M.J. González-Tejera* and G. Hervás Martín

Dpto. Química Física I. Fac. CC. Químicas. Universidad Complutense. 28040-Madrid, Spain

Received 27 September 2006; accepted 17 July 2007

Abstract

In order to investigate the electrochemical behaviour and morphology under different experimental conditions of poly-N-methylpyrrole doped with sodium p-toluensulphonate (NaTsO) in aqueous medium, the doped polymer was potentiostatically synthesized at four potential values: 0.6, 0.8, 0.9 and 1.0 V. The morphological study reveals a compact texture in these polymeric films; after being submitted to a positive potential those films were wrinkled. Cyclic voltammetry was used to characterize polymer films (pNMPy/TsO). The corresponding voltammograms revealed a reversible doping/de-doping process in those films obtained at η_p = 0.8 V. Different parameters such as: negative potential limit (E_i), positive potential limit (E_f), sweep rate (v) and continuous cycling were varied.

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References

1.K. Kanazawa, A.F. Díaz, R.H. Geiss, W.D. Gill, J.F. Kwak, J.A. Logan, J.F. Rabolt, G.B. Street, J.C.S. Chem. Comm. (1979) 854.        [ Links ]

2.H. Koezuka, S. Etoh, J. Appl. Phys. 54  (1983) 2511.

4.P. Novák, W. Vielstich, J. Electroanal. Chem. 300 (1991) 99.

5.M.S. Kiani, G.R. Mitchell, Synth. Met. 46 (1992) 293.

6.M.J. González-Tejera, M.V. García, E. Sánchez de la Blanca, M.A. Raso, I. Carrillo, Thin Solid Films (in publication).

7.J.M. Charlesworth, A.C. Partridge, N.J. Garrard, J. Phys. Chem. 97 (1993) 5428.

8.L.L. Miller, Q.X. Zhou, Macromolecules 20 (1987) 1594.

9.Q.X. Zhou, L.L. Miller, J.R. Valentine, J. Electroanal. Chem. 261 (1989) 147.

10.L.A. Prezyna, G.E. Wnek, Synth. Met. 41 (1991) 979.

11. J. Dumanska, K. Maksymiuk, Polish Journal of Chemistry 78 (2004) 1477 – 1491.

12.U. Geibler, M.L. Hallensleben, L.Toppare, Adv. Materials 3 (1991) 104.

14.K. Maksymiuk,. Electroanalysis 8 (1996) 661.

15.A. Wojda, K. Maksymiuk, J. Electroanal. Chem. 424  (1997) 93.

16.A.Wojda, K. Maksymiuk, Electroanalysis 10 (1998) 1269.

17.K. Hyodo, M. Omae, Electrochim. Acta 35 (1990) 1245.

18.J. Ouyang, Y. Li, J. Appl. Polymer Sci. 59 (1996) 1827.

19.D.J. Shirale, V.K. Gada, P.D. Gaiwad, H.J. Kharat, K.P. Kakda, P.A. Savale, S.S. Hussaini, N.R. Dhumane, N.D. Shirsat, Mat. Letters 60 (2006) 1407 – 1411.

20.R.J. Mammone, M. Binder, J. Electrochem. Soc. 137 (1990) 2135.

21.R. Singh, A.K. Narula, R.P. Tandon, A. Mansingh, S. Chandra. J. Appl. Phys. 80 (1996) 1476.

22.R. Singh, A.K. Narula, R.P. Tandon, A. Mansingh, S. Chandra, J. Appl. Phys. 80 (1996) 985.

24.G. Zotti, G. Schiavon, N. Comisso, Synth. Met. 40 (1991) 309.

25.E. Larraz, M.I. Redondo, M.J. González-Tejera, M.A. Raso, J. Tortajada, E. Sánchez de la Blanca, M.V. García, Synth. Met. 122 (2001) 413.

26.E.M. Genies, A. Syed, Synth. Met. 10 (1984/85) 21.

27.T.F. Otero, R. Tejada, S. Elola, Polymer 38 (1987) 651.

28.B. Zinger, Synth. Met. 30 (1989) 209.

29.I. Carrillo, E. Sánchez de la Blanca, M.J. González-Tejera, Polymer 42 (2001) 9447.

30.Y. Shen, J. Qiu, R. Qian, Makromol. Chem. 188 (1987) 2041.

31.I. Carrillo, M.J. González-Tejera, I. Hernández-Fuentes, Solid State Comm. 95 (1995) 107.

32.T.F. Otero, in “Modern Aspect of Electrochemistry” nº 33. R.E. White (Ed.), Kluwer Ac. (1999) New York.

34.G.M. Spinks, G.G. Wallace, L. Liu, D. Zhou, Macromol. Symp. 192 (2003) 161.

35.K. Hyodo, M. Omae, J. Electroanal. Chem. 292 (1990) 93.

36.A. Cambra, M.I. Redondo, M.J. González-Tejera, Synthetic Metals 139 (2003) 21.

37.A. Díaz, J.J. Castillo, J.A. Logan, Y.W. Lee, J. Electroanal. Chem. 29 (1981) 115.

38.T. Schimidzu, A. Ohtani, T. Iyoda, K. Honda, J. Electroanal. Chem. 224 (1987) 123.

39.R. John, G.G. Wallace, J. Electroanal. Chem. 306 (1991) 157.

* Corresponding author. E-mail address: mjgonte@quim.ucm.es