کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5409452 | 1506544 | 2017 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dicationic imidazolium based ionic liquids: Synthesis and properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present work, four dicationic ionic liquids (DILs) having 1,1-Bis(3-methylimidazolium-1-yl) butylene ([C4(Mim)2]) cation with counter anions namely hydrogensulfate, methanesulfonate, trifluoromethanesulfonate, and paratoluene sulfonate were synthesized and characterized. The structures of ILs were confirmed by 1H NMR, 13C and elemental analysis (CHNS). The effect of temperature and anion type on thermophysical properties such as refractive index, density and viscosity were studied. Density and viscosity values were measured within the temperature range of 293.15-273.15Â K. Moreover, thermal expansion coefficient, molecular volume, molar volume, free volume, standard entropy, and lattice energy were derived from the density and viscosity values. Viscosity values were used for calculation of activation energy using the Arrhenius equation. Refractive index values were measured in the temperature range of 293.15-323.15Â K and the values of refractive index were used further to estimate the electronic polarizability using Lorenz-Lorentz equation. Thermal properties of the synthesized DILs were determined using thermogravimetric analyzer (TGA) and differential scanning calorimetry (DSC).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 227, February 2017, Pages 98-105
Journal: Journal of Molecular Liquids - Volume 227, February 2017, Pages 98-105
نویسندگان
Amir Sada Khan, Zakaria Man, Annie Arvina, Mohammad Azmi Bustam, Asma Nasrullah, Zahoor Ullah, Ariyanti Sarwono, Nawshad Muhammad,