含能配位聚合物[Cu(tza)_2]_n的晶体结构、热分析、感度和催化性能  

Crystal Structure,Thermal Properties,Sensitivity Test and Catalytic Activity of Energetic Compound[Cu(tza)_2]_n

作　　者：汤崭[1] 张国涛[1] 张同来[1] 李志敏[1] 杨利[1] 张建国[1] 乔小晶[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《高等学校化学学报》2011年第8期1870-1875,共6页Chemical Journal of Chinese Universities

基　　金：爆炸科学与技术国家重点实验室自主探索基金(批准号:YBKT10-05);重点资助基金(批准号:ZDKT10-01b)资助

摘　　要：以碱式碳酸铜和四氮唑乙酸在水中反应制备得到四唑乙酸铜(Ⅱ)含能配位聚合物[Cu(tza)2]n,并培养出单晶.运用元素分析、FTIR分析和X射线单晶衍射对含能配位聚合物的组成和结构进行了表征,采用差示扫描量热分析(DSC)和热重-微分热重分析(TG-DTG)研究了含能配位聚合物的热分解过程,结果表明,[Cu(tza)2]n的热分解包含3个放热峰.用Kissinger和Ozawa-Doyle法对第1个放热分解过程进行了动力学研究,计算得到其活化能为356.1 kJ/mol.配合物的撞击、摩擦、火焰感度和5 s爆发点测试结果表明,[Cu(tza)2]n具有一定的感度.同时研究了[Cu(tza)2]n对环三次甲基三硝铵(RDX)热分解的影响,结果表明,[Cu(tza)2]n可以使RDX的放热分解峰温提前16.7℃,使分解速度加快,对RDX具有良好的催化作用.Copper based on tetrazole-1-acetate acid [Cu（tza）2]n was synthesized with tetrazole-1-acetate acid（Htza） and cupric carbonate basic in aqueous solution,and its single crystal was obtained.The molecular formula and structure of [Cu（tza）2]n was characterized by the elemental analysis and FTIR techniques,and the result is in accordance with the X-ray single crystal diffraction data.The thermal decomposition process of [Cu（tza）2]n was investigated by differential scanning calorimetry（DSC） and thermogravimetry-derivative thermogravimetry（TG-DTG）.Resuls indicated the thermal decomposition of [Cu（tza）2]n displayed three exothermic decompositions,and the first exothermic decomposition kinetic parameters Ea and A of [Cu（tza）2]n were calculated by the Kissinger method and Ozawa-Doyle method.According to the standard test method GJB 770A-97,the friction sensitivity,impact sensitivity,flame sensitivity and 5 s ignition point of the compound were measured.Results demonstrated the compound had a certain degree sensitivity and [Cu（tza）2]n could be applied in potential energetic material.Thermal decomposition data of mixture of [Cu（tza）2]n and C3H6N3（NO2）3（RDX） demonstrates that the addition of [Cu（tza）2]n makes the onset temperature and peak temperature of RDX shift downwards,and the thermal decomposition of RDX is accelerated due to the catalyst of the [Cu（tza）2]n,which can provide theoretical support to further performance study as [Cu（tza）2]n is added to the propellant formulations to regulate the burning rate.

关 键 词：含能配位聚合物 四氮唑乙酸 晶体结构 热分析 催化性能 

分 类 号：O64[理学—物理化学]