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聚亚苯基苯并二噻唑与聚亚苯基苯并二噁唑的热分解
THERMAL DEGRADATION OF POLY(pPHENYLENEBENZOBISTHIAZOLE)\=AND POLY(pPHENYLENEBENZOBISOXAZOLE)
【摘要】 用高分辨裂解气相色谱质谱(HRPyGCMS)研究了聚亚苯基苯并二噻唑、聚亚苯基苯并二唑的热分解行为,鉴定了相应裂解产物的组成、分布及其与高分子结构的关系,并用热重法(TG)测定了它们的热分解反应动力学参数,提出了其热分解反应机理
【Abstract】 The thermal degradation of poly(pphenylenebenzobisthiazole) (PBZT) and poly\|(pphenylenebenzobisoxazole) (PBZO) was studied by high resolution pyrolysis\|gas chromatography/mass spectrometry (HR Py\|GC/MS) and thermogravimetry (TG).The pyrorgams of PBZT and PBZO were obtained at the pyrolysis temperatures between 764 and 1040,and the pyrolyzates were identified by on\|line MS.The influence of pyrolysis temperature on pyrolyzate yields is discussed.The thermal degradation mechanisms of PBZT and PBZO are described based on the results of HR Py\|GC/MS and dynamic parameters.\=
【关键词】 聚亚苯基苯并二噻唑;
聚亚苯苯并二唑;
热分解;
高分辨裂解气相色谱质谱;
热重法;
【Key words】 Poly(pphenylenebenzobisthiazole); Poly(pphenylenebenzoboisoxazole); Thermal degradation; High resolution pyrolysis\|gas chromatography/mass spectrometry; Thermogravimetry;
【Key words】 Poly(pphenylenebenzobisthiazole); Poly(pphenylenebenzoboisoxazole); Thermal degradation; High resolution pyrolysis\|gas chromatography/mass spectrometry; Thermogravimetry;
【基金】 中国科学院高分子物理实验室资助
- 【文献出处】 高分子学报 ,ACTA POLYMERICA SINICA , 编辑部邮箱 ,1999年03期
- 【分类号】TQ323.9
- 【被引频次】12
- 【下载频次】139