| 초록 |
In the phase behavior of binary polymer solutions, a upper critical solution temperature (UCST), a lower critical solution temperature (LCST), both of them, hour-glass shaped and closed miscibility loop phase behavior are encountered. Such phase behavior may be due to highly oriented interactions such as hydrogen bonding. The purpose of this study is to describe a closed miscibility loop and both UCST and LCST phase behavior of liquid-liquid equilibria for binary polymer solutions. To take into account highly oriented interactions (or specific interactions), we employed a secondary lattice concept as a perturbation term and the temperature dependence contribution in the energy parameter contributed by the oriented interactions.
|
