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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
    Viscometric behaviour of polymer blends based on poly (vinylidene fluoride) (1994)
    Springer
    Colloid & polymer science 272 (1994), S. 497-503 
    Details
    ISSN: 1435-1536
    Keywords: Poly(vinylidene fluoride) ; intrinsic viscosity ; polymer blood compatibility ; polymer-solvent inteaction
    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 The viscosity behaviour of dilute dimethylformamide solutions of poly(vinylidene fluoride)-poly (methyl methacrylate) and poly(vinylidene fluoride)-polystyrene has been studied at 25°C. The polymer concentration ranges are such that neither phase separation nor microgel formation occurs, although we are very close to theta conditions. The intrinsic viscosity and viscosity interaction parameter of the ternary mixtures have been calculated. The estimation of the compatibility of the above polymer pairs has been studied based on: a) specific viscosities; b) viscosity interaction parameters, according to Krigbaum and Wall formalism, and c) viscosity interaction parameters of a system formed by a dilute probe polymer in the presence of a matrix polymer and a small molecule solvent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00653213
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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