醚基功能化离子液体[C<sub>2</sub>2O1IM][NTf<sub>2</sub>]+甲酰胺(FA)/二甲基甲酰胺(DMF)二元混合物的物理化学性质研究

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摘要 1-(2-甲氧基乙基)-3-乙基咪唑双三氟甲基磺酰亚胺盐([C₂2O1IM][NTf₂])作为醚基功能化离子液体具有热稳定性好、低黏度、较高的电导率等许多优良特性。对[C₂2O1IM][NTf₂]+甲酰胺(FA)/二甲基甲酰胺(DMF)二元混合物进行了研究,测定在温度15~50 ℃和大气压下整个组成范围内此二元混合物的密度ρ、声速u和黏度η。根据实验数据,计算了体系的超额摩尔体积V^E_m、等熵压缩系数偏差Δκ_s和黏度偏差Δη。所得结果用这些混合物中发生的分子间相互作用来解释。

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	杨嘉琳
	杜燕萍
	刘斌
	常薇
	侯海云
	王宁
	解佩敬
	杨思蒙

关键词：醚基功能化离子液体二元混合物物理化学性质

Abstract： 1-(2-methoxyethyl)-3-ethyl imidazole bis (trifluoromethyl) sulfonyl imide salt ([C₂2O1IM][NTf₂]) as ether functional ionic liquid has many excellent characteristics such as good thermal stability, low viscosity and high conductivity. In this work, the binary mixture of ([C₂2O1IM][NTf₂])+formamide (FA), dimethylformamide (DMF) was studied. The density ρ, sound velocity u and viscosity η of the binary mixture in the whole composition range were measured at the temperature range of 15—50 ℃ and atmospheric pressure. According to the experimental data, excess molar volume V^E_m, isentropic compression coefficient deviation Δκ_s and viscosity deviation Δη of the system were calculated. The results can be explained by intermolecular interactions in these mixtures.

Keywords： ether-functionalized ionic liquid binary mixture physicochemical properties

Received 2022-07-23;

Fund:国家自然科学基金青年科学基金项目(21603169,21703165,22008188)。

Corresponding Authors: 杜燕萍,副教授,E-mail:duyanping@xpu.edu.cn。 Email: duyanping@xpu.edu.cn

About author: 杨嘉琳(1998-),女,硕士研究生,现从事溶液化学方面的研究。

引用本文:

杨嘉琳, 杜燕萍, 刘斌, 常薇, 侯海云, 王宁, 解佩敬, 杨思蒙.醚基功能化离子液体[C₂2O1IM][NTf₂]+甲酰胺(FA)/二甲基甲酰胺(DMF)二元混合物的物理化学性质研究[J]. 化学工业与工程, 2023,40(6): 89-95

YANG Jialin, DU Yanping, LIU Bin, CHANG Wei, HOU Haiyun, WANG Ning, XIE Peijing, YANG Simeng.The physicochemical properties of binary mixture of ether functionalized ionic liquid [C₂2O1IM][NTf₂]+formamide (FA)/dimethylformamide (DMF)[J]. Chemcial Industry and Engineering, 2023,40(6): 89-95

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