کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5411405 | 1506572 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Excess properties and spectroscopic studies for the binary system 1,2-ethanediamine + polyethylene glycol 300 at T = (293.15, 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 were determined over the whole concentration range for the binary system of 1,2-ethanediamine (EDA) + polyethylene glycol 300 (PEG) at T = (293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K as a function of composition under atmospheric pressure. From the experimental density and viscosity data, the excess molar volume and viscosity deviation were calculated, and the results were fitted to a Redlich-Kister equation to obtain the coefficients and estimate the standard deviations between the experimental and calculated quantities. Based on the viscosity data, excess Gibbs free energy of activation of viscous flow (ÎG*E), enthalpy of activation for viscous flow (ÎH*), entropy of activation for the viscous flow (ÎS*), and Gibbs energies of activation for viscous flow (ÎG*) were also calculated. Based on FTIR and UV-vis spectral results, the intermolecular interaction of EDA with PEG was discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 198, October 2014, Pages 21-29
Journal: Journal of Molecular Liquids - Volume 198, October 2014, Pages 21-29
نویسندگان
Tianxiang Zhao, Jianbin Zhang, Lihua Li, Bo Guo, Linlin Gao, Xionghui Wei,