Producción CyT
Congreso
Autoría
Carmen C. Riccardi
;
Elena Serrano
;
SCHROEDER, WALTER FABIAN
Fecha
2012
Editorial y Lugar de Edición
VirginiaTech, Blacksburg, VA (USA)
Resumen
Información suministrada por el agente en
SIGEVA
The lattice theory of Sanchez-Lacombe has been extensively applied to homogeneous blends using pressure-volume-temperature, PVT, data to characterize the interaction between the components. In the framework of this theory, scaling parameters of pure components are obtained by fitting PVT data, while the model parameters are calculated by using mixing rules as a function of lattice-binary interaction parameters. When an equation of state is used to predict the mixing behavior of two substances t...
The lattice theory of Sanchez-Lacombe has been extensively applied to homogeneous blends using pressure-volume-temperature, PVT, data to characterize the interaction between the components. In the framework of this theory, scaling parameters of pure components are obtained by fitting PVT data, while the model parameters are calculated by using mixing rules as a function of lattice-binary interaction parameters. When an equation of state is used to predict the mixing behavior of two substances that give place to a homogeneous solution, it is assumed that both mixture and components obey the same equation of state, that the hard-core volumes are additive and that there are parameters that can take into account interactions between the molecules. To our knowledge, the modeling of PVT data of immiscible mixtures has not been done. In addition to the requirements for miscible blends, the lattice-fluid parameters should be the same for both phases in immiscible blends, which means that they must not depend on the composition. In the present work we applied the Sanchez-Lacombe equation of state to model the PVT behavior of phase separated blends of poly(methyl methacrylate) (PMMA) and poly(ε-caprolactone) (PCL).
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Palabras Clave
LATTICE-BINARY PARAMETERIMMISCIBLE BLENDBLOCK COPOLYMERPVT