Get access

Synthesis and properties of sulfonated aromatic fluoro-polymers

Authors

  • Kiyoshi Endo,

    Corresponding author
    1. Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
    • Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
    Search for more papers by this author
  • Takashi Yamade

    1. Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
    Search for more papers by this author

Abstract

Polycondensation of perfluorobiphenyl with α,α-bis(4-hydroxyphenyl)ethylbenzene and/or 9,9-bis(4-hydroxyphenyl)fluorene was investigated. The polycondensation of perfluorobiphenyl with α,α-bis(4-hydroxyphenyl)ethylbenzene and/or 9,9-bis(4-hydroxyphenyl)fluorene proceeded at low-temperature to a give high-molecular weight and thermal stable polymers. The 19F-NMR spectra of the polymers indicate that the polymers consists of predominantly 1,4-phenylene structure with respect to the perfluoro-aromatic compound. The sulfonation of the polymers obtained from the polycondensation occurred at the phenyl groups and fluorenyl side chain. A tough and smooth film was prepared by a casting method from DMF solution of the sulfonated polymer. The films showed hydrolytic and oxidative stabilities, and a high-proton conductivity. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

Ancillary