Miscibility studies of perfluorinated Nafion ionomer and poly(vinylidene fluoride) blends

Thein Kyu, Jen Chang Yang

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Miscibility studies of perfluorinated Nafion ionomer and poly(vinylidene fluoride) (PVDF) blends were undertaken by means of differential scanning calorimetry (DSC), dielectric relaxation, optical microscopy, and laser light scattering. The influence of solvent casting on the phase morphology of the blends has been examined. The spherulitic crystalline morphology of PVDF shows a strong dependence on the casting temperature and blend compositions. Solvent casting from dimethylformamide, dimethylacetamide, or 1-methyl-2-pyrrolidinone has resulted in the formation of mixed α- and γ-form crystals in a manner dependent on the casting temperature. The DSC technique is not sensitive enough for the determination of glass transition temperatures of the ionomer blends.

Original languageEnglish
Pages (from-to)176-182
Number of pages7
JournalMacromolecules
Volume23
Issue number1
Publication statusPublished - Jan 8 1990
Externally publishedYes

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Ionomers
Casting
Solubility
1-methyl-2-pyrrolidinone
Differential scanning calorimetry
Dimethylformamide
Dielectric relaxation
Light scattering
Optical microscopy
Crystalline materials
Temperature
Crystals
perfluorosulfonic acid
polyvinylidene fluoride
Lasers
Chemical analysis

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Miscibility studies of perfluorinated Nafion ionomer and poly(vinylidene fluoride) blends. / Kyu, Thein; Yang, Jen Chang.

In: Macromolecules, Vol. 23, No. 1, 08.01.1990, p. 176-182.

Research output: Contribution to journalArticle

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