Artículo

pH Effect on epoxy-anhydride water aging

Capiel, GuillerminaIcon ; Uicich, Julieta FabienneIcon ; Arrosio, FlorenciaIcon ; Fasce, Diana PatriciaIcon ; Moran, Juan IgnacioIcon ; Montemartini, Pablo EzequielIcon
Fecha de publicación: 11/2021
Editorial: Elsevier
Revista: Polymer Degradation And Stability
ISSN: 0141-3910
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

Hydrothermal aging of an epoxy-anhydride network was investigated to elucidate the degradation effects of the external medium pH. For that reason, gravimetric analysis, Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and modulated differential scanning calorimetry (MDSC) were carried out. For each studied pH, degraded materials showed two values of glass transition temperature suggesting a homogeneous process. Both FTIR and GPC results exhibited signals related to the presence of hydrolyzed network fragments at long times for pH 4 and 7 and at very short times for pH 13. Indicating that at pH 13 both bulk and surface degradation coexist.
Palabras clave: Vida en Servicio , Materiales Compuestos , Degradación
 
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/232704
URL: https://www.sciencedirect.com/science/article/pii/S0141391021002640?via%3Dihub
DOI: http://dx.doi.org/10.1016/j.polymdegradstab.2021.109747
Colecciones
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Capiel, Guillermina; Uicich, Julieta Fabienne; Arrosio, Florencia; Fasce, Diana Patricia; Moran, Juan Ignacio; et al.; pH Effect on epoxy-anhydride water aging; Elsevier; Polymer Degradation And Stability; 193; 11-2021; 109747
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