Molecular dynamics of carboxymethyl κ/ι-hybrid carrageenan films doped with NH4I

Fernando G. Torres, Junior Arroyo, Ricardo Alvarez, Sol Rodriguez, Omar Troncoso, Daniel López

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

4 Citas (Scopus)

Resumen

The effect of carboxymethylation and NH4I incorporation on the molecular dynamics of carrageenan films was studied. Broadband Dielectric Spectroscopy (BDS) assessed the presence of α and β relaxation processes. The effect of NH4I content was analyzed using the Havriliak-Negami model and parameterizing the temperature dependence of the relaxation times according to the Vogel-Fulcher-Tammann-Hesse (VFTH) equation. The glass transition temperature was found to decrease with the increase of NH4I content. These results suggest that carboxymethylation and the salt doping treatment increase the molecular mobility of NH4+ ions, making the films suitable for the development of solid electrolytes for energy storage applications.

Idioma originalInglés
Páginas (desde-hasta)889-902
Número de páginas14
PublicaciónPolymer-Plastics Technology and Materials
Volumen58
N.º8
DOI
EstadoPublicada - 24 may. 2019

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