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Synthesis and characterization of novel (sulfonated) poly(arylene ether)s with pendent trifluoromethyl groups

Authors
Journal
Polymer
0032-3861
Publisher
Elsevier
Publication Date
Volume
50
Issue
9
Identifiers
DOI: 10.1016/j.polymer.2009.02.043
Keywords
  • Partially Fluorinated Poly(Arylene Ether)S
  • Proton-Exchange Membranes
  • Poly(Perfluoroalkylsulfonic)Acids

Abstract

Abstract This paper reports the synthesis of four different trifluoromethyl-substituted poly(arylene ether)s on the basis of 2,2-bis(4-hydroxyphenyl)hexafluoropropane (bisphenol AF) and various difluoro- or dinitrobiphenyl or terphenyl monomers in the course of a step-growth polycondensation. Besides a comparison between the polymerisability of the different monomer combinations, a main focus of this work lies on the NMR characterization of these poly(arylene ether)s. Poly(arylene ether)s with sufficiently high number average molecular weights were sulfonated by fuming sulfuric acid or chlorosulfonic acid and investigated in terms of membrane properties relevant for fuel cell applications.

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