Novel side-chain-type sulfonated hydroxynaphthalene-based Poly(aryl ether ketone) with H-bonded for proton exchange membranes

Jing Zhu, Ke Shao, Gang Zhang, Chengji Zhao, Yang Zhang, Hongtao Li, Miaomiao Han, Haidan Lin, Dan Xu, Hubei Yu, Hui Na

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A series of novel side-chain-type sulfonated hydroxynaphthalene poly(aryl ether ketone)s (SHNPAEKs) containing hydroxyl groups was synthesized by post grafted method and the sulfonated degree (Ds) of the polymers could be well controlled. The resulting polymers were characterized by 1H NMR, FT-IR and thermogravimetric analysis (TGA). Meanwhile, the membrane properties for fuel cell applications such as water uptake, proton conductivity and methanol transport have been studied. The influence of pendent structure and inter-/intramolecular H-bonded to the properties of SHNPAEKs has been investigated. The proton conductivities of SHNPAEK membranes showed a range of 0.020-0.197 S/cm and the highest conductivity of 0.197 S/cm was obtained for SHNPAEK-90 (IEC = 2.08 meq./g) at 80 °C. The methanol permeability of SHNPAEK membranes was in the range from 2.65 × 10-7 to 11.9 × 10-7 cm2/s, which was much lower than that of Nafion 117.

Original languageEnglish (US)
Pages (from-to)3047-3053
Number of pages7
JournalPolymer
Volume51
Issue number14
DOIs
StatePublished - Jun 2010

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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