CAJ | 학술논문

以硝基胍（NQ）为原料、100％硝酸/20％发烟硫酸/硝酸铵为硝化体系，经硝化反应合成了1，2-二硝基胍（DNG）。用IR、1 H NMR、13 C NMR、MS表征了DNG的结构。研究了影响DNG产率和正交实验的因素。用TG和 DSC研究了DNG的热分解行为。结果表明，硝化反应的优化条件为n（HNO3）瞷n（NQ）瞷n（NH4 NO3）＝15瞷2瞷1，V（H2 SO4）瞷V（HNO3）＝1．25瞷1，反应时间为8 h，反应温度为10℃。优化条件下DNG产率达61．76％。 DNG的 DSC曲线峰温为182．83℃，显示DNG有良好的热稳定性。
이초기고（NQ）위원료、100％초산/20％발연류산/초산안위초화체계，경초화반응합성료1，2-이초기고（DNG）。용IR、1 H NMR、13 C NMR、MS표정료DNG적결구。연구료영향DNG산솔화정교실험적인소。용TG화 DSC연구료DNG적열분해행위。결과표명，초화반응적우화조건위n（HNO3）간n（NQ）간n（NH4 NO3）＝15간2간1，V（H2 SO4）간V（HNO3）＝1．25간1，반응시간위8 h，반응온도위10℃。우화조건하DNG산솔체61．76％。 DNG적 DSC곡선봉온위182．83℃，현시DNG유량호적열은정성。
1,2-Dinitroguanidine(DNG) was synthesized via the nitration reaction using nitroguanidine(NQ) as raw material and 100%nitric acid/20% oleum/ammonium nitrate as nitrating system.The structure of DNG were identified by IR, 1 H NMR, 13 C NMR and MS.The factors affecting the yield of DNG and orthogonal experiment were investigated.The thermal decomposi-tion behavior of DNG was studied using TG and DSC.The results show that the optimized conditions of the nitration reaction are:n(HNO3 ):n(NQ):n(NH4 NO3 )=15:2:1,V(H2 SO4 ):V(HNO3 )=1.25:1, the reaction time 8 h and reaction tempera-ture 10 ℃.The yield of DNG can reach up to 61.76% under the optimized conditions.The peak temperature of DSC curve for DNG is 182.83 ℃, indicating that DNG has a better thermal stability.