Issue 5, 2013
From the journal:

Green Chemistry

Production of polyetheretherketone in ionic liquid media

H. Q. Nimal Gunaratne,a   C. Richard Langrick,b   Alberto V. Puga,†a   Kenneth R. Seddonb  and  Keith Whistonb  

a The QUILL Research Centre, School of Chemistry and Chemical Engineering, the Queen's University of Belfast, Stranmillis Road, Belfast BT9 5AG, United Kingdom
E-mail: quill@qub.ac.uk

b INVISTA Intermediates, PO Box 401, Wilton, Redcar TS10 4XY, United Kingdom
E-mail: keith.whiston-1@invista.com

Abstract

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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Article information

DOI
https://doi.org/10.1039/C3GC36754A
Article type
Paper
Submitted
06 Nov 2012
Accepted
07 Mar 2013
First published
08 Mar 2013

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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