Sodium Ion Conduction of Perfluorosulfonate Ionomer/ Poly(oxyethylene) Composite Films

Shinji Takeoka, Kohji Horiuchi, Shin Yamagata, Eishun Tsuchida

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A composite film of Na+-form Nafion and diendoacetylated poly(osyethylene) (Mw = 400) (POE400e) was cast from a dimethylformamide solution at 120 °C. The ionic conductivity of this thin film was measured. The resulting film showed good flexibility, transparency, and no leakage of POE400E up to the POE incorporation of 55 wt %. At this composition, sodium ionic conductivity was 1.0 ✕ 10‒6 S cm‒1, which is relatively high as a single-ion conductor because of the high dissociation of the sodium perfluorosulfonate groups. The ionic conductivity increases with POE incorporation. This can be explained from a decrease in the glass transition temperature (Tg) of POE regions and the connection of ion clusters swollen by POE.

Original languageEnglish
Pages (from-to)2003-2006
Number of pages4
JournalMacromolecules
Volume24
Issue number8
DOIs
Publication statusPublished - 1991 Apr 1

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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