Interfacial properties, densities, and contact angles of task specific ionic liquids

Gonçalo V. S. M. Carrera; Carlos A. M. Afonso; Luis C. Branco

doi:10.1021/je900502s

Interfacial properties, densities, and contact angles of task specific ionic liquids

Gonçalo V. S. M. Carrera, Carlos A. M. Afonso, Luis C. Branco

Research output: Contribution to journal › Conference article › peer-review

91 Citations (Scopus)

Abstract

Density, surface tension, interfacial tension with water, and contact angles on Teflon and glass surfaces of 21 ionic liquids based on functionalized imidazolium, ammonium, phosphonium, and guanidinium cations combined with several anions, such as chloride, tetrafluoroborate, bis(trifluoromethanesulfonyl)imide, dicyanamide, p-toluenesulfonate, and ethylsulfate, were completely measured. The structure-property relationship of the selected ionic liquids was considered in order to predict their potential applications. Particularly relevant were the lower surface tension values (at 293.15 K) observed for tetrahexyldimethylguanidinium dicyanamide, [(di-h) ₂dmg][DCA] (21.35 ± 0.03 mN•m^-1), and trioctylmethylammonium bis(trifluoromethanesulfonyl)imide, [Aliquat][NTf ₂] (22.77 ± 0.05 mN•m^-1), and the remarkably low contact angles on Teflon surfaces of [(di-h) ₂dmg][DCA] (39.66°) and trihexyltetradecylphosphonium p-toluenesulfonate, [P _6,6,6,14][p-TsO] (39.77°).

Original language	English
Pages (from-to)	609-615
Number of pages	7
Journal	Journal of Chemical and Engineering Data
Volume	55
Issue number	2
DOIs	https://doi.org/10.1021/je900502s
Publication status	Published - 1 Mar 2010
Event	Iberian Meeting on Ionic Liquids (IMIL) - Universidade de Aveiro, Aveiro, Portugal Duration: 15 Jun 2009 → 16 Jun 2009

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title = "Interfacial properties, densities, and contact angles of task specific ionic liquids",

abstract = "Density, surface tension, interfacial tension with water, and contact angles on Teflon and glass surfaces of 21 ionic liquids based on functionalized imidazolium, ammonium, phosphonium, and guanidinium cations combined with several anions, such as chloride, tetrafluoroborate, bis(trifluoromethanesulfonyl)imide, dicyanamide, p-toluenesulfonate, and ethylsulfate, were completely measured. The structure-property relationship of the selected ionic liquids was considered in order to predict their potential applications. Particularly relevant were the lower surface tension values (at 293.15 K) observed for tetrahexyldimethylguanidinium dicyanamide, [(di-h) 2dmg][DCA] (21.35 ± 0.03 mN•m-1), and trioctylmethylammonium bis(trifluoromethanesulfonyl)imide, [Aliquat][NTf 2] (22.77 ± 0.05 mN•m-1), and the remarkably low contact angles on Teflon surfaces of [(di-h) 2dmg][DCA] (39.66°) and trihexyltetradecylphosphonium p-toluenesulfonate, [P 6,6,6,14][p-TsO] (39.77°).",

author = "Carrera, {Gon{\c c}alo V. S. M.} and Afonso, {Carlos A. M.} and Branco, {Luis C.}",

year = "2010",

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T1 - Interfacial properties, densities, and contact angles of task specific ionic liquids

AU - Carrera, Gonçalo V. S. M.

AU - Afonso, Carlos A. M.

AU - Branco, Luis C.

PY - 2010/3/1

Y1 - 2010/3/1

N2 - Density, surface tension, interfacial tension with water, and contact angles on Teflon and glass surfaces of 21 ionic liquids based on functionalized imidazolium, ammonium, phosphonium, and guanidinium cations combined with several anions, such as chloride, tetrafluoroborate, bis(trifluoromethanesulfonyl)imide, dicyanamide, p-toluenesulfonate, and ethylsulfate, were completely measured. The structure-property relationship of the selected ionic liquids was considered in order to predict their potential applications. Particularly relevant were the lower surface tension values (at 293.15 K) observed for tetrahexyldimethylguanidinium dicyanamide, [(di-h) 2dmg][DCA] (21.35 ± 0.03 mN•m-1), and trioctylmethylammonium bis(trifluoromethanesulfonyl)imide, [Aliquat][NTf 2] (22.77 ± 0.05 mN•m-1), and the remarkably low contact angles on Teflon surfaces of [(di-h) 2dmg][DCA] (39.66°) and trihexyltetradecylphosphonium p-toluenesulfonate, [P 6,6,6,14][p-TsO] (39.77°).

AB - Density, surface tension, interfacial tension with water, and contact angles on Teflon and glass surfaces of 21 ionic liquids based on functionalized imidazolium, ammonium, phosphonium, and guanidinium cations combined with several anions, such as chloride, tetrafluoroborate, bis(trifluoromethanesulfonyl)imide, dicyanamide, p-toluenesulfonate, and ethylsulfate, were completely measured. The structure-property relationship of the selected ionic liquids was considered in order to predict their potential applications. Particularly relevant were the lower surface tension values (at 293.15 K) observed for tetrahexyldimethylguanidinium dicyanamide, [(di-h) 2dmg][DCA] (21.35 ± 0.03 mN•m-1), and trioctylmethylammonium bis(trifluoromethanesulfonyl)imide, [Aliquat][NTf 2] (22.77 ± 0.05 mN•m-1), and the remarkably low contact angles on Teflon surfaces of [(di-h) 2dmg][DCA] (39.66°) and trihexyltetradecylphosphonium p-toluenesulfonate, [P 6,6,6,14][p-TsO] (39.77°).

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SN - 0021-9568

VL - 55

SP - 609

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T2 - Iberian Meeting on Ionic Liquids (IMIL)

Y2 - 15 June 2009 through 16 June 2009

ER -

Interfacial properties, densities, and contact angles of task specific ionic liquids

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