Synthesis and Characterization of Perfluorooctanoic Acid Anionic Surfactant Doped Nanosize Polyaniline


Surfactant doped polyaniline was synthesized in the aqueous solution of aniline and anionic surfactant of perfluorooctanoic acid (PFO) by chemical synthesis using potassium peroxy disulphate as an oxidant by varying the aniline to surfactant ratio. The solubility of the chemically prepared surfactant doped polyaniline (PANI) was ascertained and it showed good solubility in dimethyl sulfoxide (DMSO), dimethylformamide (DMF), acetone, acetonitrile, ethanol, aceticacid, trichloroethylene, dichloromethane, tetrahydrofuran, ethylacetate, diethylether, toluene, chloroform and sparingly soluble in n-hexane and water. The prepared polymers were characterized by fourier transform infrared spectroscopy (FTIR), UV-visible, X-ray diffraction (XRD), cyclic voltammetric (CV), EIS and scanning electron microscopy (SEM). The analysis of UV-visible and FTIR showed that aniline has been polymerized to PANI in its conducting emeraldine form. FTIR spectra showed that the peaks at 1670, 3315 and 1400 cm-1 corresponded to PFO. FTIR spectra showed that amine peak observed at 1593 cm-1 was shifted to lower wave number due to the interaction between PANI and the surfactant. SEM analysis showed that the variation in morphology of doped PANI was predominantly dependent on the concentration of the surfactant. Elemental analysis was done by energy dispersive spectroscopic (EDAX) which shows the presence of C, N, O, S and F. XRD pattern showed that the formation of nanosized (18 nm) and crystalline polymer. CV studies of the synthesized polymer exhibited good adherent behavior on electrode surface. It exhibited three oxidation peaks at approximately 0.283 V, 0.541 V and 0.989 V and two reduction peaks at 0.1421 and 0.3854 V. Electrical conductivity of PFO doped PANI was studied by impedance spectroscopic method.

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Mahalakshmi, B. and Vedhi, C. (2014) Synthesis and Characterization of Perfluorooctanoic Acid Anionic Surfactant Doped Nanosize Polyaniline. Open Journal of Synthesis Theory and Applications, 3, 57-68. doi: 10.4236/ojsta.2014.34008.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Scrosati, B. (1998) Conducting Polymers: Advanced Materials for New Design Rechargeable Lithium Batteries. Polymer International, 47, 50-55.<50::AID-PI4>3.0.CO;2-8
[2] Falcao, E.H.L. and De Azevedo, W.M. (2002) Polyanilinepolyvinyl Alcohol Composite as an Optical Recording Material. Synthetic Metals, 128, 149-154.
[3] Misoska, V., Ding, J., Davey, J.M., Price, W.E., Ralph, S.F. and Wallace, G.G. (2001) Polypyrrole Membranes Containing Chelating Ligands: Synthesis, Characterisation and Transport studies. Polymer, 42, 8571-8579.
[4] Guernion, N., Ewen, R.J., Pihlainen, K., Ratcliffe, N.M. and Teare, G.C. (2002) The Fabrication and Characterisation of a Highly Sensitive Polypyrrole Sensor and Its Electrical Responses to Amines of Differing Basicity at High Humidities. Synthetic Metals, 126, 301-310.
[5] Yamato, H., Koshiba, T., Ohwa, M., Wernet, W. and Matsumura, M. (1997) A New Method for Dispersing Palladium Microparticles in Conducting Polymer Films and Its Application to Biosensors. Synthetic Metals, 87, 231-236.
[6] Dhawan, S.K., Singh, N. and Venkatachala, S. (2002) Shielding Behaviour of Conducting Polymer-Coated Fabrics in X-Band, W-Band and Radio Frequency Range. Synthetic Metals, 129, 261-267.
[7] Ohtani, A., Abe, M., Ezoe, M., Doi, T., Miyata, T. and Miyke, A. (1993) Synthesis and Properties of High-MolecularWeight Soluble Polyaniline and Its Application to the 4MB-Capacity Barium Ferrite Floppy Disks Antistatic Coating. Synthetic Metals, 57, 3696-3701.
