INVESTIGADORES
D'ACCORSO Norma Beatriz
artículos
Título:
Synthesis, characterization and performance of new 1,4-diazabicyclo[2.2.2]octane derivatives in anion exchange membranes
Autor/es:
COPPOLA, ROXANA ELISABETH; D'ACCORSO, NORMA BEATRIZ; ABUIN, GRACIELA CARMEN
Revista:
POLYMER INTERNATIONAL
Editorial:
JOHN WILEY & SONS LTD
Referencias:
Año: 2024
ISSN:
0959-8103
Resumen:
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.
