| 水溶性聚酯的热降解动力学研究 |
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| 引用本文： | 应宗荣,李瑞霞.水溶性聚酯的热降解动力学研究[J].高分子学报,1997(6):738-740. |
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| 作者姓名： | 应宗荣 李瑞霞 |
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| 作者单位： | 四川联合大学轻纺学院 |
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| 摘 要： | 水溶性聚酯的热降解动力学研究应宗荣李瑞霞吴大诚（四川联合大学轻纺学院成都６１００６５）关键词水溶性聚酯，热降解，动力学，活化能高聚物的热稳定性直接影响高聚物的应用和加工成型．高聚物在高温时易发生热降解，导致分子链断裂，分子量降低，性能劣化．研究...
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| 关 键 词： | 水溶性聚酯，热降解，动力学，活化能 |
KINETICS OF THERMAL DEGRADATION FOR WATER SOLUBLE POLYESTER |
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| YING Zongrong,LI Ruixia,WU Dacheng.KINETICS OF THERMAL DEGRADATION FOR WATER SOLUBLE POLYESTER[J].Acta Polymerica Sinica,1997(6):738-740. |
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| Authors: | YING Zongrong LI Ruixia WU Dacheng |
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| Abstract: | The thermal stability and kinetics of thermal degradation for water soluble polyester (WSP), which is prepared by the copolycondensation of dimethyl terephthalate (DMT), dimethyl isophthalate (DMI) and 5 sodium sulfonate isophthalate methyl (SIPM) with ethylene glycol (EG), were studied using the conventional static and dynamic thermogravimetric techniques in a flowing nitrogen atmosphere. The thermal degradation rate parameter k and apprarent activation energy E were calculated using first order reaction intregal methold and Ozawa method respectively. It was found that the thermal degradation of WSP at 290℃ belongs to first order reaction, its rate parameter of thermal degradation k is 12.84×10 -6 s -1 ,and average apparent activation energy E is 156.8kJ/mol. |
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| Keywords: | Water soluble polyester Thermal degradation Kinetics Activation energy |
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