Effect of Alkyl Chains of Cation and Anion on the Thermophysical Properties of Propanenitrile imidazolium-Based Ionic Liquids
dioctylsulfosuccinate [C2CN Cnim]DOSS , dodecylsulfate [C2CN Cnim]DDS, benzene sulfonic acid [C2CN Cnim]SBA, benzene sulfonate [C2CN Cnim]BS and trifluoromethanesulfonate [C2CN Cnim]TFMS have been prepared. The present ionic liquids (ILs) are characterised using NMR, FTIR and elemental analysis a...
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my.utp.eprints.78422017-01-19T08:22:43Z Effect of Alkyl Chains of Cation and Anion on the Thermophysical Properties of Propanenitrile imidazolium-Based Ionic Liquids Wilfred, Cecilia Ziyada, Abu Bakr Man, Zakaria QD Chemistry dioctylsulfosuccinate [C2CN Cnim]DOSS , dodecylsulfate [C2CN Cnim]DDS, benzene sulfonic acid [C2CN Cnim]SBA, benzene sulfonate [C2CN Cnim]BS and trifluoromethanesulfonate [C2CN Cnim]TFMS have been prepared. The present ionic liquids (ILs) are characterised using NMR, FTIR and elemental analysis and their physical properties such as density, viscosity and refractive index have been performed at a broad range of temperature (293.15 to 353.15) K and at atmospheric pressure while their thermal stability were measured at heating rate 5 °C/min. The present ILs show lower densities and higher viscosities compared to those of analogous nitrile-functionalized ILs with different anions. The differences in these two properties are due to the presence of large anions (low ion mobility), long alkyl chain of the cations (Van der Waals interactions) and hydrogen bonding of the functional groups. The refractive index values of the present ILs are found to increase after the incorporation of nitrile group and are in good agreement with that reported for other imidazolium-based nitrile functionalized ILs The results show that thermal stability of the ILs with DOSS, DDS, SBA, BS and TFMS anions were high in comparison with the corresponding ILs with bromide anion. The coefficients of thermal expansion, lattice energy and molar refraction were estimated from the experimental values of density and refractive index. These ILs show a weak temperature dependency on the thermal expansion coefficient and low lattice energy. 2011-06 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/7842/1/COIL-Abstract.pdf Wilfred, Cecilia and Ziyada, Abu Bakr and Man, Zakaria (2011) Effect of Alkyl Chains of Cation and Anion on the Thermophysical Properties of Propanenitrile imidazolium-Based Ionic Liquids. In: Conference of Ionic Liquids, June 2011, USA. http://eprints.utp.edu.my/7842/ |
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QD Chemistry Wilfred, Cecilia Ziyada, Abu Bakr Man, Zakaria Effect of Alkyl Chains of Cation and Anion on the Thermophysical Properties of Propanenitrile imidazolium-Based Ionic Liquids |
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dioctylsulfosuccinate [C2CN Cnim]DOSS , dodecylsulfate [C2CN Cnim]DDS, benzene sulfonic acid
[C2CN Cnim]SBA, benzene sulfonate [C2CN Cnim]BS and trifluoromethanesulfonate [C2CN
Cnim]TFMS have been prepared. The present ionic liquids (ILs) are characterised using NMR,
FTIR and elemental analysis and their physical properties such as density, viscosity and refractive
index have been performed at a broad range of temperature (293.15 to 353.15) K and at atmospheric
pressure while their thermal stability were measured at heating rate 5 °C/min. The present ILs show
lower densities and higher viscosities compared to those of analogous nitrile-functionalized ILs
with different anions. The differences in these two properties are due to the presence of large anions
(low ion mobility), long alkyl chain of the cations (Van der Waals interactions) and hydrogen
bonding of the functional groups. The refractive index values of the present ILs are found to
increase after the incorporation of nitrile group and are in good agreement with that reported for
other imidazolium-based nitrile functionalized ILs The results show that thermal stability of the ILs
with DOSS, DDS, SBA, BS and TFMS anions were high in comparison with the corresponding ILs
with bromide anion. The coefficients of thermal expansion, lattice energy and molar refraction were
estimated from the experimental values of density and refractive index. These ILs show a weak
temperature dependency on the thermal expansion coefficient and low lattice energy. |
format |
Conference or Workshop Item |
author |
Wilfred, Cecilia Ziyada, Abu Bakr Man, Zakaria |
author_facet |
Wilfred, Cecilia Ziyada, Abu Bakr Man, Zakaria |
author_sort |
Wilfred, Cecilia |
title |
Effect of Alkyl Chains of Cation and Anion on the Thermophysical
Properties of Propanenitrile imidazolium-Based Ionic Liquids |
title_short |
Effect of Alkyl Chains of Cation and Anion on the Thermophysical
Properties of Propanenitrile imidazolium-Based Ionic Liquids |
title_full |
Effect of Alkyl Chains of Cation and Anion on the Thermophysical
Properties of Propanenitrile imidazolium-Based Ionic Liquids |
title_fullStr |
Effect of Alkyl Chains of Cation and Anion on the Thermophysical
Properties of Propanenitrile imidazolium-Based Ionic Liquids |
title_full_unstemmed |
Effect of Alkyl Chains of Cation and Anion on the Thermophysical
Properties of Propanenitrile imidazolium-Based Ionic Liquids |
title_sort |
effect of alkyl chains of cation and anion on the thermophysical
properties of propanenitrile imidazolium-based ionic liquids |
publishDate |
2011 |
url |
http://eprints.utp.edu.my/7842/1/COIL-Abstract.pdf http://eprints.utp.edu.my/7842/ |
_version_ |
1738655607708188672 |
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13.19449 |