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Novel Geminal Dinitro Esters As Energetic Plasticizers for GAP Binder
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-03-02 , DOI: 10.1021/acs.iecr.0c06078 Yinglei Wang 1, 2 , Yajing Liu 1 , Baodong Zhao 1 , Fulei Gao 1 , Weixiao Liu 1 , Bin Chen 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-03-02 , DOI: 10.1021/acs.iecr.0c06078 Yinglei Wang 1, 2 , Yajing Liu 1 , Baodong Zhao 1 , Fulei Gao 1 , Weixiao Liu 1 , Bin Chen 1
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Novel geminal dinitro ester energetic plasticizers (DNEPs) were designed with different alkane lengths in the mainchain, namely 2,2-dinitropropyl acetate (DNPAc), 2,2-dinitropropyl propionate (DNPPc), and 2,2-dinitropropyl propionate (DNPBc). Due to the incorporation of ester and dinitro groups, these three DNEPs were expected to possess high heat of formations and thermal decomposition temperatures (Tp) and lower glass transition temperatures (Tg). Likewise, their impact sensitivities were all measured as higher than 25.2 J. Due to the maximum alkane length of DNPBc, DNPBc possesses the highest Tp and the lowest Tg. As plasticizers for glycidyl azide polymer (GAP), DNEPs significantly improve the viscosity and Tg of GAP. Particularly, the plasticizing efficiency of DNPBc is higher than that of the reported N-butyl nitroxyethyl nitramine (BuNENA). Likewise, the specific impulses of GAP/HMX based compositions with DNEPs as energetic plasticizers were all slightly higher than that of BuNENA. Therefore, these DNEPs (especially DNPBc) exhibit promising potential as candidates for replacement of BuNENA in GAP based propellants.
中文翻译：
新型Geminal Dinitro Esters作为GAP粘合剂的高能增塑剂
设计了新颖的双二硝基酯高能增塑剂（DNEPs），主链上具有不同的烷烃长度，分别是乙酸2,2-二硝基丙基丙酯（DNPAc），丙酸2,2-二硝基丙基丙酯（DNPPc）和2,2-二硝基丙基丙酸酯（DNPBc） 。由于结合了酯基和二硝基基团，这三种DNEP预期具有较高的地层热和热分解温度（T p）和较低的玻璃化转变温度（T g）。同样，测得它们的冲击敏感性均高于25.2J。由于DNPBc的最大烷烃长度，DNPBc具有最高的T p和最低的T g。DNEP作为缩水甘油叠氮化物聚合物（GAP）的增塑剂，可显着提高GAP的粘度和T g。特别地，DNPBc的增塑效率高于所报道的N-丁基硝基氧乙基硝胺（BuNENA）的增塑效率。同样，具有DNEP作为高能增塑剂的GAP / HMX基组合物的比冲均略高于BuNENA。因此，这些DNEP（尤其是DNPBc）具有潜在的潜力，可以替代基于GAP的推进剂中的BuNENA。
更新日期：2021-03-17
中文翻译：
新型Geminal Dinitro Esters作为GAP粘合剂的高能增塑剂
设计了新颖的双二硝基酯高能增塑剂（DNEPs），主链上具有不同的烷烃长度，分别是乙酸2,2-二硝基丙基丙酯（DNPAc），丙酸2,2-二硝基丙基丙酯（DNPPc）和2,2-二硝基丙基丙酸酯（DNPBc） 。由于结合了酯基和二硝基基团，这三种DNEP预期具有较高的地层热和热分解温度（T p）和较低的玻璃化转变温度（T g）。同样，测得它们的冲击敏感性均高于25.2J。由于DNPBc的最大烷烃长度，DNPBc具有最高的T p和最低的T g。DNEP作为缩水甘油叠氮化物聚合物（GAP）的增塑剂，可显着提高GAP的粘度和T g。特别地，DNPBc的增塑效率高于所报道的N-丁基硝基氧乙基硝胺（BuNENA）的增塑效率。同样，具有DNEP作为高能增塑剂的GAP / HMX基组合物的比冲均略高于BuNENA。因此，这些DNEP（尤其是DNPBc）具有潜在的潜力，可以替代基于GAP的推进剂中的BuNENA。
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