欢迎来到天天文库
浏览记录
ID:36430204
大小:3.84 MB
页数:89页
时间:2019-05-10
《DNAZ含能盐和衍生物的合成、结构、热行为、非等温热分解动力学及理论研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西北大学硕士学位论文DNAZ含能盐和衍生物的合成、结构、热行为、非等温热分解动力学及理论研究姓名:管玉雷申请学位级别:硕士专业:工业催化指导教师:宋纪蓉20090613AbstractMulti—nitroazetidinesareoneoftheimportantnewhighdensityenergeticmaterialsbecauseofitshi曲strainenergyassociatedwiththeirfour-memberring.Soitisimportanttostudythesynthesisandpropertiesofmulti-nitroazetidinesfor
2、thetheoreticalstudyandmilitaryapplications.SixenergeticsaltsandtwoenergeticderivativesofDNAZweresynthesizedbysomeimprovementonpatentmethods,andtheeightcompoundswerecharacterizedbyelementalanalysis,IRandNMR.Thesin西ecrystalsoffourcompoundswereobtainedbyslowevaporationofasolventatroomtemperatureandthei
3、rcrystalstructuresweredeterminedbyafour-circleX—raydiffractometer.Thefourcompoundsare:DNAZ·HCl04,DNAZ·BHA,(DNAZ·CObandN-Benzoyl—DNAZ.ThemoleculargeometriesandelectronicsstructuresoffourcompoundsincludingDNAZ’HCl04,DNAZ。BHA,(DNAZ·CObandN-Bermoyl—DNAZwereoptimizedwithDensity-FunctionalTheory(DFT)metho
4、dofAmsterdamDensityFunctional(ADF).Additionally,Mawrbondorders,Hirshfeldchargesofatoms,frontierorbitalenergywerecalculatedandtherelationshipwiththestabilityofthecompoundwasdiscussed.TheDSC,TG/DTGtechniqueswereusedtostudythethermalbehaviorofBDNAZ‘HCl04,DNAZ‘HN03,DNAZ·HCl04,,DNAZ‘3,5一DBNA,(DNAZ。HOOCh,
5、DNAZ’BHA,(DNAZ-CObandN-Benzoyl—DNAZunderanon—isothermalcondition.TheKissingermethod,Ozawamethod,thedifferentialmethodandtheintegralmethodwerecarriedouttodeterminethekineticparameters,theapparentactivationenergy(目andthepre—exponential似)of(DNAZ。HOOC)2andDNAZ·HCl04intheexothermicprocesses.Thethermaldec
6、ompositionmechanismfunctionweregotandthevalue(‰o)ofthepeaktemperature(昂)correspondingtop0,thecriticaltemperatureofthermalexplosion(Tb),theentropyofactivation(ASj,enthalpyofactivation(M-/jandGibbsfreeenergyofactivation(AGjwereobtained.Thetemperature—resistantregularityofthecompoundswasalsodiscussed.T
7、hespecificheatcapacityofBDNAZ‘HCl04,DNAZ·HN03,DNAZ‘HCl04,TTDNAZ·3,5一DBNA,(DNAZ·HOOC)2,(DNAZ—C0)2andN-Benzoyl—DNAZweredeterminedwithcontinuouscDmodeofmircocalorimeter(Micro-DSCHI).Usingthedeterminedrel
此文档下载收益归作者所有