کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4907469 | 1426206 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A comparative study on the interactions of [bmim][NTf2] ionic liquid with selected four- to seven-membered-ring lactones
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Experimental densities and viscosities of binary mixtures of 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquid, [bmim][NTf2], with selected lactones, namely: β-butyrolactone (BBL), γ-valerolactone (GVL), δ-valerolactone (DVL) and ε-caprolactone (ECL), are measured at atmospheric pressure (p = 0.1 MPa) in the temperature range from T = (293.15 to 323.15) K over the whole composition range. From the experimental density and viscosity results, we data calculated excess parameters and fitted using Redlich-Kister's polynomial equation. The thermal expansion coefficients are also derived from the acquired experimental density values. Derived density and viscosity are compared with available literature data for the corresponding {[bmim][NTf2] + GBL (γ-butyrolactone)} binary mixtures. Volumetric and viscometric parameters indicate different interactions and geometrical fitting of the lactone molecule with ionic liquid depending on the number of carbon atoms of the lactone. Thermodynamic parameters of viscous flow are also calculated. The influence of the molecular solvent structure and effects of the lactones properties on the nature of interactions in the studied binary mixtures with [bmim][NTf2] are discussed from the obtained volumetric and viscosity values and also density functional theory calculations provided in this work.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 107, April 2017, Pages 170-181
Journal: The Journal of Chemical Thermodynamics - Volume 107, April 2017, Pages 170-181
نویسندگان
Snežana PapoviÄ, Slobodan GadžuriÄ, Aleksandar Tot, Marija BeÅ¡ter-RogaÄ, Ksenija PavloviÄ, Milan VraneÅ¡,