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Experimental results are presented for the liquid–liquid equilibrium of a ternary system (N-vinylpyrrolidone+sodium sulfate+water) and three quaternary systems composed of (N-vinylpyrrolidone+poly(vinylpyrrolidone)+sodium sulfate+water) at 25°C. The quaternary systems differ in the number averaged molecular mass of the poly(vinylpyrrolidones). That molecular mass was between about 4 000 and 140000...
The thermodynamic properties of maltodextrins in aqueous solutions were studied by the isopiestic method, laser-light scattering and calorimetry. Three different maltodextrin samples with molar masses between 1000 and 3000 were investigated. The second and third osmotic virial coefficients of oligomers were determined. It was found that an influence of the molar mass on the second and third osmotic...
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