کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5410104 | 1506551 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Excess properties and spectroscopic studies for binary system of polyethylene glycol 600Â +Â 1,2-ethanediamine at TÂ =Â (298.15, 303.15, 308.15, 313.15, and 318.15) K
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Density (Ï) and viscosity (η) data for the binary system of polyethylene glycol 600 (PEG) + 1,2-ethanediamine (EDA) over the entire concentration range at a number of temperatures T = (298.15, 303.15, 308.15, 313.15, and 318.15) K as a function of composition were measured under atmospheric pressure. On the basis of experimental density and viscosity data, the excess properties of PEG (1) + EDA (2) mixtures, including excess molar volumes (VmE), viscosity deviations (â η), excess free energies of activation (â G*E), apparent molar volumes (VÏ,1 and VÏ,2), partial molar volumes (V1Ì
and V2Ì
), and isobaric thermal expansion coefficient (αp), were calculated. Meanwhile, the values of VmE, â η, and â G*E were fitted with the Redlich-Kister equation to derive coefficients and to evaluate the standard deviations (Ï) between the experimental and calculated values. Moreover, on the basis of FTIR and UV-vis spectral data of PEG (1) + EDA (2) mixtures with various concentrations, the intermolecular interaction of PEG with EDA was discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 219, July 2016, Pages 149-157
Journal: Journal of Molecular Liquids - Volume 219, July 2016, Pages 149-157
نویسندگان
Liang Ma, Feng Sha, Xianshu Qiao, Tianxiang Zhao, Qiang Li, Jianbin Zhang,