Artículos de revistas
Determination, characterization and modeling of aqueous biphasic systems composed of propylammonium-based ionic liquids and phosphate salts
Fecha
2020-09-01Registro en:
Chemical Physics Letters, v. 754.
0009-2614
10.1016/j.cplett.2020.137623
2-s2.0-85085338868
Autor
Universidade Estadual Paulista (Unesp)
University of Aveiro
Universidade Federal do Paraná (UFPR)
Jalan Mulyorejo Kampus C
Rua Sílvio Lima
Institución
Resumen
Ionic liquids (ILs)-based aqueous biphasic systems (ABS) are efficient platforms for the extraction and purification of biomolecules. To find more biocompatible ABS, propylammonium-based ILs, phosphate salts and water were mixed at three temperatures, evaluating the influence of IL and temperature on the liquid-liquid equilibria (LLE). The biphasic region increases with the increase of IL’ anionic/cationic chain and decreases with the increase of temperature. There is good agreement between the IL’ ability to form ABS and the hydrogen bonding interaction predicted by COSMO-RS. The subtle balance of hydrogen bonding between salt anion-water and IL anion-water governs the phase separation.