"Washing-out" ionic liquids from polyethylene glycol to form aqueous biphasic systems

被引:0
作者
Tome, Luciana I. N. [1 ]
Pereira, Jorge F. B. [1 ]
Rogers, Robin D. [2 ,3 ]
Freire, Mara G. [1 ]
Gomes, Jose R. B. [1 ]
Coutinho, Joao A. P. [1 ]
机构
[1] Univ Aveiro, CICECO, Dept Quim, P-3810193 Aveiro, Portugal
[2] Univ Alabama, Ctr Green Mfg, Tuscaloosa, AL 35487 USA
[3] Univ Alabama, Dept Chem, Tuscaloosa, AL 35487 USA
关键词
HOFMEISTER SERIES; 2-PHASE SYSTEMS; EXTRACTION; POLYMERS; SALTS; BOOST;
D O I
10.1039/c3cp54047b
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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.
引用
收藏
页码:2271 / 2274
页数:4
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