Anion conducting poly(dialkyl benzimidazolium) salts
- 23 May 2011
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Polymer Chemistry
- Vol. 2 (8), 1641-1643
- https://doi.org/10.1039/c1py00142f
Abstract
Derivatization of poly(benzimidazole) (PBI) with methyl groups generates poly(dimethyl benzimidazolium) (PDMI), an anion exchange material. By using a simple ion exchange process, it is possible to produce PDMI salts with a variety of counter-ions. Anionic conductivity (2.7 ± 0.33 to 8.5 ± 0.5 × 10−3 S cm−1) for the PDMI membranes was found to be surprisingly high even though the membranes generally exhibit very low water uptakes. To the best of our knowledge, this represents the first report on the anionic conductivity of poly(dialkyl benzimidazolium) salts, despite the large body of literature on PBI and on molecular imidazolium salts.Keywords
This publication has 30 references indexed in Scilit:
- Synthesis and properties of anion conductive ionomers containing fluorenyl groups for alkaline fuel cell applicationsPolymer Chemistry, 2010
- Tunable High Performance Cross-Linked Alkaline Anion Exchange Membranes for Fuel Cell ApplicationsJournal of the American Chemical Society, 2010
- Synthesis and Characterization of Poly(phenylene)-Based Anion Exchange Membranes for Alkaline Fuel CellsMacromolecules, 2009
- Preparation of ETFE-based anion exchange membrane to reduce permeability of vanadium ions in vanadium redox batteryJournal of Membrane Science, 2007
- Separation of different ions from wastewater at various operating conditions using electrodialysisSeparation and Purification Technology, 2007
- Steady-State dc and Impedance Investigations of H2/O2 Alkaline Membrane Fuel Cells with Commercial Pt/C, Ag/C, and Au/C CathodesThe Journal of Physical Chemistry B, 2006
- Prospects for Alkaline Anion‐Exchange Membranes in Low Temperature Fuel CellsFuel Cells, 2005
- Positively charged composite nanofiltration membrane prepared by poly(N,N‐dimethylaminoethyl methacrylate)/polysulfoneJournal of Applied Polymer Science, 2003
- Bi-ionic chloride-nitrate equilibrium in a commercial ion-exchange membraneDesalination, 2003
- Fundamental studies of a new series of anion exchange membranes: membrane preparation and characterizationJournal of Membrane Science, 2001