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Issue 5, 2013
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Production of polyetheretherketone in ionic liquid media

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Polyetheretherketones were successfully synthesised in an ionic liquid, namely 1-butyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}amide, by polycondensation reactions of hydroquinone with 4,4′-dihalobenzophenones in the presence of potassium carbonate at elevated temperatures (up to 320 °C). The materials thus produced were similar to polymers prepared in the solvent usually employed in commercial processes, i.e. diphenyl sulfone, as suggested by spectroscopic techniques and X-ray crystallography. By replacing volatile diphenyl sulfone with the effectively involatile ionic liquid, the separation efficiency was significantly improved but the molecular weights were lower.

Graphical abstract: Production of polyetheretherketone in ionic liquid media

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Publication details

The article was received on 06 Nov 2012, accepted on 07 Mar 2013 and first published on 08 Mar 2013

Article type: Paper
DOI: 10.1039/C3GC36754A
Green Chem., 2013,15, 1166-1172

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    Production of polyetheretherketone in ionic liquid media

    H. Q. N. Gunaratne, C. R. Langrick, A. V. Puga, K. R. Seddon and K. Whiston, Green Chem., 2013, 15, 1166
    DOI: 10.1039/C3GC36754A

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