Polymeric ionic liquid—assisted polymerization for soluble polyaniline nanofibers

Abstract

To enhance the solubility of polyanilines (PANI), polymeric ionic liquid (PIL) was introduced into the polymerization synthesis of PANI with various proportions. The structure and properties of the modified PANIs were characterized by 1H NMR, Fourier transform infrared spectroscopy, thermogravimetric analysis, ultraviolet-visible spectrum, etc. It was found that the obtained PANIs doped with PILs were soluble in various organic solvents such as N,N-dimethyl formamide and acetonitrile. Compared with the pure PANI, the PANIs doped by PILs showed remarkable solubility and their chemical structure and conductivity kept integrated.

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Acknowledgements

The authors gratefully acknowledge the valuable help and great support from the Fundamental Research Funds for the Central Universities (Nos. 2232018D3-07, 2232018D3-24 and 2232019G-02), China Postdoctoral Science Foundation (No. 2016M591573), the National Natural Science Foundation of China (Grant No. 21404024) and Changsha Science and Technology Project. The project was funded by State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University.

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Correspondence to Yumin Xia.

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Liu, J., Shen, J., Wang, J. et al. Polymeric ionic liquid—assisted polymerization for soluble polyaniline nanofibers. Front. Chem. Sci. Eng. 15, 118–126 (2021). https://doi.org/10.1007/s11705-020-1916-y

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Keywords

  • polyaniline
  • polymeric ionic liquid
  • doping
  • solubility