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含能材料  2009 

偏二甲肼制备低熔点胺基酰亚胺的实验研究

DOI: 10.3969/j.issn.1006-9941.2009.04.025

Keywords: 应用化学,偏二甲肼(UDMH),胺基酰亚胺,合成,性能

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Abstract:

为了解决报废偏二甲肼再利用问题,使偏二甲肼经烷基化、酰基化、脱氢,合成了八种具有较低熔点的饱和脂肪族胺基酰亚胺化合物。研究了胺基酰亚胺的结构、熔点和热分解温度。红外分析表明,酰亚胺基团N-上的LP与酰基π轨道产生共轭效应,形成两个共振结构N=C—O-和N-—C=O。酰基上的取代烷基给电诱导能力的强弱对酰亚胺基团这两个共振结构的特征吸收峰位置有明显影响,给电诱导能力越弱,则N=C—O--和N-—C=O红外吸收的频率越高。动态DSC分析表明,胺基碳链对饱和脂肪族胺基酰亚胺热分解活性的影响不明显,而延长酰基碳链可显著提高热分解活性。

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