Isomer effect of propanol on liquid-liquid equilibrium in hydrophobic room-temperature ionic liquids

被引：18
作者：
Ozawa, Shinichiro [1 ]
Kishimura, Hiroaki [1 ]
Kitahira, Shota [1 ]
Tamatani, Kentaro [1 ]
Hirayama, Kentaro [1 ]
Abe, Hiroshi [1 ]
Yoshimura, Yukihiro [2 ]
机构：
[1] Natl Def Acad, Dept Mat Sci & Engn, Yokosuka, Kanagawa 2398686, Japan
[2] Natl Def Acad, Dept Appl Chem, Yokosuka, Kanagawa 2398686, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2014年 / 613卷
关键词：
PHASE-BEHAVIOR; BINARY-MIXTURES; CO2; IMIDE; SOLUBILITY; REDUCTION; PRESSURE; ALCOHOLS; DENSITY; SYSTEMS;
D O I：
10.1016/j.cplett.2014.09.003
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 cloud-point temperature determined the liquid-liquid phase equilibrium (LLE) of binary systems comprising hydrophobic room-temperature ionic liquids (RTILs) and propanol. The RTILs were 1-alkyl3-methylimidazolium bis(trifluoromethanesulfonyl)imide, [C(x)mim][TFSI] (2 <= x <= 10). Upper critical solution temperatures in LLE are inversely proportional to the C(x)mim(+) cation alkyl chain length, x. The propanol isomer effect indicates the critical alkyl chain length (X-critical = 6-7). UNIQUAC model determined the interaction parameters (with crossing points at x= 6). In pure RTILs, conformation stability of TFSI- by Raman spectroscopy changed between x= 6 and 7, corresponding to the simulation-determined 90 degrees-torsion angle at x= 6. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：122 / 126
页数：5
相关论文
共 40 条
  • [1] Desorption process in room temperature ionic liquid based-mixtures under vacuum
    Abe, Hiroshi
    Mori, Tomohiro
    Abematsu, Ryo
    Yoshimura, Yukihiro
    Hatano, Naohiro
    Imai, Yusuke
    Kishimura, Hiroaki
    [J]. JOURNAL OF MOLECULAR LIQUIDS, 2012, 167 : 40 - 46
  • [2] Understanding the High Solubility of CO2 in an Ionic Liquid with the Tetracyanoborate Anion
    Babarao, Ravichandar
    Dai, Sheng
    Jiang, De-en
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2011, 115 (32) : 9789 - 9794
  • [3] DENSITY-FUNCTIONAL THERMOCHEMISTRY .3. THE ROLE OF EXACT EXCHANGE
    BECKE, AD
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (07) : 5648 - 5652
  • [4] Green processing using ionic liquids and CO2
    Blanchard, LA
    Hancu, D
    Beckman, EJ
    Brennecke, JF
    [J]. NATURE, 1999, 399 (6731) : 28 - 29
  • [5] Ionic Liquids for CO2 Capture and Emission Reduction
    Brennecke, Joan E.
    Gurkan, Burcu E.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (24): : 3459 - 3464
  • [6] High carbon dioxide solubilities in trihexyltetradecylphosphonium-based ionic liquids
    Carvalho, Pedro J.
    Alvarez, Victor H.
    Marrucho, Isabel M.
    Aznar, Martin
    Coutinho, Joao A. P.
    [J]. JOURNAL OF SUPERCRITICAL FLUIDS, 2010, 52 (03) : 258 - 265
  • [7] In situ crystallization of ionic liquids with melting points below-25 °C
    Choudhury, Angshuman R.
    Winterton, Neil
    Steiner, Alexander
    Cooper, Andrew I.
    Johnson, Kathleen A.
    [J]. CRYSTENGCOMM, 2006, 8 (10): : 742 - 745
  • [8] Solubility of phosphonium ionic liquid in alcohols, benzene, and alkylbenzenes
    Domanska, Urszula
    Casas, Lidia M.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (16) : 4109 - 4115
  • [9] Functional Role of Pyridinium during Aqueous Electrochemical Reduction of CO2 on Pt(111)
    Ertem, Mehmed Z.
    Konezny, Steven J.
    Araujo, C. Moyses
    Batista, Victor S.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2013, 4 (05): : 745 - 748
  • [10] Solubility of fluorinated compounds in a range of ionic liquids. Cloud-point temperature dependence on composition and pressure
    Ferreira, Rui
    Blesic, Marijana
    Trindade, Joana
    Marrucho, Isabel
    Lopes, Jose N. Canongia
    Rebelo, Luis Paulo N.
    [J]. GREEN CHEMISTRY, 2008, 10 (09) : 918 - 928
1234