Applied Physics A

, 125:127 | Cite as

Poly(aniline-co-2-hydroxyaniline): towards the thermal stability and higher solubility of polyaniline

  • Umesh Somaji WawareEmail author
  • A. M. S. Hamouda
  • Mohd RashidEmail author


Here, we adopted a donor–acceptor criteria for charge transfer and synthesize the thermally stable copolymers of poly(aniline-co-2-hydroxyaniline) (PA-co-2-HA) by in-situ copolymerization method having different compositions. The co-monomers used in the synthesis were aniline and 2-hydroxyaniline to obtain the (PA-co-2-HA). UV–Vis spectroscopy was used to see the change in bandgap (Eg) between HOMO and LUMO for the electronic transitions. FT-IR analysis has been performed to get functional details of polymers. The electrical conductivity copolymer was recorded by the two-probe method. The conductivity of copolymer depends upon the amount of molar feed in the composition. To probe the surface morphology and roughness profile, atomic force microscopy (AFM) has been applied. The thermal stability of the copolymers (PA-co-2-HA)s has been studied by thermogravimetric analysis (TGA). The particle size of the copolymer varies in the range of 100–500 nm as determined by particle size analyzer. The SEM analysis has been carried out to study the morphological behavior of the copolymer. 1H-NMR spectroscopy was used to study the structural details of the protons present in the copolymer.



We acknowledge the Qatar University, Doha, for providing required research fund to carry out the work. We do acknowledge the support for the instrumental analysis of sample by Central Lab Unit (CLU) and Centre for Advance Material (CAM) of the University.


