固体火箭技术2023，Vol.46Issue(6)：833-841,9.DOI:10.7673/j.issn.1006-2793.2023.06.005
含叠氮基和硝基新型增塑剂的设计、合成与性能
Design,synthesis and properties of two novel plasticizers with azido and nitro
宁二龙 1杨琳琳 2王志昌 2刘长波 2薛金强2
作者信息
- 1. 郑州大学 化工学院,郑州 450001||黎明化工研究设计院有限责任公司,洛阳 471000
- 2. 黎明化工研究设计院有限责任公司,洛阳 471000
- 折叠
摘要
Abstract
In terms of the outstanding glass transition temperature(Tg=-101℃)but unfavorable enthalpy of formation(-702 kJ·mol-1)of the energetic plasticizer DNPH(2,2-dinitropropylhexanoate),monoazido DNPAH(2,2-dinitropropyl-6-azidohex-anoate)and diazido DNPDAH(2,2-dinitropropyl-5,6-diazidohexanoate)were designed and synthesized.Their novel structures were thoroughly characterized by 1 H-NMR,FTIR and EA.Compared with the parent DNPH,the enthalpies of formation for DN-PAH(-417.8 kJ·mol-1)and DNPDAH(-113.4 kJ·mol-1)were impressively improved by 40.5%and 83.9%,respectively.It reveals that the plasticizer energy could be significantly increased by introducing the azido group.What's more,Tg for DNPAH and DNPDAH are-99℃and-80℃.In addition,the low mobile DNPAH is insensitive to thermal and mechanical stimulus as well as low volatility.The favorable compatibility between DNPAH and PBT(3,3-bis(azidomethyl)oxetane tetrahydrofuran copolyether)is confirmed by molecular dynamic(MD)simulation and experimental study.With the same plasticizing ratio,Tg of the PBT and DN-PAH blend is even lower than that of the established binary mixture with BDNPF/A(bis(2,2-dinitroproponyl)formal/acetal)or BuNENA(N-butylnitroxyethylnitramine)as a plasticizer.It should be noted that when the plasticizing ratio is 2 ∶ 1,Tg of the blend is lower to be up to-88℃.DNPAH could be used as an energetic plasticizer for the PBT-based propellant.关键词
玻璃化转变温度/增塑剂/生成焓/叠氮基/相容性/增塑Key words
glass transition temperature/plasticizer/enthalpy of formation/azido group/compatibility/plasticizing分类
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宁二龙,杨琳琳,王志昌,刘长波,薛金强..含叠氮基和硝基新型增塑剂的设计、合成与性能[J].固体火箭技术,2023,46(6):833-841,9.