[8] Salanek, W.R., Lundstrom, I., Huang, W.S. and MacDiarmid, A.G. (1986) A Two-Dimensional Surfacestate Diagram for Polyaniline. Synthetic Metals, 13, 291-297.
[9] Pandey, S.S., Annapoorni, S. and Malhotra, B.D. (1993) Synthesis and Characterization of Poly(aniline-co-o-anisidine). Macromolecules, 26, 3190-3193.
[10] Andreatta, A., Heeger, A.J. and Smith, P. (1990) Electrically Conductive Poly Belend Fibers of Polyaniline and Poly(p-phenylene Terephthalamide). Polymer Communications, 31, 275-295.
[11] Nazzal, A.I. and Street, G.B. (1985) Pyrrole-Styrene Graft Copolymers. Journal of Chemical Society, Chemical Communications, 6, 375-376.
[12] Aldissi, M. (1984) Polyacetylene Block Copolymers. Synthetic Metals, 13, 87-100.
[13] Nalwa, H.S. (1990) Ferroelectric Polymers: Chemistry. Journal of Physics D: Applied Physics, 23, 745-748.
[14] Armes, S.P. and Aldissi, M. (1989) Novel Colloidal Dispersons of Polyaniline. Journal of Chemical Society, Chemical Communications, 2, 88-89.
[15] Kohut-Svelko, N., Reynaud, S. and Francois, J. (2005) Synthesis and Characterization of Polyaniline Prepared in the Presence of Nonionic Surfactants in an Aqueous Dispersion. Synthetic Metals, 150, 107-114.
[16] Kinlen, P.J., Liu, J., Ding, Y., Graham, C.R. and Remsen, E.E. (1998) Emulsion Polymerization Process for Organically Soluble and Electrically Conducting Polyaniline. Macromolecules, 31, 1735-1744.
[17] Palaniappan, S. (2002) Preparation of Polyaniline-Sulfate Salt by Emulsion and Aqueous-Polymerization Pathway without Using-Protonic Acid. Polymers for Advanced Technologies, 13, 54-59.
[18] Xia, H. and Wang, Q. (2001) Synthesis and Characterization of Conductive Polyaniline Nanoparticles through Ultrasonic Assisted Inverse Microemulsion Polymerization. Journal of Nanoparticle Research, 3, 399-409.
[19] Rao, P.S., Subrahmanya, S. and Sathyanarayana, D.N. (2002) Inverse Emulsion Polymerization: A New Route for the Synthesis of Conducting Polyaniline. Synthetic Metals, 128, 311-316.
[20] Rao, P.S., Sathyanarayana, D.N. and Palaniappan, S. (2002) Polymerization of Aniline in an Organic Peroxide System by the Inverted Emulsion Process. Macromolecules, 35, 4988-4996.
[21] Andrew, D.W.C., Rear, E.A.O. and Grady, B.P. (2003) Adsorbed Surfactants as Templates for the Synthesis of Morphologically Controlled Polyaniline and Polypyrrole Nanostructures on Flat Surfaces: From Spheres to Wires to Flat Films. Journal of the American Chemical Society, 125, 14793-14800.
[22] Rabe, J.P. (1998) Self-Assembly of Single Macromolecules at Surfaces. Current Opinion in Colloid and Interface Science, 3, 27-31.
[23] Ichinohe, D., Aria, T. and Kise, H. (1997) Synthesis of Soluble Polyaniline in Reversed Micellar Systems. Synthetic Metals, 84, 75-76.
[24] Xei, H.Q., Ma, Y.M. and Guo, J.S. (1998) Conductive Polyaniline-SBS Composites from in Situ Emulsion Polymerization. Polymer, 40, 261-265.
[25] Osterholm, J.E., Cao, Y., Klavetter, F. and Smith, P. (1994) Emulsion Polymerization of Aniline. Polymer, 35, 29022906.
[26] Armes, S.P., Miller, J.F. and Vincent, B. (1987) Aqueous Dispersions of Electrically Conducting Monodisperse Polypyrrole Particles. Journal of Colloid and Interface Science, 118, 410-416.
[27] Armes, S.P. and Aldissi, M. (1990) Preparation and Characterization of Colloidal Dispersions of Polypyrrole Using Poly(2-vinyl pyridine)-Based Steric Stabilizers. Polymer, 31, 569-574.
