Bhattacharyya, S. ; Saha, S. K. ; Chakravorty, M. ; Mandal, B. M. ; Chakravorty, D. ; Goswami, K. (2001) Frequency-dependent conductivity of interpenetrating polymer network composites of polypyrrole-poly(vinyl acetate) Journal of Polymer Science Part B : Polymer Physics, 39 (16). pp. 1935-1941. ISSN 0887-6266
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/polb.11...
Related URL: http://dx.doi.org/10.1002/polb.1168
Abstract
The frequency-dependent conductivity of interpenetrating polymer network composites of polypyrrole (PPy) and poly(vinyl acetate) (PVAc) synthesized by FeCl3-impregnated PVAc films being dipped into solutions of pyrrole in water was investigated over a frequency range of 100 Hz to 2 MHz and a temperature range of 110-300 K. For specimens with a PPy content less than the percolation threshold, the quantum mechanical tunneling of electrons was the conduction mechanism. For specimens with a higher PPy content, correlated barrier hopping of electrons appeared to be operative.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Alternating Current (AC) Conductivity; IPNs; Polypyrroles; Poly(Vinyl Acetate) |
| ID Code: | 65037 |
| Deposited On: | 15 Oct 2011 12:16 |
| Last Modified: | 15 Oct 2011 12:16 |
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