  1. 1.
    S.H. Park, A. Roy, S. Beaupre, S. Cho, N. Coates, J.S. Moon, D. Moses, M. Leclerc, K. Lee, A.J. Heeger, Bulk heterojunction solar cells with internal quantum efficiency approaching. Nat. Photonics 3, 297 (2009)ADSGoogle Scholar
  2. 2.
    J. Hou, H.-Y. Chen, S. Zhang, R.I. Chen, Y. Yang, Y. Wu, G. Li, Synthesis of a low band gap polymer and its application in highly efficient polymer solar cells. J. Am. Chem. Soc. 131, 15586 (2009)Google Scholar
  3. 3.
    H.-Y. Chen, J. Hou, S. Zhang, Y. Liang, G. Yang, Y. Yang, L. Yu, Y. Wu, G. Li, Polymer solar cells with enhanced open-circuit voltage and efficiency. Nat. Photonics. 3, 649 (2009)ADSGoogle Scholar
  4. 4.
    S. Hellstrom, J. Lars, A. Lindgren, Y Zhou, F. Zhang, O. Inganas, Synthesis and characterization of three small band gap conjugated polymers for solar cell applications. Polym. Chem. 1, 1272 (2010)Google Scholar
  5. 5.
    J. Roncali, Synthetic principles for bandgap Control in linear π-conjugated systems. Chem. Rev. 97, 173 (1997)Google Scholar
  6. 6.
    J.H. Burroughes, D.D.C. Bradey, A.R. Brown, R.N. Marks, K. Mackay, R.H. Friend, P.L. Burn, A.B. Holmes, Light-emitting diodes based on conjugated polymers. Nature. 347, 539 (1990)ADSGoogle Scholar
  7. 7.
    D.R. Baigent, P.J. Hamer, R.H. Friend, S.C. Moratti, A.B. Holmes, Polymer electroluminescence in the near infra-red. Synth. Met. 71, 2175 (1995)Google Scholar
  8. 8.
    V.D. Parkar, Energetics of electrode reactions. II. The relationship between redox potentials, ionization potentials, electron affinities, and solvation energies of aromatic hydrocarbons. J.Am. Chem.Soc. 98(1), 98 (1976)Google Scholar
  9. 9.
    L.E. Lyons, Energy gaps in organic semiconductors derived from electrochemical data. Aust. J.Chem. 33, 1717 (1980)Google Scholar
  10. 10.
    R.O. Loutfy, Y.C. Cheng, Defect state model and effect of transition metal impurities on metal-free phthalocyanine: electrical and photoconductive properties. J.Chem.Phys. 73, 2911 (1980)ADSGoogle Scholar
  11. 11.
    J.P. Lowe, S.A. Kafafi, Effects of chemical substitution on polymer band gaps: transferability of band-edge energies. J.Am.Chem.Soc. 106, 5837 (1984)Google Scholar
  12. 12.
    Z.G. Soos, G.W. Hayden, Site energies for π-electron models of conjugated polymers. Synth.Met. 28, D543 (1989)Google Scholar
  13. 13.
    G. Han, Y. Liu, L. Zhang, E. Kan, S. Zhang, J. Tang, W. Tang, MnO2 nanorods intercalating graphene oxide/polyaniline ternary composites for robust high-performance supercapacitors. Scientific Reports 4, 1–7 (2014)Google Scholar
  14. 14.
    K. Deb, A. Bera, B. Saha, Tuning of electrical and optical properties of polyaniline incorporated functional paper for flexible circuits through oxidative chemical polymerization. RSC Adv. 6, 94795 (2016)Google Scholar
  15. 15.
    S. Bai, Y. Zhao, J. Sun, Y. Tian, R. Luo, D. Li, A. Chen, Ultrasensitive room temperature NH3 sensor based on a graphene–polyaniline hybrid loaded on PET thin film. Chem.Comm. 51, 7524 (2015)Google Scholar
  16. 16.
    J. Zhang, D. Shan, S. Mu, A promising copolymer of aniline and m-aminophenol: Chemical preparation, novel electric properties and characterization. Polymer 48, 1269 (2007)Google Scholar
  17. 17.
    P. Saini, V. Choudhary, S. Details, Electrical properties, and electromagnetic interference shielding response of processable copolymers of aniline. J. Mater. Sci. 48, 797 (2013)ADSGoogle Scholar
  18. 18.
    H. Yoon, B.M. Jung, H. Lee, Electrical transport in conductive blends of polyaniline in poly(methyl methacrylate). Synth. Met. 63,47, (1994)Google Scholar
  19. 19.
    S.K. Dhawan, D.C. Trivedi, Poly (o-phenetidine)- a soluble conducting polymer: synthesis, characterization and its uses. Synth. Met. 60, 63 (1993)Google Scholar
  20. 20.
    P. Saini, R. Jalan, S.K. Dhawan, Synthesis and characterization of processable polyaniline doped with novel dopant NaSIPA. J. Appl. Polym. Sci. 108, 1437 (2008)Google Scholar
  21. 21.
    A.G. MacDiarmid, J.C. Chiang, A.F. Richter, A.J. Epstein., Polyaniline: a new concept in conducting polymers. Synth. Met. 18, 285–290 (1987)Google Scholar
  22. 22.
    K. Tzou, R.V. Gregory, A method to prepare soluble polyaniline salt solutions - in situ doping of PANI base with organic dopants in polar solvents. Synth. Met. 53, 365 (1993)Google Scholar
  23. 23.
    M. Yang, K. Cao, L. Sui, Q. Ying, J. Zhu, A. Waas, E.M. Arruda, J. Kieffer, M.D. Thouless, N.A. Kotov, Dispersions of aramid nanofibers: a new nanoscale building block. ACS Nano. 5(9), 6945 (2011)Google Scholar
  24. 24.
    X. Jing, Y. Wang, D. Wu, J. Qiang, Sonochemical synthesis of polyaniline nanofibers. Ultrasonics Sonochem. 14, 75 (2007)Google Scholar
  25. 25.
    R.M. Silverstein, F.X. Webster, Identification of organic compounds, Wiley, Inc,Edition 7th, published. 88 (2005)Google Scholar
  26. 26.
    V.G. Kulkarni, L.D. Cambell, W.R. Mathew, Thermal stability of polyaniline. Synth. Met. 30, 321 (1989)Google Scholar
  27. 27.
    P. Kar, N. Pradhan, C. Adhikari, A novel route for the synthesis of processable conducting poly(m-aminophenol),Material Chemistry and Physics, 1, 59 (2008)Google Scholar
  28. 28.
    T. Gopalaswamy, M. Gopalaswamy, M. Gopichand, Poly meta-aminophenol: chemical synthesis, characterization and AC impedance study. J. Polym. 11, 827043 (2014)Google Scholar
  29. 29.
    U.S. Waware, A.M.S. Hamouda, M. Rashid, G..J.Summers, The spectral and morphological studies of the conductive polyaniline thin film derivatives by the in situ copolymerization. J. Mater. Sci.: Mater. Electron. 28, 15178 (2017)Google Scholar
  30. 30.
    H. Mark, in Der feste Körper, ed. by R. Sänger (Hirzel, Leipzig, 1938), pp. 65–104Google Scholar
  31. 31.
    R. Houwink, Zusammenhang zwischen viscosimetrisch undosmotisch bestimm-ten polymerisationsgraden bei hochpolymeren. J. Prakt. Chem. 157, 15 (1940)Google Scholar
  32. 32.
    L. Sapna Jadoun, U. Biswal, Riaz, Designed monomer and polymers, vol.21 no.1 75–81 (2018)Google Scholar
  33. 33.
    L.J. Fetters, J.S. Lindner, J.W. Mays, J. Phys. Chem. Ref. Data, Vol. 23, No. 4 (1994)Google Scholar

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Authors and Affiliations

  1. 1.Department of Mechanical and Industrial Engineering, College of EngineeringQatar UniversityDohaQatar
  2. 2.Department of ChemistryAligarh College of EducationAligarhIndia

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