MISCIBILITY AND INTERACTIONS IN A MIXTURE OF POLY(ETHYLENE OXIDE) ANDAN AROMATIC POLY(ETHER AMIDE)

Results concerning a mixture of an experimental aromatic poly(ether am ide) and poly(ethylene oxide) are reported. The presence of ether grou ps in both polymers, and the possibility of a great number of intermol ecular hydrogen bonds, give rise to polymer-polymer interactions that result in partial miscibility, as it has been demonstrated by FT-i.r., differential scanning calorimetry and optical microscopy. These resul ts are qualitatively consistent with theoretical phase diagrams calcul ated from an association model which emphasizes the role of hydrogen b ond interactions in this type of blend. (C) 1997 Published by Elsevier Science Ltd. All rights reserved.