POLİANİLİN VE POLİ(VİNİL ASETAT) KULLANARAK İLETKEN KOMPOZİT FİLMLERİN HAZIRLANMASI VE KARAKTERİZASYONU

Year 2007, Issue: 014, 47 - 54, 17.12.2007

Meral Karakışla Gülhan Güngör

Abstract

İletken polianilin/poli(vinil asetat) (PAn/PVAc) kompozit filmleri, undop PAn ve PVAc ın dimetilformamit (DMF)
deki çözeltisinden elde edilen filmlerin dop edilmesi ile hazırlandı. Filmlerin iletkenliği PAn/PVAc kütle oranı
60/40 olana kadar arttı ve daha yüksek PAn değerlerinde fazlaca değişmedi. Film iletkenliği üzerine, film kalınlığı
ve dop etme süresinin etkisi araştırıldı ve en yüksek elektriksel iletkenlik sulu 2.0 M HCl çözeltisinde 1 saat dop ile
elde edildi. PAn/PVAc kompozit filmlerinin yüzey morfolojisi SEM ile incelendi, karakterizasyonları iletkenlik
ölçümleri, FTIR ve TGA teknikleri kullanılarak yapıldı.

Keywords

İletken polimer, kompozit, poli(vinil asetat), polianilin

THE PREPARATION AND CHARACTERIZATION OF CONDUCTIVE COMPOSITE FILMS OF POLYANILINE AND POLY(VINYL ACETATE)

Abstract

Polyaniline/poly(vinyl acetate (undoped PAn/PVAc) composite films were prepared by doping of films obtained by
casting of the solution of undoped PAn and PVAc in dimethylformamide (DMF). The electrical conductivity of
films was increased up to 60/40 PAn/PVAc ratio and then level off. The change of the conductivity of films with
film thickness and doping time was investigated. The maximum conductivity was obtained by doping of undoped
films in aqueous 2.0 M HCl solution with one hour. Surface morphology of coductive PAn/PVAc composite films
was examined by SEM techinique. The characterization of composite films was also performed by conductivity
measurements, FTIR and TGA techniques.

Keywords

Conductive polymer, composite, poly(vinyl acetate)

References

• [1] Stejskal,J., Hlavata, D., Holler, P., “Trchova, M., Polyaniline prepared in the presence of various acids: a conductivity study”, Polym. Int., 53: 294-300 (2004).
• [2] Vecino, M., Gonzalez, I., Munoz, M.E., “Santamaria, A., et al, Synthesis of polyaniline and application in the design of formulations of conductive paints”, Poly. Adv. Tech., 15: 560-563 (2004).
• [3] [Niva, Q., Kakuchi, M., Tamamura, T., “Mechanical Properties of Flexible Polypyrrole-Based Conducting Polymer Alloy Films”, Polym. J., 19: 1293-1301 (1987).
• [4] Qin, C., Pires, A.T.N., Belfiore, A.L., “Spectroscopic investigations of specific interactions in amorphous polymer-polymer blends: poly(vinylphenol) and poly(vinyl methyl ketone)”, Macromolecules, 24: 666- 670 (1991).
• [5] Wang, H.L., Fernandez, J.E., “Conducting polymer blends: polypyrrole and poly(vinyl methyl ketone)”, Macromolecules, 25: 6179-6184 (1992).
• [6] Radhakrishman, S., Budger, M.V., Graham, N.B., Polymer, 36: 707-712 (1995).
• [7] Yang, S. and Ruckenstein,E., “Processable conductive composites of polyaniline/poly(alkyl methacrylate) prepared via an emulsion method”, Synth. Met., 59: 1-12 (1993).
• [8] Patil, R.C.T., Aoyanagi, M., Nakayana, K. Ogura, “Preparation and characterization of conducting polymer coating on ABS substrate”, J.Appl.Polym.Sci., 81: 2661- (2001).
• [9] Jia, W., Tchoudakov, R., Segal, E., Narkis, M., Siegmann A., “Electrically conductive, melt-processed ternary blends of polyaniline/dodecylbenzene sulfonic acid, ethylene/vinyl acetate, and low-density polyethylene”, Journal of Polymer Science Part B: Polymer Physics 42: 3750-3758 (2004).
• [10] Erdem, E., Saçak, M. and Krakışla, M., “Synthesis and properties of oxalic acid-doped polyaniline”, Polym. Int., 39: 153-1159 (1996).
• [11] Karakışla, M., Saçak, M., Erdem, E. And Akbulut, U., “Synthesis and characterization of malonic aciddopedpolyaniline”, J. Appl.Electrochem., 27: 309-316 (1997).
• [12] Wei, Y., Sun,Y., Tang, X., J. Phys. Chem., 93: 4878-4885 (1989).
• [13] Karakışla, M., Erdem, E., Saçak, M., “Conductive composite films prepared using undoped polyaniline and poly(methyl methacrylate)”, Polymer Journal, 35: 879-883, 2003.
• [14] Ruckenstein, E., Yang, S., “An emulsion pathway to electrically conductive polyaniline-polystyrene”, Synth.Met., 53: 283-292 (1993).