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题名: Evaluation of the Walden Product of Ionic Liquids Using Experiments and a New Theory: An Ion Exchange Transition Model
作者: Zheng Ling1; Pan Yi1; Ji Hong-Xiang1; Ma Xiao-Xue1, 3; Xing Nan-Nan1; Guan Wei1, 2
关键词: Ionic liquid ; Conductivity ; Viscosity ; Transition model ; Walden product
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 2016-11-15
卷: 32, 期:11, 页:2663-2670
收录类别: SCI
英文摘要: A new theory has been developed to evaluate the Walden product, W, of ionic liquids using an ion exchange transition model. This model showed that the product (Walden) of molar conductivity and dynamic viscosity is related to the average diameters of the ion pairs and ion clusters of ionic liquids (ILs) with 1 : 1 charge ratios, namely, different ILs have different Wvalues. Several experiments were conducted to evaluate the validity of this model. Eight different ILs, including five N-alkyl-pyridinium dicyanamide ILs [C(n)py][DCA] (n = 2-6) and three N-alkyl-3-methyllimidazolium serine ILs [C(n)mim][Ser] (n = 2-4) were successfully synthesized and evaluated in terms of their conductivity and dynamic viscosity properties. The Wvalues of 33 different ILs were calculated based on their experimentally determined molar conductivity and dynamic viscosity values, and the results revealed that these values were consistent with those of the ion exchange transition model. Taken together, these results demonstrate that W is a key physical parameter for ILs.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35689
Appears in Collections:其它_期刊论文

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作者单位: 1.Liaoning Univ, Coll Chem, Shenyang 110036, Peoples R China
2.Liaoning Univ, Sch Environm Sci, Shenyang 110036, Peoples R China
3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China
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