A SURVEY OF POLYVINYLPHENOL BLEND MISCIBILITY

The effect of polymer structure on blend miscibility with polyvinylphe nol (PVPh) has been studied for at least one polymer from a variety of polymer classes with potential hydrogen-bond accepting groups: polyes ters (aliphatic and aromatic), polycarbonates, polyimides, polyamides, polysulfones, polyurethanes, polyethers, polysiloxanes, poly(amideimi des), and cellulose esters. Many of the polyesters, polyamides, and ce llulose esters showed evidence of interaction and miscibility with PVP h. In most of the other cases, there was no sign of miscibility. Gener ally good correlation exists between thermal behavior and infrared spe ctral data. Where there is significant interaction seen between the po lymers by FTIR, substantial miscibility is seen by DSC analysis. In so me cases, the phase behavior depended on the blend preparation scheme. (C) 1994 John Wiley and Sons, Inc.