Phase behavior quantitative representation

QUANTITATIVE REPRESENTATION OF PHASE BEHAVIOR OF AN ALKALINE-SURFACTANT SYSTEM... 

Quantitative Representation of Phase Behavior of an Alkaline-Surfactant System 475... 

The Differential Equation of State 1 provides not only a good qualitative description of isothermal behavior at subcritical temperatures T < 1, but also yields accurate quantitative representations of experimentally measured data. It describes not only the stable vapor and liquid branches, but also the two-phase transition region, additionally yielding information on the nature of metastable and absolutely unstable phases. A complete and simple description of the vapor-liquid-phase transition and the critical point also is provided by the differential equation of state. 

Qualitatively correct and occasionally also quantitatively satisfactory representation of LLE for binary and ternary polymer-solvent systems is achieved, especially for the UCST-type phase behavior. A single investigation for SLLE also shows good results. 

Figure 9.18 Schematic representation of the structure of the crystalline phase in ultra-high-modulus polyethylene (constructed for p = 0.4). (Reproduced from Gibson, A.C., Davies, C.R. and Ward, I.M. (1978) Dynamic mechanical-behavior and longitudinal crystal thickness measurements on ultrahigh modulus linear polyethylene - quantitative model for elastic-modulus. Polymer, 19, 683. Copyright (1978) I PC Business Press Ltd.)...

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