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Título

Biodegradable ionic liquids: Part I. Concept, preliminary targets and evaluation

AutorGathergood, Nicholas; García Ramón, María Teresa ; Scammells, Peter J.
Palabras claveIonic liquids
Biodegradability
Toxicity
3-methyl-1-(alkyloxycarbonylmethyl)imidazolium bromide
Surfactants
Fecha de publicación4-feb-2004
EditorRoyal Society of Chemistry (Great Britain)
CitaciónGreen Chemistry 6(3): 166-175 (2004)
ResumenThe design, preparation and evaluation of biodegradable ionic liquids containing ester or amide groups in the alkyl side chain are presented. Factors improving the biodegradation of surfactants were successfully applied to ionic liquids. These novel ionic liquids can be prepared from readily available starting materials in high yield. The introduction of a group susceptible to enzymatic hydrolysis greatly improves the biodegradation (OECD 301D Closed Bottle Test) compared with the commonly used dialkylimidazolium ionic liquids, bmimBF4 and bmimPF6. For the 3-methyl-1-(alkyloxycarbonylmethyl)imidazolium bromide series, the greatest biodegradation was observed when alkyl = butyl, pentyl, hexyl and octyl. The corresponding amide analogs proved to be poorly biodegradable.
Descripción10 pages, 3 figures, 1 scheme.-- Printed version published Mar 2004.
Versión del editorhttp://dx.doi.org/10.1039/b315270g
URIhttp://hdl.handle.net/10261/18375
DOI10.1039/b315270g
ISSN1463-9262
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