Synthesis and Characterization of PolyNIMMO-HTPB-polyNIMMO Triblock Copolymer as a Potential Energetic Binder
Synthesis and Characterization of PolyNIMMO-HTPB-polyNIMMO Triblock Copolymer as a Potential Energetic Binder
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DOI：
10.22211/cejem/92445
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发表时间：
2018-09
影响因子：
0.8
通讯作者：
Xiaochuan Wang;Y. Shu;Xianming Lu;H. Mo;Minghui Xu
中科院分区：
文献类型：
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作者：
Xiaochuan Wang;Y. Shu;Xianming Lu;H. Mo;Minghui Xu
以BF3·OEt2为催化剂，在端羟基聚丁二烯存在下，通过NIMMO(3-硝甲基-3-甲基氧烷)的阳离子开环聚合，合成了三嵌段共聚物Poly NIMMO-HTPB-PolyNIMMO。用红外光谱、核磁共振氢谱、核磁共振碳谱和凝胶渗透色谱对聚合物进行了表征。用差示扫描量热仪(DSC)研究了三嵌段共聚物的热行为，其放热峰位于215°C。这些结果表明，三嵌段共聚物PolyNIMMOHTPB-PolyNIMMO可能是一种潜在的含能推进剂粘结剂。
Triblock copolymer polyNIMMO-HTPB-polyNIMMO was synthesized by cationic ring opening polymerization of NIMMO (3-nitratomethyl-3methyloxetane) in the presence of hydroxyl-terminated polybutadiene catalyzed by BF3·OEt2. The polymer was characterized by FT-IR, 1H NMR, 13C NMR spectroscopy, and GPC. DSC was used to investigate the thermal behaviour of the triblock copolymer and its exothermic decomposition peak was found to be at 215 °C. All of the results indicated that the triblock copolymer polyNIMMOHTPB-polyNIMMO might serve as a potential energetic propellant binder.