INVESTIGADORES
D'ACCORSO Norma Beatriz
artículos
Título:
Synthesis, characterization and performance of new DABCO derivatives in anion exchange membranes
Autor/es:
ROXANA COPPOLA; NORMA D'ACCORSO; GRACIELA ALBUIN
Revista:
POLYMER INTERNATIONAL
Editorial:
JOHN WILEY & SONS LTD
Referencias:
Lugar: Londres; Año: 2023 vol. 202 p. 30 - 37
ISSN:
0959-8103
Resumen:
Anion exchange membranes have aroused much interest for used in electrolyzers and alkaline fuel cells. In this work, two double charged anion exchange membranes based on poly(2,5-benzimidazole) (ABPBI) and poly(vinylbenzyl chloride) (PVBC) prepared by the casting method are reported. The effect of two different quaternizing agents based in 1,4-diazabicyclo[2.2.2]octane (DABCO) was evaluated. These membranes were characterized by means of Fourier transform infrared spectroscopy, scanning electron microscopy, thermalgravimetric analysis, water contact angle, swelling ratio, KOH and water uptake, ionic exchange capacity and ionic conductivity. Results showed that the length of the alkyl chain has a strong effect in the membrane properties. A good performance in a zero-gap water alkaline electrolyzer was obtained for the membrane based in the butyl derivative of DABCO (BDABCO).
