Biodegradable ionic liquids: Part I. Concept, preliminary targets and evaluation
Year: 2004
Type: article
Abstract: The 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.
Source: Green Chemistry
DOI: 10.1039/b315270g
Language: English
Subfield: Physical and Theoretical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2165492327
