Abstract
A method was developed for the determination of the protonation constants (K), the stoichiometric factor of the protonation reaction (n) and pH of the half-colour transition point (pH1/2) of three different types of electrochemically polymerized poly(aniline) (PANI) and poly(o-methylaniline) (PoMeANI) films. The protonation constants describe the reversible emeraldine base (EB) to emeraldine salt (ES) transition. The calculations of the constants were based on absorbance data obtained from UV-vis measurements of the polymer films equilibrated in pH buffer solutions between pH 2-12.
| Original language | English |
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| Publication status | Published - 2008 |
| MoE publication type | O2 Other |
| Event | ICSM 2018, International Conference on Science and Technology of Synthetic Metals - Porto de Galinhas , Brazil Duration: 6 Jul 2008 → 11 Jul 2008 |
Conference
| Conference | ICSM 2018, International Conference on Science and Technology of Synthetic Metals |
|---|---|
| Country/Territory | Brazil |
| City | Porto de Galinhas |
| Period | 06/07/08 → 11/07/08 |
Keywords
- Electrically conducting polymer
- Polyaniline
- Protonation constants
- pH sensitivity