CAJ | 학술논문

研究了一类新型的非对称双阳离子型离子液体的合成及物理化学性质，为该类离子液体的工业应用奠定理论基础。以3-溴丙基三甲基溴化铵、吡啶和4-甲基吗啉为阳离子母体设计合成了一类非对称双阳离子型离子液体，产品进行了IR和H1 NMR表征。通过差示扫描量热仪(DSC)测定了离子液体1-(4-甲基吗啉鎓基)-3-(三甲胺鎓)丙烷双三氟磺酰亚胺盐([MpC3N111][NTf2]2)和1-(吡啶鎓基)-3-(三甲胺鎓)丙烷双三氟磺酰亚胺盐([PyC3N111][NTf2]2)的热力学性质，得到了其熔点、相变焓和相变熵的值。对热容数据进行多项式拟合，得到了以298.15 K为参考温度的固相区和液相区的热力学方程。利用非等温热重分析法(TG)，研究了高纯氮气气氛下离子液体[MpC3N111][N(CN)2]2和[PyC3N111][N(CN)2]2的热分解动力学，通过 ASTM 法和 Ozawa-Flynn-Wall 法对不同升温速率下的热分解数据进行关联，得到了反应活化能Ea和指前因子lgA，两种方法得到的结果基本一致。
연구료일류신형적비대칭쌍양리자형리자액체적합성급물이화학성질，위해류리자액체적공업응용전정이론기출。이3-추병기삼갑기추화안、필정화4-갑기마람위양리자모체설계합성료일류비대칭쌍양리자형리자액체，산품진행료IR화H1 NMR표정。통과차시소묘량열의(DSC)측정료리자액체1-(4-갑기마람옹기)-3-(삼갑알옹)병완쌍삼불광선아알염([MpC3N111][NTf2]2)화1-(필정옹기)-3-(삼갑알옹)병완쌍삼불광선아알염([PyC3N111][NTf2]2)적열역학성질，득도료기용점、상변함화상변적적치。대열용수거진행다항식의합，득도료이298.15 K위삼고온도적고상구화액상구적열역학방정。이용비등온열중분석법(TG)，연구료고순담기기분하리자액체[MpC3N111][N(CN)2]2화[PyC3N111][N(CN)2]2적열분해동역학，통과 ASTM 법화 Ozawa-Flynn-Wall 법대불동승온속솔하적열분해수거진행관련，득도료반응활화능Ea화지전인자lgA，량충방법득도적결과기본일치。
A series of asymmetrical dicationic ionic liquids based on trimethylaminium cation using (3-bromoproryl)trimethylammonium bromide, pyridinium and 4-methylmorpholinium as cation matrices were synthesized. These asymmetrical dicationic ionic liquids were characterized by IR and 1H NMR. The heat capacities of these dicationic ionic liquids were determined by differential scanning calorimeter (DSC) and the melting points, molar enthalpies and entropies of fusion were obtained. Moreover, the molar heat capacities of [MpC3N111][NTf2]2 and [PyC3N111][NTf2]2 were fitted to polynomials, and the thermodynamic functions of [MpC3N111][NTf2]2 and [PyC3N111][NTf2]2 relative to a reference temperature of 298.15 K were derived based on the heat capacities. The thermal decomposition kinetics of [MpC3N111][N(CN)2]2 and [PyC3N111][N(CN)2]2 were studied using non-isothermal thermogravimetric analysis (TG) under nitrogen atmosphere, and the heating curves at different rates were correlated with ASTM and Ozawa-Flynn-Wall equations, respectively. In addition, the activation energy, Ea, and logarithmic pre-exponential factor, lgA, were obtained,and the results of the two methods are consistent.