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  • 1
    Electronic Resource
    Electronic Resource
    Correlation between transport and equilibrium properties through the ternary interaction parameter for cosolvent and cononsolvent polymeric systems (1992)
    Springer
    Colloid & polymer science 270 (1992), S. 197-206 
    Details
    ISSN: 1435-1536
    Keywords: Ternarypolymericsystems ; secondvirialcoefficient ; intrinsicviscosity ; excessGibbsenergy ; cosolvent ; cononsolvent ; ternaryinteractionparameter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A study of the ternary polymer systems dimethyl formamide-ethyl acetate-polystyrene, chloroform-1,4 dioxane-polystyrene and tetrahydrofuran-chloroform-polystyrene was carried out by viscosity and light scattering at 298 K. A good correlation has been found between the excess intrinsic viscosity, unperturbed polymer dimensions, second virial coefficient and the excess Gibbs free energy by using a ternary interaction parameter, dependent on molecular weight. This modification enables the conversion between transport and equilibrium properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00655470
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Prediction of maxima and minima in the curve of total sorption parameter in ternary polymer systems. Influence of ternary interaction parameter (1993)
    Springer
    Colloid & polymer science 271 (1993), S. 372-379 
    Details
    ISSN: 1435-1536
    Keywords: Ternary polymer systems ; extrema thermodynamic behavior ; total sorption parameter ; Flory-Huggins theory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Flory-Huggins theory modified by Pouchly has been applied to predict maxima and minima in the curve of total sorption in ternary polymer systems formed by a polymer and two liquids. In this work, different diagrams based on experimental magnitudes easily obtained such as the difference in affinities of liquids, solvents and non solvents, and the solvent molar volume ratio. Total sorption parameter has been considered to be the decisive magnitude to define extrema conditions in both cosolvent and cononsolvent ternary polymer systems. The theoretical prediction is not altered by the inclusion of ternary interactions. Different examples of ternary systems dealing with vinyl polymers and polydimethyl siloxane have been used to test the above formalism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00657418
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    Paper (German National Licenses)
    Fulltext
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