Polymer Engineering Faculty Research

Title

Role of Crystal-Amorphous Interaction on Phase Equilibria of Crystal/Amorphous Polymer Blends

Document Type

Article

Publication Date

2006

Abstract

A self-consistent theory has been developed for determination of phase diagrams of a crystalline polymer solution. Although the original Flory diluent theory captures the liquidus line, the theory is incapable of accounting for the solidus line due to the inherent assumption of complete immiscibility of solvent in the solid crystal. The present theory considers all possible interactions involving amorphous-amorphous and crystal-amorphous interactions. The self-consistent solutions predict various phase diagrams involving liquid-liquid, pure solid, and liquid-solid coexistence regions bound by liquidus and solidus lines. In the limit of complete insolubility of solvent in neat solid crystal, the original Flory diluent theory is recovered.

Publication Title

Journal of Polymer Science Part B: Polymer Physics

Volume

110

First Page

12728

Last Page

12732