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- Title
Synthesis, characterization and performance of new 1,4‐diazabicyclo[2.2.2]octane derivatives in anion exchange membranes.
- Authors
Coppola, Roxana Elisabeth; D'Accorso, Norma Beatriz; Abuin, Graciela Carmen
- Abstract
Anion exchange membranes have aroused much interest for use in electrolyzers and alkaline fuel cells. In this work, two double‐charged anion exchange membranes based on poly(2,5‐benzimidazole) and poly(vinylbenzyl chloride) prepared by the casting method are reported. The effect of two different quaternizing agents based on 1,4‐diazabicyclo[2.2.2]octane (DABCO) was evaluated. These membranes were characterized by means of Fourier transform infrared spectroscopy, SEM, TGA, water contact angle, swelling ratio, KOH and water uptake, ionic exchange capacity and ionic conductivity. The results showed that the length of the alkyl chain has a strong effect on the membrane properties. A good performance in a zero‐gap water alkaline electrolyzer was obtained for the membrane based on the butyl derivate of DABCO (BDABCO). © 2023 Society of Industrial Chemistry.
- Subjects
ION-permeable membranes; ALKALINE fuel cells; FOURIER transform infrared spectroscopy; INDUSTRIAL chemistry; ION exchange resins; CONTACT angle; ALKYL compounds
- Publication
Polymer International, 2024, Vol 73, Issue 1, p30
- ISSN
0959-8103
- Publication type
Article
- DOI
10.1002/pi.6567