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Artigo Científico | Polímeros Condutores | Inglês | 30/04/1999
Autores: I.S. Rocha, L.F. Malmonge, L.H.C. Mattoso, R. Gregorio Jr.
Palavras-chave: conducting polymers, poma, pvdf
Resumo: The effect of the addition of small amounts of doped and undoped poly(o-methoxyaniline) (POMA) on the morphology of melt crystallized PVDF was investigated by means of polarized light optical microscopy. Undoped POMA (POMA-EB) inhibits nucleation and growth of non ringed spherulites, partially formed by the polar gphase, whereas POMA doped with toluene sulfonic acid (POMA-TSA) favors this process. Moreover, the doping of POMA increases the miscibility between the components of the PVDF/POMA blends, resulting in more homogeneous films. A possible cause of this miscibility increase and for the favoring of the polar gphase, is the higher polarity of the POMA chains as a result of the doping.
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