SPECTROPHOTOMETRIC INVESTIGATION OF CSA-PROTONATED POLYANILINE SOLUTIONS AND FILMS

Authors
NICOLAU YF BEADLE PM BANKA E
Citation
Yf. Nicolau et al., SPECTROPHOTOMETRIC INVESTIGATION OF CSA-PROTONATED POLYANILINE SOLUTIONS AND FILMS, Synthetic metals, 84(1-3), 1997, pp. 585-586
Citations number
6
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
84
Issue
1-3
Year of publication
1997
Pages
585 - 586
Database
ISI
SICI code
0379-6779(1997)84:1-3<585:SIOCPS>2.0.ZU;2-2
Abstract
Some differences in the UV-Vis-NIR light absorption spectra of camphor sulfonic acid-protonated polyaniline (CSA-PAn) solutions or thin films were observed. They are related to the molecular weight (MW), aggrega tion state of the polyaniline and to the counteranion nature. High MW polyaniline synthesized at low temperatures gives CSA-PAn films showin g an enhanced polaron delocalization. The substitution of the CSA. cou nteranions by Cl- without intermediate deprotonation keeps the polaron delocalization state.