Isobaric, isothermal theoretical investigation and examination of different prediction equations on some physicochemical properties in PEG liquid polymer system
Moosavi, M.[Mehrdad], Omrani, A.[Abdollah], Rostami, A. A.[Abbas Ali], Motahari, A.[Ahmad]
Densities, viscosities and refractive indices of the {poly(ethylene glycol) 200 + ethanol} binary liquid system were determined at three temperatures of (298.15, 303.15, and 308.15) K. From the experimental results, the excess molar volume was obtained and correlated with the Prigogine Flory Patterson (PFP) and Extended Real Associated Solution (ERAS) models. Several isobaric and isothermal properties consisting of the isobaric thermal expansion coefficient, excess molar isobaric expansion, excess molar isobaric heat capacity, isothermal coefficient of excess molar enthalpy, activation energy of flow, electron polarizibility, and Gibbs energy of activation were calculated from the experimental measurements. Moreover, the viscosity and refractive index values were correlated and predicted with different semi-empirical equations. To assess the validity of these proposed equations, comparisons were made between the experimental and predicted values.
Compounds
#
Formula
Name
1
C2H6O
ethanol
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.