کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4764040 | 1423372 | 2017 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Excess properties and spectroscopic studies for binary system polyethylene glycol 600Â +Â dimethyl sulfoxide 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
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Excess properties and spectroscopic studies for binary system polyethylene glycol 600Â +Â dimethyl sulfoxide at TÂ =Â (298.15, 303.15, 308.15, 313.15, and 318.15) K Excess properties and spectroscopic studies for binary system polyethylene glycol 600Â +Â dimethyl sulfoxide at TÂ =Â (298.15, 303.15, 308.15, 313.15, and 318.15) K](/preview/png/4764040.png)
چکیده انگلیسی
The work presents density (Ï) and viscosity (η) data of binary system polyethylene glycol 600 (PEG) + dimethyl sulfoxide (DMSO) over the entire concentration range at T = (298.15, 303.15, 308.15, 313.15 and 318.15) K and atmospheric pressure. On the basis of density and viscosity values, the excess properties of PEG (1) + DMSO (2) mixtures, including excess molar volume (VmE), viscosity deviation (â η), excess free energies of activation (â G*E), and isobaric thermal expansion coefficient (αp), were calculated. At the same time, in order to conjecture the density viscosity under different conditions, the density and viscosity data were fitted with the corresponding formula. The calculated results of VmE, â η, and â G*E were fitted with the Redlich-Kister equation to derive coefficients and estimate the standard deviations (Ï) between the experimental and calculated values. Moreover, the intermolecular interaction of PEG with DMSO was discussed on the basis of FTIR and UV-Vis spectral results of PEG (1) + DMSO (2) mixtures. The results indicated that there were the hydrogen bonding and interactions of hydroxyl hydrogen atoms in PEG with oxygen atoms in DMSO.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Chemical Engineering - Volume 25, Issue 9, September 2017, Pages 1249-1255
Journal: Chinese Journal of Chemical Engineering - Volume 25, Issue 9, September 2017, Pages 1249-1255
نویسندگان
Liang Ma, Feng Sha, Xianshu Qiao, Qiang Li, Jianbin Zhang,