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Thermal and Mechanical Properties of Triazole Cross‐Linked Glycidyl Azide (GAP) and Azido Polycarbonate Networks
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-10-04 , DOI: 10.1002/prep.202000038 Jean‐Christophe St‐Charles 1 , Charles Dubois 1
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-10-04 , DOI: 10.1002/prep.202000038 Jean‐Christophe St‐Charles 1 , Charles Dubois 1
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Triazole cross‐linked energetic polymer networks obtained from the reaction of dialkyne curing agents with glycidyl azide polymers (GAP) or poly(2,2‐[bisazidomethyl]propane‐1,3‐diyl carbonate) (poly[BAMPC]) were studied, and their thermal and mechanical properties are reported. The dialkynes studied include bis(propargyl)ether (BPE), bis(propargyl)malonate (BPM), and 4,4’‐diacyanohepta‐1,6‐diyne (DCHD), three compounds previously described as curing agents for glycidyl azide pre‐polymers. The cured polymer networks display a wide range of properties dependent on the nature of the azido pre‐polymer, the nature of the dialkyne, the alkyne/azide molar ratio, and the molecular weight of the pre‐polymer used. Results confirm that the three dialkynes are effective curing agents able to form rigid networks out of either pre‐polymer and that the lighter molecular weight BPE and DCHD both improve mechanical properties of cured networks with less dilution of the system's energetic content. Triazole cross‐linked poly(BAMPC) networks were studied for the first time, and promising physical and mechanical properties are reported.
中文翻译：
三唑交联缩水甘油叠氮化物（GAP）和叠氮基聚碳酸酯网络的热力学性能
研究了由二炔固化剂与缩水甘油叠氮化物聚合物（GAP）或聚（2,2- [双叠氮甲基]丙烷-1,3-二碳酸二酯）（poly [BAMPC]）反应制得的三唑交联的高能聚合物网络，并报道了它们的热和机械性能。研究的二炔包括双（炔丙基）醚（BPE），双（炔丙基）丙二酸酯（BPM）和4,4'-二氰基庚基-1,6-二炔（DCHD），这三种化合物以前被称为缩水甘油基叠氮化物的固化剂。聚合物。固化的聚合物网络根据叠氮基预聚物的性质，二炔的性质，炔烃/叠氮化物的摩尔比以及所用预聚物的分子量，表现出广泛的性能。结果证实这三种二元酮是能够从任何一种预聚物中形成刚性网状结构的有效固化剂，并且分子量较低的BPE和DCHD均可改善固化后的网状结构的机械性能，同时降低了系统的含能量。首次研究了三唑交联的聚（BAMPC）网络，并报道了有希望的物理和机械性能。
更新日期：2020-11-05
中文翻译：
三唑交联缩水甘油叠氮化物（GAP）和叠氮基聚碳酸酯网络的热力学性能
研究了由二炔固化剂与缩水甘油叠氮化物聚合物（GAP）或聚（2,2- [双叠氮甲基]丙烷-1,3-二碳酸二酯）（poly [BAMPC]）反应制得的三唑交联的高能聚合物网络，并报道了它们的热和机械性能。研究的二炔包括双（炔丙基）醚（BPE），双（炔丙基）丙二酸酯（BPM）和4,4'-二氰基庚基-1,6-二炔（DCHD），这三种化合物以前被称为缩水甘油基叠氮化物的固化剂。聚合物。固化的聚合物网络根据叠氮基预聚物的性质，二炔的性质，炔烃/叠氮化物的摩尔比以及所用预聚物的分子量，表现出广泛的性能。结果证实这三种二元酮是能够从任何一种预聚物中形成刚性网状结构的有效固化剂，并且分子量较低的BPE和DCHD均可改善固化后的网状结构的机械性能，同时降低了系统的含能量。首次研究了三唑交联的聚（BAMPC）网络，并报道了有希望的物理和机械性能。
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