PolyNIMMO-HTPE-polyNIMMO triblock copolymer as a potential energetic binder: Synthesis and characterization
PolyNIMMO-HTPE-polyNIMMO triblock copolymer as a potential energetic binder: Synthesis and characterization
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PolyNIMMO-HTPE-polyNIMMO 三嵌段共聚物作为潜在的含能粘合剂：合成和表征
DOI：
10.1016/j.eurpolymj.2019.07.014
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发表时间：
2019-10
影响因子：
6
通讯作者：
Xiao-chuan Wang
中科院分区：
文献类型：
--
作者：
Qian Zhang;Ning Liu;Ming-hui Xu;Ling Ma;Xian-ming Lu;Yuan-jie Shu;Xiao-chuan Wang
以3-硝甲基-3-甲氧基硅烷(NIMMO)为原料，以大分子引发剂(HTPE)为引发剂，通过开环共聚反应合成了一种新型含能聚合物粘结剂。三嵌段共聚物的结构经红外光谱、核磁共振氢谱、核磁共振碳谱和凝胶渗透色谱确证。与HTPE相比，PolyNIMMO-HTPE-PolyNIMMO具有更高的粘度，这是因为其分子量增加，增加了单键OO2作为侧基，并加强了分子间相互作用。玻璃化转变温度研究表明，在其DSC曲线上有两个玻璃化转变过程。−69 °C附近的一个信号来自HTPE链段，而−30 °C附近的另一个信号与三嵌段聚合物中的末端多NIMMO链段有关。TGA-DTG和DSC曲线表明，聚NIMMO-HTPE-PolyNIMMO具有良好的热稳定性，其热分解峰位于220THPE-PolyNIMMO°C附近。用ASTME698和FWO提出的非等温法从DSC数据中获得了热分解的动力学参数和热力学参数。这些结果表明，三嵌段共聚物PolyNIMMO-HTPE-PolyNIMO可能是一种潜在的含能推进剂粘结剂。
A novel energetic polymer binder was developed through ring opening copolymerization of 3-nitratomethyl-3-methyloxetane (NIMMO) with (HTPE) as a macroinitiator to form tri-block copolymer polyNIMMO-HTPE-polyNIMMO. The structure of tri-block copolymer was confirmed by FTIR,1H NMR,13C NMR and GPC. In comparison with HTPE, polyNIMMO-HTPE-polyNIMMO has a higher viscosity because of its increased molecular weight with additional single bondONO2as side groups and strengthened intermolecular interaction. The glass transition temperature studies show two glass transition processes in their DSC curves. One signal around −69 °C arises from the HTPE segment, while the other signal around −30 °C is related to the terminal polyNIMMO segments in the tri-block polymers. The TGA-DTG and DSC curves indicate that polyNIMMO-HTPE-polyNIMMO has a good thermal stability and its exothermic decomposition peak is found to be around 220 °C. The kinetic parameters and the thermodynamic parameters for the thermal decomposition of polyNIMMO-HTPE-polyNIMMO-IV are obtained from the DSC data by non-isothermal methods proposed by ASTM E698 and FWO. These results demonstrate that tri-block copolymer polyNIMMO-HTPE-polyNIMO might be a potential energetic propellant binder.
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影响因子：
3
作者：
Arjun Singh;Pratibha Soni;T. Shekharam;A. Srivastava
通讯作者：
Arjun Singh;Pratibha Soni;T. Shekharam;A. Srivastava
影响因子：
13.6
作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
A. S. Tompa;R. Boswell
通讯作者：
A. S. Tompa;R. Boswell
影响因子：
3.2
作者：
Xu, Minghui;Ge, Zhongxue;Hu, Huaiming
通讯作者：
Hu, Huaiming