Ion-conductive polymer membranes containing 1-butyl-3-methylimidazolium trifluoromethanesulfonate and 1-ethylimidazolium trifluoromethanesulfonate
| Autor: | Petr Mazúr, Karel Bouzek, Jakub Mališ, Antonín Sikora, Martina Plíšková, Martin Paidar, Jan Schauer |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Conductive polymer
Materials science Filtration and Separation Biochemistry chemistry.chemical_compound Differential scanning calorimetry Membrane chemistry Nafion Ionic liquid Polymer chemistry Fluoroelastomer General Materials Science Polysulfone Physical and Theoretical Chemistry Trifluoromethanesulfonate |
| Zdroj: | Journal of Membrane Science. 367:332-339 |
| ISSN: | 0376-7388 |
| DOI: | 10.1016/j.memsci.2010.11.018 |
| Popis: | Membranes were prepared by casting a solution of a polymer and ionic liquid 1-butyl-3-methylimidazolium trifluoromethanesulfonate [BMIM][TfO] or 1-ethylimidazolium trifluoromethanesulfonate [EIM][TfO] typical representatives of aprotic and protic ionic liquid and evaporating the solvent. The following polymers were used: Udel-type polysulfone, polybenzimidazole derivative containing benzofuranone moieties (PBI-O-Ph), poly(vinylidene fluoride -co -hexafluoropropene) (fluoroelastomer) and Nafion. Polymer–ionic liquid compatibility was investigated by swelling, scanning electron microscopy and differential scanning calorimetry. Membranes conductivities in anhydrous atmosphere depended on temperature, ionic liquid concentration in the membrane, and on the type of matrix polymer. No conductivity could be detected with polysulfone-based membranes due to the incompatibility of polysulfone and the two ionic liquids, low conductivities were found with PBI-O-Ph based membranes, the conductivities of the fully compatible systems based on fluoroelastomer or Nafion matrixes amounted to 40% of that of neat ionic liquids. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect