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Self-suspended polypyrrole with liquid crystal property

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Abstract

Polypyrrole (PPy) has attracted wide attention due to its high conductivity, environmental stability, low cost, facile synthesis and doping. However, the rigid backbone and π-conjugation structure of polypyrrole lead to the poor solubility and processability and thus restricting its applications. In this letter, self-suspended PPy was obtained by using a long-chain protonic acid CH3(CH2)8C6H4(OCH2-CH2)10SO3H (NPES) as dopant and then through a common dialysis. Such unique structured PPy is a kind of solvent-free fluid which can flow at or near room temperature. The solubility and processability of self-suspended polypyrrole have been improved effectively due to the introduction of oxyethylene groups and alkyl group. And it also directly presents unique liquid crystal property. Moreover, the self-suspended polypyrrole exhibited a relatively high electrical conductivity reached up to 0.11 S/m, presenting a typical characteristic of the semiconductor. Such self-suspended polypyrrole could be a promising alternative in the field of lightweight battery, super capacitor and metal anti-corrosion.

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Acknowledgements

We are grateful to the financial support of National Natural Science Foundation of China (No. 51673154).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People’s Republic of China

    Jiahui He, Haian Xie, Jie Hong, Zhaodongfang Gao, Zhikang Liu & Chuanxi Xiong

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  1. Jiahui He
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  2. Haian Xie
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  3. Jie Hong
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  4. Zhaodongfang Gao
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  5. Zhikang Liu
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Correspondence to Zhikang Liu or Chuanxi Xiong.

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He, J., Xie, H., Hong, J. et al. Self-suspended polypyrrole with liquid crystal property. J Polym Res 25, 56 (2018). https://doi.org/10.1007/s10965-018-1462-1

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