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Author(s): Eugénia A. Macedo
Pedro Verdía
Marta Hernaíz
Emilio J. González
Josefa Salgado
Emilia Tojo
Title: Effect of the number, position and length of alkyl chains on the physical and thermal properties of poly-substituted pyridinium ionic liquids
Issue Date: 2013
Abstract: The knowledge of the physical properties of ionic liquids is of high importance in order to evaluate theirpotential applicability for a given purpose. In the last few years, ionic liquids have been proposed aspromising solvents for extractive desulfurization of fuels. Among them, recent studies have shown thationic liquids derived from pyridinium affords excellent S-compounds removal capacity. In this work,the thermal analysis of five ionic liquids derived from pyridinium cation polysubstituted with differentalkyl chains was carried out by Differencial Scanning Calorimetry (DSC) and Thermal GravimetricAnalysis (TGA). Furthermore, the density, speed of sound, refractive index and dynamic viscosity for allthe pure ionic liquids were also measured from T = (298.15 to 343.15) K. The effect of the number ofcation alkyl chains, their length, and their position on the pyridinium ring, on the ionic liquid physicalproperties is also analyzed and discussed.
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
Source: The 17th International Electronic Conference on Synthetic Organic Chemistry
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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