2026-06-01T16:40:20Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/271272026-02-03T11:14:48Zcom_10630_2254col_10630_37953
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Zamudio-García, Javier
author
Martínez de Yuso, María V.
author
Cuevas, Ana Laura
author
Marrero-López, David
author
Benavente-Herrera, Juana
2023-06-29T12:59:42Z
2023-06-29T12:59:42Z
2023-05-30
Zamudio-García J, Martínez de Yuso MV, Cuevas AL, Marrero-López D, Benavente J. Modification of the Physical Properties of a Nafion Film Due to Inclusion of n-Dodecyltriethylammonium Cation: Time Effect. Polymers. 2023; 15(11):2527. https://doi.org/10.3390/polym15112527
https://hdl.handle.net/10630/27127
10.3390/polym15112527
This study investigates the effects of modifying commercial Nafion-212 thin films with dodecyltriethylammonium cation (DTA+) on their electrical resistance, elastic modulus, light transmission/reflection and photoluminescence properties. The films were modified through a proton/cation exchange process for immersion periods ranging from 1 to 40 h. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were employed to analyze the crystal structure and surface composition of the modified films. The electrical resistance and the different resistive contributions were determined via impedance spectroscopy. Changes in the elastic modulus were evaluated using stress–strain curves. Additionally, optical characterization tests, including light/reflection (250–2000 nm) and photoluminescence spectra, were also performed on both unmodified and DTA+-modified Nafion films. The results reveal significant changes in the electrical, mechanical and optical properties of the films, depending on the exchange process time. In particular, the inclusion of the DTA+ into the Nafion structure improved the elastic behavior of the films by significantly decreasing the Young modulus. Furthermore, the photoluminescence of the Nafion films was also enhanced. These findings can be used to optimize the exchange process time to achieve specific desired properties.
eng
Atribución 4.0 Internacional
Propiedades opticas
Elasticidad
Modification of the Physical Properties of a Nafion Film Due to Inclusion of n-Dodecyltriethylammonium Cation: Time Effect.
journal article
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URL
https://riuma.uma.es/bitstreams/810d97c0-9da9-4571-b26b-3616150e1437/download
File
MD5
94a04cc11accf10445b0c53e59bfd56d
3096437
application/pdf
polymers-15-02527.pdf