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Synthesis of poly(ether ether ketone) assisted by microwave irradiation and its characterization

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Abstract

Poly(ether ether ketone) (PEEK) was synthesized with a good yield, by nucleophilic substitution reaction of 4,4’-difluorobenzophenone (DFBP) with hydroquinone (HQ) in the presence of anhydrous potassium carbonate (K2CO3) under microwave (MW) irradiation. The highest yield of 96.1% was obtained using sulfolane as the solvent and with a reaction time of only 55 min. The reaction time was reduced greatly compared with conventional heating. The product was characterised by infrared spectroscopy (IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The polymer, having inherent viscosities of 0.71 dlg-1, has excellent thermal stability as shown by 10% weight loss in nitrogen at about 563 °C. The XRD pattern confirmed the semicrystalline character of PEEK synthesized.

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Authors and Affiliations

  1. Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, South-Central University for Nationalities, 430074, Wuhan, P.R. China

    Jun Yin, Aiqing Zhang, Kong Yong Liew & Lihua Wu

Authors
  1. Jun Yin
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  2. Aiqing Zhang
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  3. Kong Yong Liew
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  4. Lihua Wu
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Correspondence to Aiqing Zhang.

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Yin, J., Zhang, A., Liew, K.Y. et al. Synthesis of poly(ether ether ketone) assisted by microwave irradiation and its characterization . Polym. Bull. 61, 157–163 (2008). https://doi.org/10.1007/s00289-008-0942-6

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  • DOI: https://doi.org/10.1007/s00289-008-0942-6

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