Chemical degradation of aged CSA-protonated PANI films analyzed by XPS

Citation
P. Rannou et al., Chemical degradation of aged CSA-protonated PANI films analyzed by XPS, SYNTH METAL, 101(1-3), 1999, pp. 823-824
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
101
Issue
1-3
Year of publication
1999
Pages
823 - 824
Database
ISI
SICI code
0379-6779(199905)101:1-3<823:CDOACP>2.0.ZU;2-4
Abstract
Highly conductive CSA-protonated PANI films cast from m-cresol solutions of high Mw PANI were aged at 135 degrees C in air up to 20 days. Pristine and aged films were characterized by: conductivity measurements, elemental ana lysis, XPS and FTIR, The conductivity decay is correlated to a progressive degradation involving: (i) dedoping, (ii) CSA desulfonation, fragmentation and sulfonation of PANI backbone, (iii) oxidation (O incorporation), and (i v) chemical crosslinking by formation of interchain tertiary amine bonds.