Electrochemical impedance spectroscopy-a simple method for the characterization of polymer inclusion membranes containing aliquat 336

M O'Rourke; N Duffy; Roland De Marco; I Potter

doi:10.3390/membranes1020132

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Electrochemical impedance spectroscopy-a simple method for the characterization of polymer inclusion membranes containing aliquat 336

Journal article

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Electrochemical impedance spectroscopy-a simple method for the characterization of polymer inclusion membranes containing aliquat 336

M O'Rourke, N Duffy, Roland De Marco and I Potter

Membranes, Vol.1(2), pp.132-148

2011

DOI: https://doi.org/10.3390/membranes1020132

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Abstract

aliquat 336

dielectric constant

electrochemical impedance spectroscopy

fixed site jumping

polymer inclusion membranes

Electrochemical impedance spectroscopy (EIS) has been used to estimate the non-frequency dependent (static) dielectric constants of base polymers such as poly(vinyl chloride) (PVC), cellulose triacetate (CTA) and polystyrene (PS). Polymer inclusion membranes (PIMs) containing different amounts of PVC or CTA, along with the room temperature ionic liquid Aliquat 336 and plasticizers such as trisbutoxyethyl phosphate (TBEP), dioctyl sebecate (DOS) and 2-nitrophenyloctyl ether (NPOE) have been investigated. In this study, the complex and abstract method of EIS has been applied in a simple and easy to use way, so as to make the method accessible to membrane scientists and engineers who may not possess the detailed knowledge of electrochemistry and interfacial science needed for a rigorous interpretation of EIS results. The EIS data reported herein are internally consistent with a percolation threshold in the dielectric constant at high concentrations of Aliquat 336, which illustrates the suitability of the EIS technique since membrane percolation with ion exchangers is a well-known phenomenon. © 2011 by the authors; licensee MDPI, Basel, Switzerland.

Details

Title: Electrochemical impedance spectroscopy-a simple method for the characterization of polymer inclusion membranes containing aliquat 336
Authors: M O'Rourke (Author) - La Trobe University
N Duffy (Author) - CSIRO
Roland De Marco (Author) - Curtin University of Technology
I Potter (Author) - La Trobe University
Publication details: Membranes, Vol.1(2), pp.132-148
Publisher: MDPI AG
Date published: 2011
DOI: 10.3390/membranes1020132
ISSN: 2077-0375
Copyright note: Copyright © 2011 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). Reproduced in accordance with this policy.
Organisation Unit: University of the Sunshine Coast, Queensland; Office of the Deputy Vice-Chancellor (Research and Innovation)
Language: English
Record Identifier: 99449531602621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Biochemistry & Molecular Biology; Chemistry, Physical; Engineering, Chemical; Materials Science, Multidisciplinary; Polymer Science

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