Poly(arylene ether) block copolymer membranes: Synthesis, properties and durability

Byungchan Bae, Kenji Miyatake, Masahiro Watanabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Poly(arylene ether sulfone)s (SPEs) block copolymers containing fluorenyl groups were synthesized for fuel cell applications. Post-sulfonation of the polymers by chlorosulfonic acid gave sulfonated block copolymers having highly sulfonated hydrophilic block. SPE block copolymer membrane with the ion exchange capacity (IEC) = 2.20 meq/g showed proton conductivity, 0.14 S/cm (80% RH) and 0.02 S/cm (40% RH) at 80°C, which is higher or comparable to that of perfluorinated ionomer (Nafion®) membrane. STEM observation of Ag-stained membranes revealed that phase separation of the SPE block copolymers was more developed than that of the SPE random copolymers. Long-term hydrolytic stability of these membranes has been confirmed.

Original languageEnglish
Title of host publicationECS Transactions - Proton Exchange Membrane Fuel Cells 9
Pages415-422
Number of pages8
Edition1 PART 1
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society - Vienna, Austria
Duration: 2009 Oct 42009 Oct 9

Publication series

NameECS Transactions
Number1 PART 1
Volume25
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society
CountryAustria
CityVienna
Period09/10/409/10/9

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Poly(arylene ether) block copolymer membranes: Synthesis, properties and durability'. Together they form a unique fingerprint.

  • Cite this

    Bae, B., Miyatake, K., & Watanabe, M. (2009). Poly(arylene ether) block copolymer membranes: Synthesis, properties and durability. In ECS Transactions - Proton Exchange Membrane Fuel Cells 9 (1 PART 1 ed., pp. 415-422). (ECS Transactions; Vol. 25, No. 1 PART 1). https://doi.org/10.1149/1.3210591