RT Journal Article T1 Design and Characterization of Naphthalene Ionic Liquids A1 Fernández-Stefanuto, Verónica A1 Somoza Cerviño, Alba A1 Corchero Morais, Raquel A1 Tojo, Emilia A1 Soto Campos, Ana María K1 Synthesis K1 Characterization K1 Surfactant K1 Ionic liquid K1 Enhanced oil recovery AB Surfactants have a great number of applications. Among these chemicals, petroleum sulfonates have been widely used due to their effectiveness in reducing interfacial tension. This is the case of sodium octylnaphthalene sulfonate which is a solid with a very low solubility in water. To overcome these drawbacks, this work aimed to synthesize new surface active ionic liquids based on a naphthalene sulfonate anion and traditional cations of these salts (imidazolium, pyrrolidinium, and pyridinium). The new chemicals showed high thermal stability, ionic liquid nature, and a stronger surfactant character than the original naphthalene. Moreover, they were found to be water soluble which greatly facilitates their application in the form of aqueous formulations. 1-Hexyl-3-methylimidazolium 4-(n-octyl)naphthalene-1-sulfonate showed the best capacity to reduce water-air and water-oil interfacial tension PB Frontiers YR 2020 FD 2020 LK http://hdl.handle.net/10347/23313 UL http://hdl.handle.net/10347/23313 LA eng NO Fernández-Stefanuto V, Somoza A, Corchero R, Tojo E and Soto A (2020) Design and Characterization of Naphthalene Ionic Liquids. Front. Chem. 8:208. doi: 10.3389/fchem.2020.00208 NO The authors acknowledge the Spanish Ministry of Science and Innovation, State Research Agency and European Regional Development Fund for financial support throughout project PGC2018-097342-B-I00, the Xunta de Galicia through the project EDA431D 2017/06 DS Minerva RD 29 abr 2026