Data/hora: 24/09/2024 05:45:25

Biblioteca(s): 	Embrapa Instrumentação.	
Data corrente: 	29/03/2006	
Data da última atualização: 	29/03/2006	
Autoria: 	ALBUQUERQUE, J. E. de; MATTOSO, L. H. C.; FARIA, R. M.; MASTER, J.; MACDIARMID, A. G.	
Título: 	A simple method to estimate the oxidation state of polyanilines.	
Ano de publicação: 	1998	
Fonte/Imprenta: 	In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS=CONFERENCE INTERNATIONALE SUR LA SCIENCE ET LA TECHNOLOGIE DES METAUX SYNTHETIQUES, 1998, Montpellier. Book of abstracts... Montpellier: [s.l.], 1998. p.89, ref. TUC44.	
Idioma: 	Inglês	
Conteúdo: 	The electrical properties of polyanilines are highly dependent on the polymer oxidation state. In order to obtain a simple method to determine the polymer oxidation state a systematic study was carried out to investigate the interconversion between the oxidation state by ultraviolet-visible spectroscopy. The emeraldine base oxidation state is obtained where the exciton peak is a maximum for each derivative. The variation of oxidation state as a function of wavelength and absorption in the UV-Vis analysis is discussed.	
Palavras-Chave: 	Espectroscopia; Polianilina; Polímero; Ultra-violeta; UV-Vis.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Instrumentação (CNPDIA)	
Exemplares: 	CNPDIA - (9680-1) - UPC - SP - -- - PROCI-98.00001 -  - 1998.00001 - DIS