Densities, viscosities, and electrical conductivities were determined and discussed for a binary mixture containing 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid, [bmpyrr][NTf₂], and diethyl carbonate (DEC) as a function of temperature (T = 293.15–323.15 K) at atmospheric pressure (p = 0.1 MPa) over the entire range composition. Based on experimental density data, the related excess molar volumes were calculated and fitted using Redlich–Kister’s polynomial equation. The Casteel–Amis equation was used to correlate data obtained from electrical conductivity measurements. The effect of viscosity on electrical conductivity was discussed by the Walden rule. The Bahe–Varela theory, derived from the the pseudo-lattice model, has been successfully applied to explain the influence of the mixture composition on electrical conductivity. Based on physicochemical characterization supported with computational simulations for binary mixtures ([bmpyrr][NTf₂] + DEC), the interactions between these components were discussed.

中文翻译：

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含离子液体1-丁基-1-甲基吡咯烷鎓双（三氟甲基磺酰基）酰亚胺和碳酸二乙酯的二元混合物的物理化学研究

确定并讨论了包含1-丁基-1-甲基吡咯烷鎓双（三氟甲基磺酰基）酰亚胺离子液体，[bmpyrr] [NTf ₂ ]和碳酸二乙酯（DEC）的二元混合物的密度，粘度和电导率随温度的变化（T = 293.15–323.15 K），在大气压（p= 0.1 MPa）在整个量程范围内。根据实验密度数据，使用Redlich-Kister多项式方程计算并拟合了相关的过量摩尔体积。Casteel–Amis方程用于关联从电导率测量获得的数据。沃尔登法则讨论了粘度对电导率的影响。从伪格模型推导出的Bahe-Varela理论已成功地用于解释混合物组成对电导率的影响。基于二元混合物（[bmpyrr] [NTf ₂ ] + DEC）的计算仿真所支持的理化特性，讨论了这些组分之间的相互作用。