Effect of low contents of a polyaniline derivative on the crystallization and electrical properties of blends with PVDF

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Data

1999-06-15

Autores

Rocha, I. S.
Mattoso, L. H. C.
Malmonge, L. F. [UNESP]
Gregório Júnior, R.

Título da Revista

ISSN da Revista

Título de Volume

Editor

Wiley-Blackwell

Resumo

The effect of low levels of poly(o-methoxyaniline) (POMA) on the crystallization, morphology, and electrical characteristics of blends with poly(vinylidene fluoride) (PVDF) were studied by infrared spectroscopy, AC electrical measurements, and optical microscopy. Undoped POMA has a strong effect in increasing the alpha-phase and decreasing the beta-phase content of PVDF in blends crystallized from solution. For blends melt crystallized, doped POMA promotes much greater homogeneity than undoped POMA. Interestingly, doped POMA promotes the nucleation and growth of unringed PVDF spherulites, whereas undoped POMA hinders it. The doping state of the POMA was also extremely important in determining the electrical behavior of the blend. (C) 1999 John Wiley & Sons, Inc.

Descrição

Palavras-chave

poly (vinylidene fluoride), polyanilines, blends, crystallization, morphology

Como citar

Journal of Polymer Science Part B-polymer Physics. New York: John Wiley & Sons Inc., v. 37, n. 12, p. 1219-1224, 1999.