| 离子液体[Mmim][DMP]与DMSO/乙腈二元体系的密度和黏度 |
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| 引用本文： | 王薪薪,周清,张晓春,张志博,吕兴梅,张锁江. 离子液体[Mmim][DMP]与DMSO/乙腈二元体系的密度和黏度[J]. 化工学报, 2020, 71(1): 177-191. DOI: 10.11949/0438-1157.20191361 |
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| 作者姓名： | 王薪薪 周清 张晓春 张志博 吕兴梅 张锁江 |
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| 作者单位： | 1. 中国科学院过程工程研究所离子液体清洁过程北京市重点实验室，北京 1001902. 中国科学院大学化学工程学院，北京 100049 |
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| 摘 要： | 离子液体因其特殊的内在结构及性能，使得其在纤维素预处理应用过程中展现出良好的效果，其相关体系的物性研究是推进工业化进程的基础必要数据。因此选用甲基咪唑和磷酸三甲酯合成了离子液体1,3-二甲基咪唑磷酸二甲酯([Mmim][DMP])，并测定了[Mmim][DMP] (1) + DMSO (2) 和 [Mmim][DMP] (1) + 乙腈 (2) 两个二元体系，在293.15~323.15 K时，全组成范围内的密度和黏度。计算了体积性质和超额性质数据。通过比较分析二元体系的超额摩尔体积(V E)、表观摩尔体积( )、无限稀释表观摩尔体积( )和偏摩尔体积( )数据，以及分子模拟手段讨论了离子液体与溶剂之间的作用形式，包括离子液体与溶剂之间形成的氢键对溶液性质的影响。
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| 关 键 词： | 离子液体 DMSO 乙腈 密度 黏度 |
| 收稿时间： | 2019-11-11 |
| 修稿时间： | 2019-11-21 |
Densities and viscosities of binary system containing 1,3-dimethylimidazolium dimethylphosphate and dimethyl sulfoxide or acetonitrile |
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| WANG Xinxin,ZHOU Qing,ZHANG Xiaochun,ZHANG Zhibo,LYU Xingmei,ZHANG Suojiang. Densities and viscosities of binary system containing 1,3-dimethylimidazolium dimethylphosphate and dimethyl sulfoxide or acetonitrile[J]. Journal of Chemical Industry and Engineering(China), 2020, 71(1): 177-191. DOI: 10.11949/0438-1157.20191361 |
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| Authors: | WANG Xinxin ZHOU Qing ZHANG Xiaochun ZHANG Zhibo LYU Xingmei ZHANG Suojiang |
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| Affiliation: | 1. Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China2. College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Due to its special structure and properties, ionic liquids have shown good results in the application of cellulose pretreatment. Relevant physical property data is indispensable in promoting the industrialization of ionic liquids. In this study, ionic liquid 1, 3-dimethylimidazolium dimethylphosphate ([Mmim][DMP]) was synthesized and the densities and viscosities for the binary systems of [Mmim][DMP] with dimethylsulfoxide (DMSO) or acetonitrile were measured in the temperature range from (293.15 to 323.15) K over the whole concentration. Then volume properties and excess property data was calculated and fitted. Based on the data of apparent molar volume , apparent molar volume at infinite dilution , partial molar volume , excess molar volume V E, and molecular simulation results, the influence of the interaction between IL and solvents and hydrogen bonds formed between IL and DMSO (or acetonitrile) were analyzed. |
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| Keywords: | ionic liquids DMSO acetonitrile density viscosity |
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