Sulfonic Acid Ring-Substituted Polyaniline, A Self-Doped Conducting Polymer
- 1 October 1990
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics
- Vol. 189 (1) , 255-261
- https://doi.org/10.1080/00268949008037237
Abstract
Sulfonic acid ring-substituted polyaniline has been synthesized and characterized by elemental analysis, FTIR, UV-vis and electron spin resonance spectroscopy. Approximately 50% of the total number of phenyl rings in the polymer are mono-substituted by -SO− 3 groups. Without external doping, the ring-sulfonated polyaniline has a conductivity of ∼0.03 S/cm; it is therefore a “self-doped” conducting polymer. The water soluble sodium salt of the ring-sulfonated polyaniline is an insulator and can be reversibly converted back to the self-doped conducting form by treatment with aqueous acid.Keywords
This publication has 16 references indexed in Scilit:
- Role of ring torsion angle in polyaniline: Electronic structure and defect statesPhysical Review B, 1990
- Ring-rotational defects in polyanilineSolid State Communications, 1989
- Polaron lattice in highly conducting polyaniline: Theoretical and optical studiesPhysical Review Letters, 1987
- Polyaniline: a new concept in conducting polymersSynthetic Metals, 1987
- Theoretical studies on polyanilineThe Journal of Chemical Physics, 1986
- Extended Huckel calculations on the Pi system of polyanilineSolid State Communications, 1986
- ‘Polyaniline’: Protonic acid doping of the emeraldine form to the metallic regimeSynthetic Metals, 1986
- A 13C CP‐MAS NMR investigation of polyanilineJournal of Polymer Science Part C: Polymer Letters, 1985
- Polyaniline: Protonic Acid Doping to the Metallic RegimeMolecular Crystals and Liquid Crystals, 1985
- “Polyaniline”: Interconversion of Metallic and Insulating FormsMolecular Crystals and Liquid Crystals, 1985