[28] Hayashi, S., Takeda, S., Kaneto, K., Yoshino, K. and Matsuyama, T. (1987) Radiation Induced Effect in Conducting Polymers. Synthetic Metals, 18, 591-596.
[29] Tang, M., Wen, T.Y., Du, T.B. and Chen, Y.P. (2003) Synthesis of Electrically Conductive Polypyrrole-Polystyrene Composites Using Supercritical Carbon Dioxide I. Effects of the Blending Conditions. European Polymer Journal, 39, 143-149.
[30] Cao, Y., Andreatta, A., Heeger, A.J. and Smith, P. (1989) Influence of Chemical Polymerization Conditions on the Properties of Polyaniline. Polymer, 30, 2305-2311.
[31] Myers, R.E. (1986) Chemical Oxidative Polymerization as a Synthetic Route to Electrically Conducting Polypyrroles. Journal of Electronic Materials, 15, 61-69.
[32] Sun, B., Jones, J.J., Burford, R.P. and Skyllas-Kazacos, M. (1989) Stability and Mechanical Properties of Electrochemically Prepared Conducting Polypyrrole Films. Journal of Materials Science, 24, 4024-4029.
[33] Dutta, K., Mahale, R.Y., Arulkashmir, A. and Krishnamoorthy, K. (2012) Reversible Assembly and Disassembly of Micelles by a Polymer that Switches between Hydrophilic and Hydrophobic Wettings. Langmuir, 28, 10097-10104.
[34] Das, C. and Krishnamoorthy, K. (2014) Disassembly of Micelles in Nanoscopic Space to Prepare Concentric Nanotubes with Variable Hydrophobic Interiors. Chemical Communications, 50, 5905-5908.
[35] Khan, R. and Dhayal, M. (2009) Chitosan/Polyaniline Hybrid Conducting Biopolymer Base Impedimetric Immunosensor to Detect Ochratoxin-A. Biosensors and Bioelectronics, 24, 1700-1705.
[36] Ansari, A.A., Khan, R., Sood, K.N. and Malhotra, B.D. (2009) Polyaniline-Cerium Oxide Nanocomposite for Hydrogen Peroxide Sensor. Journal of Nanoscience and Nanotechnology, 9, 4679-4685.
[37] Kaushik, A., Khan, R., Gupta, V., Malhotra, B.D. and Singh, S.P. (2009) Hybrid Cross Linked Polyaniline-WO3 Nanocomposite Thin Films for NOx Gas Sensing. Journal of Nanoscience & Nanotechnology, 9, 1792-1796.
[38] Kaushik, A., Kumar, J., Tiwari, M.K., Khan, R., Malhotra, B.D., Gupta, V. and Singh, S.P. (2008) Fabrication and Characterization of Polyaniline-ZnO Hybrid Nanocomposite Thin Films. Journal of Nanoscience & Nanotechnology, 8, 1757-1761.
[39] Khan, R. (2011) Supported TritonX-100 Polyaniline Nano-Porous Electrically Active Film onto Indium-Tin-Oxide Probe for Sensors Application. Advances in Chemical Engineering and Science, 1, 140-146.
[40] Fink, J. and Leising, G. (1986) Momentum-Dependent Dielectric Functions of Oriented Trans-Polyacetylene. Physical Review B, 34, 5320-5322.
[41] Kazim, S., Ali, V., Zulfequar, M., Haque, M. and Husain, M. (2006) Electrical, Thermal and Spectroscopic Studies of Te Doped Polyaniline. Current Applied Physics, 7, 68-75.
[42] Aldissi, M. and Armes, S.P. (1991) Colloidal Dispersion of Conducting Polymers. Progress in Organic Coatings, 19, 21-58.
[43] Prasad, K.R. and Munichandraiah, N. (2001) Potentiodynamic Deposition of Polyaniline on Non-Platinum Metals and Characterization. Synthetic Metals, 123, 459-468.
[44] Cooper, J.C. and Hall, E.A.H. (1992) Electrochemical Response of an Enzyme-Loaded Polyaniline Film. Biosensors & Bioelectronics, 7, 473-485.

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