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Design and preparation of high-performance amine-based poly(ether ketone)s with strong photonic luminescence

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Abstract

Amine-based poly(ether ketone)s (A-PEKs), as novel high-performance functional polymers, have been obtained by the polycondensation of dibromo ketones with aromatic ether diamines via palladium-catalyzed aryl amination reaction. The structures of the polymers are characterized by means of FT-IR, 1H NMR spectroscopy and elemental analysis, the results show a good agreement with the proposed structures. DSC and TGA measurements exhibit that polymers possess high glass transition temperature (T g ≥ 175 °C) and good thermal stability with high decomposition temperatures (T 5 ≥ 400 °C). Based on the hydrogen bonds between the polymer chains, thin films of A-PEKs show great mechanical behaviors with high tensile strength up to 89.5 Mpa. In addition, due to the photoinduced intramolecular charge-transfer (ICT) of A-PEKs, these synthesized polymers are endowed with significantly strong photonic luminescence in N,N′-dimethylformamide.

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Acknowledgements

This research was financially supported by the National Natural Science Foundation of China (No. 21202134), the Research Fund for the Doctoral Program of Southwest University of Science and Technology (No. 12zx7129), the Open Project of State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials (11zxfk26). We thank the Centre of Testing & Analysis, Southwest University of Science and Technology for UV and fluorescence measurements.

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Correspondence to Guanjun Chang or Runxiong Lin.

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Chang, G., Yang, L., Yang, J. et al. Design and preparation of high-performance amine-based poly(ether ketone)s with strong photonic luminescence. J Mater Sci 49, 7213–7220 (2014). https://doi.org/10.1007/s10853-014-8428-4

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