固体火箭技术
固體火箭技術
고체화전기술
JOURNAL OF SOLID ROCKET TECHNOLOGY
2014年
4期
525-529
,共5页
丁黎%郑朝民%翟高红%王琼林
丁黎%鄭朝民%翟高紅%王瓊林
정려%정조민%적고홍%왕경림
物理化学%相互作用%安定剂%硝酸酯%化学稳定性
物理化學%相互作用%安定劑%硝痠酯%化學穩定性
물이화학%상호작용%안정제%초산지%화학은정성
physical chemistry%interaction%stability%nitric acid ester%chemical stability
采用高压差示扫描量热( PDSC)和绝热加速量热( ARC)2种方法,研究了DPA、C2、AKII与NC-NG的相互作用;采用密度泛函理论B3LYP方法和6-31g( d)基组,优化得到了安定剂C2、AKII及其与H+作用后各中间体的稳定构型,计算了安定剂结合H+的反应能变,以解释该3种安定剂安定化作用的强弱。结果表明,3种安定剂与硝酸酯存在明显的相互作用,且安定剂对硝酸酯化学稳定性的影响由强到弱依次为DPA>C2>AKⅡ,与安定剂亲核性顺序一致。
採用高壓差示掃描量熱( PDSC)和絕熱加速量熱( ARC)2種方法,研究瞭DPA、C2、AKII與NC-NG的相互作用;採用密度汎函理論B3LYP方法和6-31g( d)基組,優化得到瞭安定劑C2、AKII及其與H+作用後各中間體的穩定構型,計算瞭安定劑結閤H+的反應能變,以解釋該3種安定劑安定化作用的彊弱。結果錶明,3種安定劑與硝痠酯存在明顯的相互作用,且安定劑對硝痠酯化學穩定性的影響由彊到弱依次為DPA>C2>AKⅡ,與安定劑親覈性順序一緻。
채용고압차시소묘량열( PDSC)화절열가속량열( ARC)2충방법,연구료DPA、C2、AKII여NC-NG적상호작용;채용밀도범함이론B3LYP방법화6-31g( d)기조,우화득도료안정제C2、AKII급기여H+작용후각중간체적은정구형,계산료안정제결합H+적반응능변,이해석해3충안정제안정화작용적강약。결과표명,3충안정제여초산지존재명현적상호작용,차안정제대초산지화학은정성적영향유강도약의차위DPA>C2>AKⅡ,여안정제친핵성순서일치。
The interaction of stability and nitric acid ester were studied by PDSC and ARC.The result show that decomposition temperature of nitric acid ester decreases because of adding stability. The structures of C2, AKII and its complexes with the H+, namely( C2+H)+( C?O) ,( AKⅡ+H)+( C?O) ,( AKⅡ+H)+( C-N) ,were optimized using the density function theory( DFT) at the B3LYP/6-31g(d)level.The energy of stability reacted with H+ calculated at B3LYP/6-31g(d)was used to explain ability of stability.It was obvious interaction between stability and nitric acid ester,and the influence on chemical stability of nitric acid ester from strong to weak were DPA>C2>AKⅡ,which is in accord with nucleophilic ability.