Fluorination effects on the thermodynamic, thermophysical and surface properties of ionic liquids

被引：32
作者：
Vieira, N. S. M. [1 ]
Luis, A. [2 ]
Reis, P. M. [1 ]
Carvalho, P. J. [2 ]
Lopes-da-Silva, J. A. [3 ]
Esperanca, J. M. S. S. [1 ]
Araujo, J. M. M. [1 ]
Rebelo, L. P. N. [1 ]
Freire, M. G. [2 ]
Pereiro, A. B. [1 ]
机构：
[1] Univ Nova Lisboa, Inst Tecnol Quim & Biol Antonio Xavier, P-2780157 Oeiras, Portugal
[2] Univ Aveiro, CICECO Aveiro Inst Mat, Dept Chem, P-3810193 Aveiro, Portugal
[3] Univ Aveiro, Dept Chem, QOPNA Unit, P-3810193 Aveiro, Portugal
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2016年 / 97卷
基金：
欧洲研究理事会;
关键词：
Fluorinated ionic liquids; Surface tension; Physical and thermal properties; Thermodynamic functions; Walden plot; PHYSICAL-PROPERTIES; ALKYL SUBSTITUENTS; REFRACTIVE-INDEX; CHAIN-LENGTH; TEMPERATURE; TENSION; ANION; CYTOTOXICITY; IMIDAZOLIUM; SOLUBILITY;
D O I：
10.1016/j.jct.2016.02.013
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper reports the thermal, thermodynamic, thermophysical and surface properties of eight ionic liquids with fluorinated alkyl side chain lengths equal or greater than four carbon atoms. Melting and decomposition temperatures were determined together with experimental densities, surface tensions, refractive indices, dynamic viscosities and ionic conductivities in a temperature interval ranging from (293.15 to 353.15) K. The surface properties of these fluorinated ionic liquids were discussed and several thermodynamic functions, as well as critical temperatures, were estimated. Coefficients of isobaric thermal expansion, molecular volumes and free volume effects were calculated from experimental values of density and refractive index and compared with previous data. Finally, Walden plots were used to evaluate the ionicity of the investigated ionic liquids. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：354 / 361
页数：8
相关论文
共 49 条
  • [1] Adamson A.W., 1967, Physical Chemistry of Surfaces
  • [2] Cation Alkyl Side Chain Length and Symmetry Effects on the Surface Tension of Ionic Liquids
    Almeida, Hugo F. D.
    Freire, Mara G.
    Fernandes, Ana M.
    Lopes-da-Silva, Jose A.
    Morgado, Pedro
    Shimizu, Karina
    Filipe, Eduardo J. M.
    Canongia Lopes, Jose N.
    Santos, Luis M. N. B. F.
    Coutinho, Joao A. P.
    [J]. LANGMUIR, 2014, 30 (22) : 6408 - 6418
  • [3] Surface tension and refractive index of pure and water-saturated tetradecyltrihexylphosphonium-based ionic liquids
    Almeida, Hugo F. D.
    Lopes-da-Silva, Jose A.
    Freire, Mara G.
    Coutinho, Joao A. P.
    [J]. JOURNAL OF CHEMICAL THERMODYNAMICS, 2013, 57 : 372 - 379
  • [4] Influence of the anion on the surface tension of 1-ethyl-3-methylimidazolium-based ionic liquids
    Almeida, Hugo F. D.
    Teles, Ana Rita R.
    Lopes-da-Silva, Jose A.
    Freire, Mara G.
    Coutinho, Joao A. P.
    [J]. JOURNAL OF CHEMICAL THERMODYNAMICS, 2012, 54 : 49 - 54
  • [5] Thermophysical Properties of Pure Ionic Liquids: Review of Present Situation
    Aparicio, Santiago
    Atilhan, Mert
    Karadas, Ferdi
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2010, 49 (20) : 9580 - 9595
  • [6] Cholinium-based ionic liquids with pharmaceutically active anions
    Araujo, Joao M. M.
    Florindo, Catarina
    Pereiro, Ana B.
    Vieira, Nicole S. M.
    Matias, Ana A.
    Duarte, Catarina M. M.
    Rebelo, Luis P. N.
    Marrucho, Isabel M.
    [J]. RSC ADVANCES, 2014, 4 (53): : 28126 - 28132
  • [7] Organic fluorine compounds: a great opportunity for enhanced materials properties
    Berger, Ricarda
    Resnati, Giuseppe
    Metrangolo, Pierangelo
    Weber, Edwin
    Hulliger, Juerg
    [J]. CHEMICAL SOCIETY REVIEWS, 2011, 40 (07) : 3496 - 3508
  • [8] Birdi K.S., 1997, HDB SURFACE COLLOID
  • [9] 1-Alkyl-3-methylimidazolium alkanesulfonate ionic liquids, [CnH2n+1mim][CkH2k+1SO3]: synthesis and physicochemical properties
    Blesic, Marijana
    Swadzba-Kwasny, Malgorzata
    Belhocine, Tayeb
    Gunaratne, H. Q. Nimal
    Canongia Lopes, Jose N.
    Gomes, Margarida F. Costa
    Padua, Agilio A. H.
    Seddon, Kenneth R.
    Rebelo, Luis Paulo N.
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2009, 11 (39) : 8939 - 8948
  • [10] Density, Thermal Expansion and Viscosity of Cholinium-Derived Ionic Liquids
    Costa, Anabela J. L.
    Soromenho, Mario R. C.
    Shimizu, Karina
    Marrucho, Isabel M.
    Esperanca, Jose M. S. S.
    Canongia Lopes, Jose N.
    Rebelo, Luis Paulo N.
    [J]. CHEMPHYSCHEM, 2012, 13 (07) : 1902 - 1909
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