Characterization of poly (N-alkylanilines) by Raman spectroscopy

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Blomquist M, Lindfors T, Ivaska A
Förläggare: ELSEVIER SCIENCE SA
Publiceringsår: 2007
Tidskrift: Synthetic Metals
Tidskriftsakronym: SYNTHETIC MET
Volym: 157
Nummer: 22-23
Artikelns första sida, sidnummer: 974
Artikelns sista sida, sidnummer: 983
Antal sidor: 10
ISSN: 0379-6779


Abstrakt

Thin films of poly(N-alkylaniline) were synthesized in acidic aqueous solution and in mixtures of aqueous and organic solvents. The polymer films (alkyl = methyl, ethyl, propyl and butyl) were characterized by Raman spectroscopy with the excitation wavelengths of 514.5, 632.8 and 780 nm. The main Raman bands have been characterized for the leucoemeraldine, emeraldine and pernigraniline oxidation states between -0.2 and 0.8 V (vs. Ag vertical bar AgCl). This fundamental study shows that the structure of the half-oxidized emeraldine form contains quinoid units, which supports the commonly accepted oxidation and reduction scheme of poly (N-alkylanilines). (c) 2007 Elsevier B.V. All rights reserved.


Nyckelord

cyclic voltammetry, electropolymerization, poly(N-alkylanilines), Raman and UV-vis spectroscopy

Senast uppdaterad 2019-14-12 vid 04:43