NMR study of aging effects in polyaniline CSA

Authors
Beau, B Travers, JP Genoud, F Rannou, P
Citation
B. Beau et al., NMR study of aging effects in polyaniline CSA, SYNTH METAL, 101(1-3), 1999, pp. 778-779
Citations number
3
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
778 - 779
Database
ISI
SICI code
0379-6779(199905)101:1-3<778:NSOAEI>2.0.ZU;2-M
Abstract
Spin dynamics has been investigated by NMR techniques in highly conducting polyaniline (PANI-CSA) aged at 135 degrees C in room atmosphere for times g oing from 0 to 14 days. Proton nuclear relaxation times have been measured as a function of frequency and temperature. Data are analyzed in the frame of an heterogeneous disorder with metallic regions connected by poorly cond ucting disordered chains. Aging acts as a corrosion process of the metallic parts without affecting the dynamics in amorphous zones.