Chinese Journal of Polymer Science

, Volume 33, Issue 9, pp 1225–1233 | Cite as

A facile method for preparation of cardo poly(aryl ether sulfone) bearing pendent sulfoalkyl groups as proton exchange membranes

  • Li-mei Wang
  • Qi-feng Zhang (张奇峰)Email author
  • Suo-bo Zhang


A series of cardo poly(aryl ether sulfone) copolymers bearing pendent sulfonic acid groups (SPES-X) have been prepared by a facile chemical graft method. The structure was confirmed by 1H-NMR spectra. The side-chain-type SPES-X membranes show significantly reduced swelling behavior and excellent mechanical properties as well as appropriate proton conductivity compared to the main-chain-type sulfonated polymers with similar ion exchange capacity (IEC) value. Moreover, they show methanol permeability in the range of 0.6 × 10−7−5.7 × 10−7 cm2/s which is lower than that of Nafion 117. All the results indicate that the SPES-X membranes are promising candidates for the direct methanol fuel cells.


Side-chain type Cardo poly(aryl ether sulfone) Proton exchange membrane 


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Copyright information

© Chinese Chemical Society, Institute of Chemistry, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Li-mei Wang
    • 1
  • Qi-feng Zhang (张奇峰)
    • 2
    Email author
  • Suo-bo Zhang
    • 2
  1. 1.College of Materials Science and EngineeringJilin Jianzhu UniversityChangchunChina
  2. 2.Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchunChina

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