MORPHOLOGY VARIATION AS A FUNCTION OF COMPOSITION FOR BLENDS OF PVDF AND A POLYANILINE DERIVATIVE

Blends of poly(vinylidene fluoride), PVDF, and poly(o-methoxyaniline), POMA doped with toluene sulfonic acid, TSA, were prepared by casting at various compositions and studied by scanning electron microscopy, X -ray diffraction and differential scanning calorimetry. The blend comp osition has a great influence on the morphology obtained. As the conce ntration of POMA-TSA is increased in the blend an interconnecting fibr illar-like morphology is formed and the spherulites characteristic of pure PVDF are destroyed. The variation of blend morphology is further discussed based on X-ray diffraction and differential scanning calorim etry analysis. (C) 1998 Elsevier Science Ltd. All rights reserved.