Abstract
The temperature dependence of direct current (dc) conductivity was studied for various samples of polyaniline-polyvinylchloride (PANI-PVC) blended films. Polyaniline was doped with different concentrations of sulfamic acid in aqueous tetrahydrofuran (THF) and the blended films were prepared by varying the amount of doped PANI relative to a fixed amount of PVC. The dc conductivity of PANI-PVC blended films was measured to determine the effect of sulfamic acid (dopant) in the temperature range (300-400K). The mechanism of conduction is explained by a two-phase model. In order to evaluate the effect of the dopant, conductivity-derived parameters such as the pre-exponential factor (σo) and the activation energy (ΔE) were calculated. The structural changes of polyaniline-PVC blended films were characterized by FTIR spectroscopy that explores information about the suitability of the dopant in the chemical doping process.
| Original language | English |
|---|---|
| Pages (from-to) | 565-577 |
| Number of pages | 13 |
| Journal | Central European Journal of Chemistry |
| Volume | 4 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2006.12 |
Keywords
- Doping
- Electrical conductivity
- Infrared spectra
- Polymer blends
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