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Other TitleSynthesis and characterization of urethane binder for rocket propellants
Author(jpn)寒河江, 祐司; 吉野, 悟; 小森谷, 友絵; 坂本, 恵一; 羽生, 宏人
Author(eng)Sagae, Yuji; Yoshino, Satoru; Komoriya, Tomoe; Sakamoto, Keiichi; Habu, Hiroto
Author Affiliation(jpn)日本大学; 日本大学; 日本大学; 日本大学; 宇宙航空研究開発機構宇宙科学研究所宇宙飛翔工学研究系(JAXA)(ISAS); 宇宙航空研究開発機構宇宙科学研究所宇宙飛翔工学研究系(JAXA)(ISAS)
Author Affiliation(eng)Nihon University; Nihon University; Nihon University; Nihon University; Department of Space Flight Systems, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
Issue Date2015-03-13
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構研究開発報告: 高エネルギー物質研究会: 平成26年度研究成果報告書
JAXA Research and Development Report
Start page27
End page32
Publication date2015-03-13
Abstract本研究の目的は,2,2-ジニトロプロパン-1,3-ジオール(DNPD)を用いて,ニトロ基を含むポリウレタンおよびアジド基を有したポリウレタンの合成および熱的特性を検討した.構造解析は、赤外分光分析法(IR)とプロトン核磁気共鳴(1H-NMR)を用いた.熱的特性は示差熱熱重量同時測定(TG-DTA)および密閉セル-示差走査熱量測定(SC-DSC)を用いた。合成はポリテトラメチレンエーテルグリコール(PTMG)に4,4-ジフェニルメタンジイソシアネートを加えて90 Cで20分間撹拌したのち,DNPD, N,N-ジメチルホルムアミド(DMF)を加え,更に10分間撹拌を続けたのち,80 Cで3時間減圧乾燥し生成物を得た. 生成物のIRスペクトルの結果から,1740 cm(exp -1)にC=O伸縮振動,1530 cm(exp -1)にN-H変角振動が確認された.TG-DTA曲線の結果から生成物は,500 Cで85 %質量減少し,297-420 Cで発熱挙動を示した.
The purpose of this study is synthesis and thermal characterization of polyurethane containing nitro groups and azide groups using 2,2-Dinitropropan-1,3-diol (DNPD). Structural analysis were used by infrared spectroscopy (IR) and hydrogen nuclear magnetic resonance (1H-NMR). Thermal properties were used thermogravimetry-differential thermal analysis (TG-DTA) and sealed cell differential scanning calorimetry (SC-DSC). Synthesis of polyurethane containing nitro groups in following, a mixture of poly tetramethylene ether glycol (PTMG) and 4,4-diphenyimethane diisocyanate (MDI) were stirred at 90 C for 20 minutes. The mixture were provided in to solvent, N,N-dimetylformamide and added DNPD, and then the mixture was stirred at 90 C for 10 minutes. The products were dried in vacuo at 80 C for 3 hours. The IR, C=O stretching vibration (1730 cm(exp -1)), N-H bending vibration (1530 cm(exp -1)) appeared in the IR spectrum. The products exhibited exotherm at temperature range of 297-420 C, and mass loss of 85 % at 500 C from the TG-DTA curves.
Description形態: カラー図版あり
Physical characteristics: Original contains color illustrations
Document TypeTechnical Report
JAXA Category研究開発報告
NASA Subject CategoryPropellants and Fuels
Report NoJAXA-RR-14-005

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