Lv. Mokrushina et Im. Balashova, GROUP-CONTRIBUTION ENTROPIC EQUATION FOR SIMULATING THE PROPERTIES OFPOLYMER-SOLUTIONS, Theoretical foundations of chemical engineering, 31(5), 1997, pp. 439-443
A group-contribution entropic equation is used to predict the activiti
es of low-molecular-weight components in multicomponent polymer system
s with chemical conversions. The change in free volume on mixing is in
cluded by introducing the mole fraction of the free volume. The residu
al member is taken into account in terms of the UNIFAC equation. Fourt
een binary and multicomponent systems containing the products of synth
esis of styrene and acrylonitrile-butadiene-styrene polymers are studi
ed. The activities calculated from the equation of interest are compar
ed with experimental data and the values calculated from the UNIFAC-FV
model.