A Model System for the Thermodynamic Analysis of Reaction-Induced Phase Separation: Solutions of Polystyrene in Bifunctional Epoxy/Amine Monomers

ILEANA A. ZUCCHI; M. J. GALANTE; JULIO BORRAJO; ROBERTO J. J. WILLIAMS,

MACROMOLECULAR CHEMISTRY AND PHYSICS

WILEY-V C H VERLAG GMBH

Lugar: Weinheim; Año: 2004 vol. 205 p. 676 - 683

1022-1352

Reaction-induced phase separation was analyzed in a model system consisting of an almost monodisperse polystyrene dissolved in a reactive solvent that undergoes a linear stepwise polymerization. The Flory-Huggins model could be used to fit cloud-point conversions using an interaction parameter depending on temperature, composition and conversion. Model limitations and ways to improve the thermodynamic description are discussed.