Abstract
The effect of rate of mass transfer on the surface morphology of electrochemically deposited polyaniline films was studied using scanning electron microscopy (SEM). The rate of mass transfer was controlled by varying the sheet resistance of electrode and the monomer concentration. Both these parameters are found to affect the deposition process and the surface morphology to a considerable extent. The polyaniline film deposited using 0.1 M monomer concentration on electrode with 50 Ω/□ sheet resistance shows a granular structure joined together with fine fibrils. Increase in the monomer concentration and decrease in the sheet resistance of the electrode lead to the enhancement in the growth of the polymer film as revealed from the current time transient measurements. The formation of fibres with different shapes such as rope-like, curved, cyclone-like, petal-like, wavy, wing-like, and criss-cross linking depends on the growth conditions of films. The sheet resistance of electrode mainly determines the number density of these fibres, whereas, the patterning is governed by the monomer concentration.
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References
M. G. Kanatzidis, Chem. Eng. News, Dec. 36 (1990).
S. Roth and W. Graupner, Synth. Met., 55-57, 3623 (1993).
M. Wan, Synth. Met., 31, 51 (1989).
Wu. S. Huang, B. D. Humphrey, and A. G. Mac Diarmid, J. Chem. Soc. Faraday Trans., 82, 2385 (1986).
M. Fujii, K. Arii, and K. Yoshino, J. Phys. Condens. Matter., 3, 7207 (1991).
A. G. Bedekar, S. F. Patil, R. C. Patil, and C. M. Agashe, J. Phys. D, Appl. Phys., 27, 1727 (1994).
C. Agashe, M. G. Takwale, B. R. Marathe, and V. G. Bhide, Sol. Energy Mater., 17, 99 (1988).
C. Agashe and B. R. Marathe, J. Phys. D, Appl. Phys., 26, 2049 (1993).
J. Lukkari, R. Tuomala, S. Ristimaki, and J. Kankare, Synth. Met., 47, 217 (1992).
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Bedekar, A., Patil, S., Patil, R. et al. Morphological Investigations of Electrochemically Deposited Polyaniline Films. Polym J 27, 319–324 (1995). https://doi.org/10.1295/polymj.27.319
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DOI: https://doi.org/10.1295/polymj.27.319
