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Updated: May 4, 2026

Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
Published on: August 10, 2016
"Washing-out" ionic liquids from polyethylene glycol to form aqueous biphasic systems
Luciana I N Tomé1, Jorge F B Pereira, Robin D Rogers
1Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal. jcoutinho@ua.pt.
Abstract:
The molecular-level mechanisms behind the formation of aqueous biphasic systems (ABS) composed of ionic liquids (ILs) and polymers are hitherto not completely understood. For the first time, it is herein shown that polymer-IL-based ABS are a result of a "washing-out" phenomenon, and not of a salting-out effect of the IL over the polymer as assumed in the past few years. Novel evidence is herein provided by experimental results combined with molecular dynamics (MD) simulations and density functional theory (DFT) calculations.
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