Directional freezing of liquid crystalline systems: from silver nanowire/PVA aqueous dispersions to highly ordered and electrically conductive macroporous scaffolds

Highly ordered hybrid metallic-polymeric assemblies were prepared by simultaneously combining two organization-directing tools: the liquid crystalline behavior of high aspect ratio silver nanowires (Ag-NWs) dispersed in poly(vinyl alcohol) (PVA) aqueous solutions and a cryogenic technique based on the directional freezing of the liquid crystal-like systems. This combination allowed us to render highly oriented Ag-NWs inside macroporous PVA scaffolds. As a consequence of the compact self-assembly of NWs into the structured composites, electrically conductive metallic-polymeric hybrid materials were obtained.

Palabras clave: DIRECTIONAL FREEZING , INORGANIC LIQUID CRYSTALS , NANOSTRUCTURED MATERIALS , ELECTRICAL CONDUCTIVITY , DIRECTIONAL FREEZING

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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/11336/268984

URL: https://pubs.rsc.org/en/content/articlelanding/2012/jm/c2jm16329b

DOI: http://dx.doi.org/10.1039/c2jm16329b

Colecciones

Articulos(INQUIMAE)
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA

Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)

Citación

Romeo, Hernan Esteban; Hoppe, Cristina Elena; López Quintela, Arturo; Williams, Roberto Juan Jose; Minaberry, Yanina Susana; et al.; Directional freezing of liquid crystalline systems: from silver nanowire/PVA aqueous dispersions to highly ordered and electrically conductive macroporous scaffolds; Royal Society of Chemistry; Journal Of Materials Chemistry; 22; 18; 2-2012; 1-7

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