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

F. G. Torres; Junior Arroyo; Ricardo Alvarez; Sol Angel Rodriguez; Omar P. Troncoso; Daniel Lopez

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

F. G. Torres
, Junior Arroyo
, Ricardo Alvarez
, Sol Angel Rodriguez
, Omar P. Troncoso
, Daniel Lopez

CSIC - Instituto de Ciencia y Tecnologia de Polimeros (ICTP)

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

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.

Original language	Spanish
Pages (from-to)	889-902
Number of pages	14
Journal	Polymer-Plastics Technology and Materials
Volume	58
State	Published - 24 May 2019

Cite this

@article{27b1f629582d4d7cb97113a61c34b82d,

title = "Molecular dynamics of carboxymethyl κ/ι-hybrid carrageenan films doped with NH4I",

abstract = "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.",

author = "Torres, \{F. G.\} and Junior Arroyo and Ricardo Alvarez and Rodriguez, \{Sol Angel\} and Troncoso, \{Omar P.\} and Daniel Lopez",

year = "2019",

month = may,

day = "24",

language = "Espa{\~n}ol",

volume = "58",

pages = "889--902",

journal = "Polymer-Plastics Technology and Materials",

issn = "2574-0881",

}

TY - JOUR

T1 - Molecular dynamics of carboxymethyl κ/ι-hybrid carrageenan films doped with NH4I

AU - Torres, F. G.

AU - Arroyo, Junior

AU - Alvarez, Ricardo

AU - Rodriguez, Sol Angel

AU - Troncoso, Omar P.

AU - Lopez, Daniel

PY - 2019/5/24

Y1 - 2019/5/24

N2 - 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.

AB - 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.

M3 - Artículo

SN - 2574-0881

VL - 58

SP - 889

EP - 902

JO - Polymer-Plastics Technology and Materials

JF - Polymer-Plastics Technology and Materials

ER -