Title: | Quest for Green-Solvent Design: From Hydrophilic to Hydrophobic (Deep) Eutectic Solvents |
Author(s): | Florindo C; Branco LC; Marrucho IM; |
Address: | "Centro de Quimica Estrutural, Instituto Superior Tecnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001, Lisboa, Portugal. Instituto de Tecnologia Quimica e Biologica Antonio Xavier, Universidade Nova de Lisboa, Apartado 127, 2780-901, Oeiras, Portugal. REQUIMTE, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516, Caparica, Portugal" |
ISSN/ISBN: | 1864-564X (Electronic) 1864-5631 (Linking) |
Abstract: | "Deep eutectic solvents (DESs) consist of a mixture of two or more solid components, which gives rise to a lower melting point compared to the starting materials. Until recently only hydrophilic DESs were available, and despite their revolutionary role in the alternative-solvents field, important issues in chemistry, and chemical engineering (such as water-related problems and the replacement of toxic volatile organic compounds) could not be tackled. Hydrophobic (deep)-here in parenthesis due to the different depths of the eutectic melting points-eutectic solvents are a subclass of DESs where both components are hydrophobic. The low toxicity, high biodegradability, and straightforward preparation without further purification steps of naturally occurring low-cost compounds are among the key advantages. Although research on hydrophobic DESs is scarce (the first report was only published in 2015), some interesting features and applications have been reported and deserve to be evaluated and comparisons established. This Minireview is divided into two parts: The first part provides a brief general introduction to DESs and the second part discusses the nomenclature using solid-liquid phase diagram analysis, chemical stability, thermophysical properties comparison, and finally the most important emerging fields of application" |
Keywords: | deep eutectic solvents eutectic mixtures green chemistry hydrophobic (D)ES sustainability; |
Notes: | "PubMed-not-MEDLINEFlorindo, Catarina Branco, Luis C Marrucho, Isabel M eng SFRH/BD/102313/2014/Fundacao para a Ciencia e a Tecnologia/ IF/0041/2013/Fundacao para a Ciencia e a Tecnologia/ UID/QUI/00100/2013/Fundacao para a Ciencia e a Tecnologia/ UID/Multi/04551/2013/Fundacao para a Ciencia e a Tecnologia/ Review Germany 2019/02/28 ChemSusChem. 2019 Apr 23; 12(8):1549-1559. doi: 10.1002/cssc.201900147. Epub 2019 Apr 8" |