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Effect of doped and undoped POMA on the morphology and miscibility of blends with Poly(vinylidene fluoride) (PVDF)

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Author(s): Rocha I.S. | Malmonge L.F. | Mattoso L.H.C. | Gregorio Jr. R.

Journal: Materials Research
ISSN 1516-1439

Volume: 2;
Issue: 2;
Start page: 63;
Date: 1999;
Original page

Keywords: POMA | PVDF | conducting polymers

ABSTRACT
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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