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Microwave promoted synthesis and characterization of isomeric poly(ether ether ketone)s

Authors

  • Man Li,

    Corresponding author
    1. Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei Province, People's Republic of China
    • Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei Province, People's Republic of China
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  • Aiqing Zhang,

    1. Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei Province, People's Republic of China
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  • Jun Yin,

    1. Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei Province, People's Republic of China
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  • Kong Yong Liew

    1. Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei Province, People's Republic of China
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Abstract

A series of isomeric poly(ether ether ketone)s were synthesized using microwave-assisted method by nucleophilic substitution reaction of hydroquinone and 4,4′-biphenol with 4,4′-difluorobenzophenone (DFBP) or 2,4′-DFBP in the presence of anhydrous K2CO3. The polymers with inherent viscosities in the range of 0.20–0.71 dlg−1 were obtained in quantitative yields and had excellent thermal stability as shown by the temperature of 5% weight loss in nitrogen above 410°C. X-ray diffraction patterns confirmed the semicrystalline character of some of the polymers. The results also indicate that the reaction time was shortened remarkably and the reaction temperature could be controlled easily. POLYM. ENG. SCI., 2011. © 2010 Society of Plastics Engineers

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