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Evaluating the bis-isoxazole core for energetic heterocyclic-based oligomers
Polymer Chemistry ( IF 4.6 ) Pub Date : 2020-08-05 , DOI: 10.1039/d0py00875c
Taylor A. Manes 1, 2, 3, 4 , Gregory H. Imler 4, 5, 6 , Kyle T. Sullivan 1, 2, 3, 4 , Eric V. Bukovsky 1, 2, 3, 4
Affiliation  

Development of energetic polymers is at the forefront of the energetics research enterprise. Formulations having high energy density as well as robust safety are goals that can be realized with implementation of new energetic polymers that target performance and mechanical properties. Presented herein are a series of oligomers synthesized from the small molecule BIDO (1) as our group's first attempt at making heterocyclic based energetic polymers without sensitive explosophores. Crystallographic investigation of the BIDO core with surrogate addends demonstrated the significant stacking ability of the BIDO core. Synthesis of four unique oligomers (3–6) is presented and characterized by spectroscopic and thermochemical measurements. Polymerization of 6 was demonstrated and tested for Tg and thermal sensitivity, and Shore A hardness. The polymer 7 exhibits a Tg value (−18 °C), close to the operating range of other energetic materials, a Shore A hardness of 81, and thermally stable up to 320 °C.

中文翻译:

评估基于高能杂环的低聚物的双-异恶唑核心

高能聚合物的开发处于高能研究企业的最前沿。具有高能量密度和稳健安全性的配方是可以通过实施针对性能和机械性能的新型高能聚合物来实现的目标。本文介绍的是由小分子BIDO(1)合成的一系列低聚物,这是我们小组首次尝试制备基于杂环的高能聚合物而没有敏感的炸药。具有替代附加物的BIDO核心的晶体学研究表明,BIDO核心具有显着的堆叠能力。介绍了四种独特的低聚物(3–6)的合成,并通过光谱和热化学测量对其进行了表征。聚合6证明并测试了T g和热敏性以及Shore A硬度。聚合物7显示出T g值(-18°C),接近其他高能材料的工作范围,肖氏A硬度为81,在高达320°C的温度下具有热稳定性。
更新日期:2020-10-06
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