RT Journal Article
T1 Ionic Liquids derived from proline: application as surfactants
A1 Fernández-Stefanuto, Verónica
A1 Corchero Morais, Raquel
A1 Rodríguez Escontrela, Iria
A1 Soto Campos, Ana María
A1 Tojo Sierra, Rafael
K1 Amino acids
K1 Enhanced oil recovery
K1 Ionic liquids
K1 Prolinium
K1 Surfactants
AB Ionic liquids derived from prolinium esters, previously described as fully green and stable, were found to decompose in the presence of water by ester hydrolysis. To avoid this problem, a new family of these biodegradable salts incorporating an alcohol instead of the ester group is proposed. From this family, two novel ionic liquids that incorporate the prolinolium cation [HOPro] and the [DS] or [DBS] anion were selected (DS=dodecylsulfate; DBS=dodecylbenzenesulfonate). Both salts are liquid at room temperature, a property not usually found in ionic surfactants, and are also chemically and thermally stable. Moreover, they are more effective in reducing the surface tension of water than the corresponding traditional surfactants in the form of sodium salts, being useful for applications related to their aggregation capacity. They were tested for surfactant enhanced oil recovery and an optimal formulation for reservoirs at high salinity and temperature, able to produce ultra‐low interfacial tension, was found with [HOPro][DBS]
PB Wiley
YR 2018
FD 2018
LK http://hdl.handle.net/10347/23327
UL http://hdl.handle.net/10347/23327
LA eng
NO V. Fernández-Stefanuto, R. Corchero, I. Rodríguez-Escontrela, A. Soto, E. Tojo, ChemPhysChem 2018, 19, 2885
NO This is the peer reviewed version of the following article: V. Fernández-Stefanuto, R. Corchero, I. Rodríguez-Escontrela, A. Soto, E. Tojo, ChemPhysChem 2018, 19, 2885, which has been published in final form at https://doi.org/10.1002/cphc.201800735. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions
NO A.S. acknowledges the Ministry of Economy and Competitiveness (Spain) for financial support throughout project CTQ2015‐68496‐P (including European Regional Development Fund advanced funding). E.T. thanks the Xunta de Galicia (ED431D 2017/06) for their financial support
DS Minerva
RD 22 abr 2026