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.
Original language | English |
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Pages (from-to) | 1166-1172 |
Number of pages | 7 |
Journal | Green Chemistry |
Volume | 15 |
Issue number | 5 |
DOIs | |
Publication status | Published - May 2013 |
Externally published | Yes |
Bibliographical note
Copyright:Copyright 2020 Elsevier B.V., All rights reserved.
ASJC Scopus subject areas
- Environmental Chemistry
- Pollution