Artículo
Synthesis and characterization of a nanostructured photoluminescent silsesquioxane containing urea and dodecyl groups that can be patterned on carbon films
Fecha de publicación:
17/05/2011
Editorial:
Elsevier
Revista:
European Polymer Journal
ISSN:
0014-3057
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A silsesquioxane was synthesized by the hydrolysis and polycondensation of (EtO)3-Si(CH2)3NHCONH(CH2)11CH3 in tetrahydrofuran (THF) employing formic acid as catalyst. The silsesquioxane self-assembled into nanorods due to the strong H-bonds among urea groups and the tail-to-tail associations of organic chains. The nanostructuration was characterized by a variety of experimental techniques (FTIR, 29Si NMR, XRD, TEM, HRTEM, and SAED). A colloidal solution of the silsesquioxane in methanol was deposited on a carbon film generating coffee ring structures with nanoparticles located at the boundary of rings. The significance of these results is related to the intrinsic photoluminescence of silsesquioxanes containing urea groups. The possibility of patterning these hybrid polymers on a surface can give place to materials exhibiting periodically modulated optical properties with potential applications in optoelectronics and light-emitting devices.
Palabras clave:
Coffee-Ring Structures
,
Nanorods
,
Patterning
,
Silsesquioxanes
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Colecciones
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Lin, Derong; Hu, Lijiang; You, Hong; Williams, Roberto Juan Jose; Synthesis and characterization of a nanostructured photoluminescent silsesquioxane containing urea and dodecyl groups that can be patterned on carbon films; Elsevier; European Polymer Journal; 47; 8; 17-5-2011; 1526-1533
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