and Application , 编辑部邮箱 ,2000年04期
- 【分类号】O631.31
- 【被引频次】2
- 【下载频次】91