...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >UV-Induced Degradation Rates of 1,3,5-Triamino-2,4,6-Trinitrobenzene (TATB)
【24h】

UV-Induced Degradation Rates of 1,3,5-Triamino-2,4,6-Trinitrobenzene (TATB)

机译：紫外线引起的1,3,5-三氨基-2,4,6-三硝基苯（TATB）的降解速率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We report a 2.5-year study of the photolytic degradation of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) with variations in temperature, humidity, and illumination by fluorescent and UV light (254, 312, and 365 nm). The free-radical decomposition product was monitored with electron paramagnetic resonance (EPR). The EPR spectrum of the green powder allowed reliable quantitation with a single peak (FWHM = 29.1 G). The variations in humidity showed little effect in accelerating the degradation of TATB. The only significant temperature effect was noticed at -10 ℃, where fewer radicals formed. The radical production rates at -10 ℃ were some of the highest measured, however, suggesting that the rates under other temperature conditions had slowed, perhaps as a result of extensive conversion of surface molecules to radical species. We show that a substantial amount of radicals can be generated with UV light, and work is ongoing to modify our EPR spectrometer so that TATB can be irradiated in the ERP cavity to measure the initial rates of radical formation.
机译：我们报告了一项为期2.5年的研究，研究了1,3,5-三氨基-2,4,6-三硝基苯（TATB）在温度，湿度以及荧光和紫外线照射下的光解降解情况（254、312和365 nm）。用电子顺磁共振（EPR）监测自由基的分解产物。绿色粉末的EPR光谱具有可靠的定量（单峰（FWHM = 29.1 G））。湿度变化对加速TATB降解几乎没有影响。在-10℃时观察到唯一明显的温度效应，形成的自由基较少。在-10℃时自由基的产生速率是最高的，但表明在其他温度条件下自由基的产生速率有所降低，可能是表面分子大量转化为自由基的结果。我们表明，紫外线会产生大量的自由基，并且正在进行修改EPR光谱仪的工作，以便可以在ERP腔中辐照TATB以测量自由基形成的初始速率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号