Electrochemical Impedance Spectroscopy—A Simple Method for the Characterization of Polymer Inclusion Membranes Containing Aliquat 336
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 PV...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2011-06-01
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| Series: | Membranes |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2077-0375/1/2/132/ |
| _version_ | 1797722450546393088 |
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| author | Michelle O’Rourke Noel Duffy Roland De Marco Ian Potter |
| author_facet | Michelle O’Rourke Noel Duffy Roland De Marco Ian Potter |
| author_sort | Michelle O’Rourke |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-12T09:47:32Z |
| format | Article |
| id | doaj.art-ce38c2c8c4bf45e894eeb64ecf4c25fe |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-12T09:47:32Z |
| publishDate | 2011-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-ce38c2c8c4bf45e894eeb64ecf4c25fe2023-09-02T12:47:24ZengMDPI AGMembranes2077-03752011-06-011213214810.3390/membranes1020132Electrochemical Impedance Spectroscopy—A Simple Method for the Characterization of Polymer Inclusion Membranes Containing Aliquat 336Michelle O’RourkeNoel DuffyRoland De MarcoIan PotterElectrochemical 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.http://www.mdpi.com/2077-0375/1/2/132/dielectric constantpolymer inclusion membranesAliquat 336electrochemical impedance spectroscopyfixed site jumping |
| spellingShingle | Michelle O’Rourke Noel Duffy Roland De Marco Ian Potter Electrochemical Impedance Spectroscopy—A Simple Method for the Characterization of Polymer Inclusion Membranes Containing Aliquat 336 Membranes dielectric constant polymer inclusion membranes Aliquat 336 electrochemical impedance spectroscopy fixed site jumping |
| title | Electrochemical Impedance Spectroscopy—A Simple Method for the Characterization of Polymer Inclusion Membranes Containing Aliquat 336 |
| title_full | Electrochemical Impedance Spectroscopy—A Simple Method for the Characterization of Polymer Inclusion Membranes Containing Aliquat 336 |
| title_fullStr | Electrochemical Impedance Spectroscopy—A Simple Method for the Characterization of Polymer Inclusion Membranes Containing Aliquat 336 |
| title_full_unstemmed | Electrochemical Impedance Spectroscopy—A Simple Method for the Characterization of Polymer Inclusion Membranes Containing Aliquat 336 |
| title_short | Electrochemical Impedance Spectroscopy—A Simple Method for the Characterization of Polymer Inclusion Membranes Containing Aliquat 336 |
| title_sort | electrochemical impedance spectroscopy a simple method for the characterization of polymer inclusion membranes containing aliquat 336 |
| topic | dielectric constant polymer inclusion membranes Aliquat 336 electrochemical impedance spectroscopy fixed site jumping |
| url | http://www.mdpi.com/2077-0375/1/2/132/ |
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