Escudo de la República de Colombia
Sistema Nacional de Biliotecas - Repositorio Institucional Universidad Nacional de Colombia Biblioteca Digital - Repositorio Institucional UN Sistema Nacional de Bibliotecas UN

Preparation of zinc oxide and poly-ethylene oxide composite membranes and their phase relationship

JURADO, JESÚS FABIAN and VARGAS HERNÁNDEZ, CARLOS and ANTONIO VARGAS, RUBÉN (2012) Preparation of zinc oxide and poly-ethylene oxide composite membranes and their phase relationship. Dyna; Vol. 79, núm. 174 (2012); 79-85 DYNA; Vol. 79, núm. 174 (2012); 79-85 2346-2183 0012-7353 .

Texto completo

[img]
Vista previa
PDF
2MB
[img] HTML
28kB

URL oficial: http://revistas.unal.edu.co/index.php/dyna/article...

Resumen

Zinc oxide and organic polymer (poly-ethylene oxide) based nanocomposite membranes were prepared and their phase relationship investigated. The composites were characterized by XRD, Raman scattering, DSC, and impedance spectroscopy analysis. It was found that embedding inorganic nanoparticles of ZnO into the polymer matrix of PEO allowed for some crystallinity formation, and cross-linking of the polymer composites during annealing or synthesis. The XRD and Raman scattering results show more defined peaks assigned to each phase of the composite as the ZnO content increases from 0 to 30% weight ratio, thus indicating that ceramic filler remain in the semi-crystalline polymer matrix as a separate crystalline phase. The dc-electrical conductivity increases by two or three orders of magnitude from blank (organic phase only) (~10-6 Scm-1 ) to the 30 % wt. ZnO composite membrane (~10-4 Scm-1 ). Electrical conduction changed as a function of temperature with an Arrhenius-type behavior.

Tipo de documento:Artículo - Article
Información adicional:Derechos de autor reservados
Palabras clave:PEO(poly-ethylene oxide), Composite Materials, Raman scattering, Polyelectrolytes, Dielectrics properties
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:26953
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :27 Junio 2014 18:04
Ultima modificación:27 Noviembre 2017 22:18
Ultima modificación:27 Noviembre 2017 22:18
Exportar:Clic aquí
Estadísticas:Clic aquí
Compartir:

Solamente administradores del repositorio: página de control del ítem

Vicerrectoría de Investigación: Número uno en investigación
Indexado por:
Indexado por Scholar Google WorldCat DRIVER Registry of Open Access Repositories OpenDOAR Metabiblioteca BDCOL OAIster Red de repositorios latinoamericanos DSpace BASE Open archives La referencia Colombiae Open Access Theses and Dissertations Tesis latinoamericanas CLACSO
Este sitio web se ve mejor en Firefox