Journal of the Serbian Chemical Society 2015 Volume 80, Issue 7, Pages: 933-946
https://doi.org/10.2298/JSC141009005V
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Experimental study of thermodynamic and transport properties of binary mixtures of poly(ethylene glycol) diacrylate and alcohols at different temperatures
Vuksanović Jelena M. (Faculty of Technology and Metallurgy, Belgrade)
Radović Ivona R. (Faculty of Technology and Metallurgy, Belgrade)
Šerbanović Slobodan P. (Faculty of Technology and Metallurgy, Belgrade)
Kijevčanin Mirjana Lj. (Faculty of Technology and Metallurgy, Belgrade)
Experimental density r, refractive index nD and viscosity h data of three
binary systems of poly(ethylene glycol) diacrylate (PEGDA) + ethanol, +
1-propanol, and + 1-butanol were measured at eight temperatures from (288.15
to 323.15) K, with temperature step of 5 K, and at atmospheric pressure. The
experimental data were correlated as a function of PEGDA mole fraction and
temperature. Densities and refractive indices of the investigated mixtures
could be fitted well with exponential function vs. composition, including
temperature dependence of parameters, while in the case of viscosities
polynomial function fits well over a mixture’s composition. In the case of
temperature correlation, all three properties (ρ, lnη and nD) exhibit linear
trend. The viscosity modeling was performed using four models: UNIFAC-VISCO,
ASOG-VISCO, Mc-Allister and Teja-Rice. For application of UNIFAC-VISCO model
interaction parameters of following groups were determined: CH2=CH/CH3,
CH2=CH/CH2, CH2=CH/OH, CH2=CH/CH2O and CH2=CH/COO. Also, in the same way
binary interaction parameters used in ASOG-VISCO of the following groups were
determined: CH2=CH/CH2, CH2=CH/OH, CH2=CH/CH2O and CH2=CH/COO.
Keywords: density, viscosity, refractive index, new UNIFAC-VISCO parameters, new ASOG-VISCO parameters
Projekat
Ministarstva nauke Republike Srbije, br. 172063