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Description:

Acrosslinked sulfonated polyphenylsulfone (CSPPSU) polymer and polyvinyl alcohol (PVA) were thermally crosslinked; then, a CSPPSU-vinylon membrane was synthesized using a formalization reaction. Its use as an electrolyte membrane for fuel cells was investigated. PVA was synthesized from polyvinyl acetate (PVAc), using a saponification reaction. The CSPPSU-vinylon membrane was synthesized by the addition of PVA (5 wt%, 10 wt%, 20 wt%), and its chemical, mechanical, conductivity, and fuel cell properties were studied. The conductivity of the CSPPSU-10vinylon membrane is higher than that of the CSPPSU membrane, and a conductivity of 66 mS/cm was obtained at 120 C and 90% RH (relative humidity). From a fuel cell evaluation at 80 C, the CSPPSU-10vinylon membrane has a higher current density than CSPPSU and Nafion212 membranes, in both high (100% RH) and low humidification (60% RH). By using a CSPPSU-vinylon membrane instead of a CSPPSU membrane, the conductivity and fuel cell performance improved.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: PPSU, SPPSU, PVA, CSPPSU-vinylon, PEMFCs

Date published: 2020-06-16

Publisher: MDPI AG

Journal:

• Polymers (ISSN: 20734360) vol. 12 issue. 6 p. 1354-1354

Funding:

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.3390/polym12061354

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Updated at: 2024-01-05 22:14:01 +0900

Published on MDR: 2023-03-29 10:29:49 +0900