Conductive and Stable Crosslinked Anion Exchange Membranes Based on Poly(arylene ether sulfone)Conductive and Stable Crosslinked Anion Exchange Membranes Based on Poly(arylene ether sulfone)
- Other Titles
- Conductive and Stable Crosslinked Anion Exchange Membranes Based on Poly(arylene ether sulfone)
- Authors
- 장요셉; 안민균; 이수빈; 민청민; 강범구; 이재석
- Issue Date
- Feb-2021
- Publisher
- 한국고분자학회
- Keywords
- AEMFCs; crosslinking; triazolium; quaternary ammonium; alkaline stability.
- Citation
- Macromolecular Research, v.29, no.2, pp.157 - 163
- Journal Title
- Macromolecular Research
- Volume
- 29
- Number
- 2
- Start Page
- 157
- End Page
- 163
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/40697
- DOI
- 10.1007/s13233-021-9023-6
- ISSN
- 1598-5032
- Abstract
- Highly conductive and stable anion exchange membranes (AEMs) are important components of high-performance anion exchange membrane fuel cells (AEMFCs).
Here, we report the use of crosslinked poly(arylene ether sulfone) (PAES) AEMs containing quaternary ammonium (QA) and triazolium cations. The crosslinked PAEStriazole- hydroxide membrane (cPAES-TA-OH) had a higher ion exchange capacity (IEC) than that of the non-crosslinked membrane (PAES-TA-OH) owing to the presence of triazolium cations. The IEC values of cPAES-TA-OH and PAES-TA-OH were 1.75 and 1.31 meq/g, respectively. The IEC value affects the water uptake and swelling ratio of a membrane. The water uptake and swelling ratio of cPAES-TA-OH were higher than those of PAES-TA-OH at 30 °C and 80 °C. In addition, hydroxide conductivity and membrane stability were enhanced by crosslinking; the hydroxide conductivity of cPAES-TA-OH was 92.1 mS/cm at 80 °C under 95% RH (in contrast to 86.2 mS/cm for PAES-TA-OH), and its conductivity retention was 67% after treating with 1M NaOH at 80 °C for 24 h (in contrast to 51% for PAES-TA-OH).
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