A SOLUBLE AND ELECTROACTIVE POLYANILINE OBTAINED BY COUPLING OF 4-SULFOBENZENEDIAZONIUM ION AND POLY(N-METHYLANILINE)

Citation
Ga. Planes et al., A SOLUBLE AND ELECTROACTIVE POLYANILINE OBTAINED BY COUPLING OF 4-SULFOBENZENEDIAZONIUM ION AND POLY(N-METHYLANILINE), Synthetic metals, 97(3), 1998, pp. 223-227
Citations number
17
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
ISSN journal
03796779
Volume
97
Issue
3
Year of publication
1998
Pages
223 - 227
Database
ISI
SICI code
0379-6779(1998)97:3<223:ASAEPO>2.0.ZU;2-M
Abstract
A modified polyaniline was obtained by coupling of the 4-sulfobenzened iazonium ion with poly (N-methylaniline) (PNMANI) at temperatures belo w 5 degrees C and in basic or neutral pH conditions. The FT-IR spectra of the product show all bands due to the poly( N-methylaniline). Addi tional bands at 1007, 1003 and 623 cm(-1) are assigned to the vibratio ns of the sulfonate group, incorporated in the polymer matrix. A new b and at 1485 cm(-1) is also present, assigned to the stretching of the azo bond. The polymer is soluble in aqueous base. The results suggest the formation of an ate-substituted poly (N-methylaniline): poly (4-su lfobenzenazo-(N-methylaniline)) (p(4SBA-NMANI)). The solution spectra show absorption bands at 242, 310 and 595 nm. Thin films deposited on glassy carbon show clear electroactivity. The method could be used to produce electroactive films with bonded functionalities. (C) 1998 Else vier Science S.A. All rights reserved.