PROTONATION OF POLYANILINE WITH LIGHTLY SULFONATED POLYSTYRENE

Authors
FU YP WEISS RA
Citation
Yp. Fu et Ra. Weiss, PROTONATION OF POLYANILINE WITH LIGHTLY SULFONATED POLYSTYRENE, Synthetic metals, 84(1-3), 1997, pp. 103-104
Citations number
9
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
103 - 104
Database
ISI
SICI code
0379-6779(1997)84:1-3<103:POPWLS>2.0.ZU;2-Y
Abstract
Protonation of polyaniline base with lightly sulfonated polystyrene in polar solvents such as dimethyl sulfoxide (DMSO) and N-methyl pyrroli done (NMP) was investigated by UV-Vis absorption spectroscopy. The iso sbestic point clearly shows that quinoid unit and semiquinoid unit are in equilibrium and is a function of the sulfonic acid concentration. The protonation of polyaniline is retarded in NMP compared to DMSO due to prevalent hydrogen bonding.