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Towards the higher solubility and thermal stability of poly(aniline-co-m-bromoaniline)

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Abstract

In the current study, we have described the synthesis and the physical properties of poly(aniline-co-m-bromoaniline) conducting copolymers. The copolymers of different composition are essentially obtained by varying the molar feed ratio of the two monomers. The higher solubility of the copolymers could be procured as compared to polyaniline (PA) in different solvents. The electrical conductivity has been studied by two-probe method; at room temperature, the conductivity of the copolymer decreases upon increasing the molar ratio of m-bromoaniline monomer. The introduction of bromine (–Br) group reduces the degree of conjugation in the polymer chain. Thus, conduction of electrons is prohibited along the conjugated system. In the thermogravimetric analysis (TGA), a three-stage decomposition of the copolymer has been observed. The copolymers of poly(aniline-co-m-bromoaniline) are thermally stable at high temperature. The composition of the copolymer has been confirmed from the binding energies of C–C, C–N, and C–Br in the XPS study.

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Acknowledgements

The authors are highly thankful to the Qatar University and Aligarh College of Education, Aligarh, for providing necessary research facility. We also thankfully acknowledge the facilities provided by CLU and CAM of Qatar University.

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Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, Qatar University, P. O. Box 2713, Doha, Qatar

    Umesh S. Waware, A. M. S. Hamouda & Mohd Rashid

  2. Department of Chemistry, Aligarh College of Education, Aligarh, 202001, India

    Mohd Rashid

  3. Center of Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar

    Peter Kasak

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  1. Umesh S. Waware
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  2. A. M. S. Hamouda
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  3. Mohd Rashid
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  4. Peter Kasak
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Correspondence to Umesh S. Waware or Mohd Rashid.

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Waware, U.S., Hamouda, A.M.S., Rashid, M. et al. Towards the higher solubility and thermal stability of poly(aniline-co-m-bromoaniline). Ionics 24, 3837–3844 (2018). https://doi.org/10.1007/s11581-018-2561-z

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  • DOI: https://doi.org/10.1007/s11581-018-2561-z

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