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Issue 10, 2010
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Further studies on the biodegradation of ionic liquids

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Abstract

A range of ionic liquids (ILs) containing a pyridinium cation were synthesised and their biodegradability was evaluated using the CO2 headspace test (ISO 14593). ILs bearing a 1-(2-hydroxyethyl) side chain were prepared from either pyridine or nicotinic acid derivatives. These ILs showed high levels of biodegradation under aerobic conditions and can be classified as ‘readily biodegradable’. In contrast, pyridinium ILs with methyl or ethyl ether side chains showed significantly lower levels of biodegradability in the same test. Biodegradation studies on a range of novel ILs with acetal and carbamate functionalities, as well as thiazolium-based salts, also showed low levels of mineralization.

Graphical abstract: Further studies on the biodegradation of ionic liquids

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Publication details

The article was received on 05 May 2010, accepted on 11 Aug 2010 and first published on 07 Sep 2010


Article type: Paper
DOI: 10.1039/C0GC00082E
Green Chem., 2010,12, 1783-1789

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    Further studies on the biodegradation of ionic liquids

    L. Ford, J. R. Harjani, F. Atefi, M. T. Garcia, R. D. Singer and P. J. Scammells, Green Chem., 2010, 12, 1783
    DOI: 10.1039/C0GC00082E

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