ON THE APPLICATION OF AN ASSOCIATION MODEL TO BLENDS OF PHENOXY AND ETHER-CONTAINING POLYMERS

An association model is used to predict phase behaviour in mixtures of poly(hydroxy ether) of bisphenol A (phenoxy) (PH) with poly(alkylene oxide)s, poly(vinyl alkyl ether)s, aromatic polyethers and related cop olymers. Equilibrium constants and enthalpies corresponding to self-as sociation of PH and interassociation of PH with the second component w ere calculated from a Fourier transform infra-red spectroscopy study o f low molecular weight analogues in dilute solutions. Transferability of the association constants between model compounds and polymer blend s, as well as model predictions of blend miscibility and phase diagram s, are discussed.