Aniline-1,4-benzoquinone as a model system for the characterization of products from aniline oligomerization in low acidic media
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
06/11/2013
06/11/2013
2012
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| Resumo |
Increase in the pH medium of aniline polymerization is used for giving products of different morphologies, which are often wrongly attributed to PANI chains. Infrared and Raman spectroscopic data, supported by quantum chemical calculations, show that aniline-1,4-benzoquinone (AnBzq) is a model system for the characterization of the products of aniline oligomerization in low acidic media. The Raman spectra excited at different laser lines reveal the bichromophoric nature of AnBzq, whose absorption bands at 550 nm and 440 nm can be attributed to pi-pi* transitions of the delocalized benzoquinone and amino-phenyl moieties, respectively. (C) 2012 Elsevier B.V. All rights reserved. Brazilian agency CNPq Brazilian agency CNPq Brazilian agency FAPESP Brazilian agency FAPESP |
| Identificador |
CHEMICAL PHYSICS LETTERS, AMSTERDAM, v. 551, n. 7, pp. 130-133, 37196, 2012 0009-2614 http://www.producao.usp.br/handle/BDPI/42284 10.1016/j.cplett.2012.09.033 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE BV AMSTERDAM |
| Relação |
CHEMICAL PHYSICS LETTERS |
| Direitos |
closedAccess Copyright ELSEVIER SCIENCE BV |
| Palavras-Chave | #POLYANILINE NANOTUBES #OXIDATIVE POLYMERIZATION #AB-INITIO #DENSITY #SUPERCAPACITOR #COMPOSITES #NANOFIBERS #SENSORS #MEMORY #FILMS #CHEMISTRY, PHYSICAL #PHYSICS, ATOMIC, MOLECULAR & CHEMICAL |
| Tipo |
article original article publishedVersion |
