| 超支化不饱和聚(酰胺-酯)的改性及热分解动力学 |
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| 引用本文： | 王敏捷,张青,李春子,巴信武. 超支化不饱和聚(酰胺-酯)的改性及热分解动力学[J]. 河北大学学报(自然科学版), 2007, 27(3): 292-299. DOI: 10.3969/j.issn.1000-1565.2007.03.018 |
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| 作者姓名： | 王敏捷 张青 李春子 巴信武 |
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| 作者单位： | 河北大学,化学与环境科学学院,河北,保定,071002 |
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| 基金项目： | 河北省自然科学基金资助项目(B2004000093) |
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| 摘 要： | 采用不同链长的十四酰氯和十八酰氯对超支化不饱和聚(酰胺-酯)(MHBP)的端羟基进行原位端基改性,制备出2种改性超支化聚合物,用傅立叶红外光谱(FTIR)、热重分析(TGA)、黏度法等对其结构及性能进行表征,并研究了它们的热分解行为及其热分解动力学.结果表明,其热分解反应不是一级反应,改性超支化聚合物的热稳定性与末端烷烃链的长度有关,用Ozawa法求出了热分解表观活化能.
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| 关 键 词： | 超支化不饱和聚(酰胺-酯) 改性 热分解动力学 |
| 文章编号： | 1000-1565(2007)03-0292-08 |
| 修稿时间： | 2006-12-29 |
Modification of Hyperbranched Unsaturated Poly(amine-ester)s and the Thermal Degradation Kinetics |
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| WANG Min-jie,ZHANG Qing,LI Chun-zi,BA Xin-wu. Modification of Hyperbranched Unsaturated Poly(amine-ester)s and the Thermal Degradation Kinetics[J]. Journal of Hebei University (Natural Science Edition), 2007, 27(3): 292-299. DOI: 10.3969/j.issn.1000-1565.2007.03.018 |
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| Authors: | WANG Min-jie ZHANG Qing LI Chun-zi BA Xin-wu |
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| Abstract: | The end groups of hyperbranched unsaturated poly(amine-ester)s were respectively modified with myristic acid and stearic acid.The products were characterized by FTIR,TGA and intrinsic viscosity measurement.The thermal degradation behavior and thermal degradation kinetics were studied.The non-isothermal degradation behavior of HBP,MHBP-14 and MHBP-18 were studied by using thermogravimetry analysis in nitrogen.They were not a first order reation.The thermostability of the modified hyperbranched polymers related with the length of alkane chains at the molecule ends,so the apparent activation energy of MHBP-18 was bigger than MHBP-14. |
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| Keywords: | hyperbranched unsaturated poly(amine-ester)s modification thermal degradation kinetics |
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