Phase equilibria, in polymer systems

Koningsveld, R., "Phase Equilibria in Polymer Systems," Brit. Polym. J., 7, 435 (1975). 

Phase equilibria in polymer systems are excellently treated in P. J. Flory s book. ... 

The Flory-Huggins theory has been used extensively to describe phase equilibria in polymer systems. It can, for example, qualitatively describe the lower phase boundary (UCST) in Figure 7.1, although it rarely gives a good quantitative fit of experimental data. Partial differentiation of Equation 7.13 with respect to iti (keeping in mind that and are functions of i) gives the chemical potential of the solvent. This is, of course, a key quantity in phase equilibrium that also makes x experimentally accessible. Further development is beyond the scope of this chapter, but the subject is well treated in standard works on polymer solutions [12-15]. 

PHASE EQUILIBRIA IN POLYMER SYSTEMS CONTAINING A LIQUID-CRYSTALLINE PHASE... 

In examining phase equilibria in polymer systems, until recently most of the attention has been focused on the transitions between amorphous and crystalline states alone and the transitions from one crystalline modification to another (polymorphic transitions). The detection and the subsequent study of the liquid-crystalline state of polymers showed that it is an independrat, tharoodynamically equilibrium state. In many phase transitions, it occupies an intermediate position between the amorphous and crystalline states, and the mutual transitions from these two states into the liquid-crystalline state and vice versa are phase transitions of the first kind. 

Phase Equilibria in Polymer Systems Containing a Liquid-Crystalline Phase... 

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