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Green Chem., 2009, 11, 821 - 829, DOI: 10.1039/b900787c

Further investigation of the biodegradability of imidazolium ionic liquids

Jitendra R. Harjani, Jeff Farrell, M. Teresa Garcia, Robert D. Singer and Peter J. Scammells

In continuation of our earlier investigations, this report presents a rationale behind the design of a series of imidazolium based ionic liquids and their biodegradation using the CO2 headspace test (ISO 14593 method, OECD 310). The effect on biodegradability of these salts through variation of the N-substituted side chains of imidazolium ions was examined further through incorporation of various functional groups and increased alkyl chain lengths. A series of anions containing moieties known to be biodegradable were also incorporated into a number of imidazolium based salts and examined in a similar fashion.

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