Dielectric characterization of newtask ionic liquids with carboxyl groups by means of impedance spectroscopy from 10mHz to 10MHz

Author(s)

Cassol, T. M. ; Duarte, A. R. ; Ribas, C. S. ; Fernandes, P. R. G.

• Document type: Journal article
• Source: JOURNAL OF MOLECULAR LIQUIDS; v. 332, p. 7-pg., 2021-03-16.

Abstract

In this work, Broadband Dielectric Spectroscopy (BDS) techniqueis applied to investigate ((2-(3-methylimidazolyl-1-yl)-ethoxy)-carboyl)-benzoic-phthalic acid bromide (MC1) and 2-(3-methylimidazolyl-1-yl)-ethoxy-4-oxobutanoic acid bromide (MC2) ionic liquids. An impedance analyzer is used with frequencies ranging from 100mHz to 10MHz. The real and imaginary parts of the complexpermittivity, epsilon*(omega), and of the complex conductivity, sigma*(omega), of pure ionic liquids MC1 and MC2 and also aqueous solutions at 10% v/v, 50% v/v and 70% v/v as a function of temperature are discussed. (c) 2021 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 14/50983-3 - INCT 2014: complex fluids
• Grantee: Antonio Martins Figueiredo Neto
• Support Opportunities: Research Projects - Thematic Grants