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The alkali stability of radiation-grafted anion-exchange membranes containing pendent 1-benzyl-2,3-dimethylimidazolium head-groups

Page, OMM, Poynton, SD, Murphy, S, Lien Ong, A, Hillman, DM, Hancock, CA, Hale, MG, Varcoe, JR, Page, OMM and Apperley, DC (2013) The alkali stability of radiation-grafted anion-exchange membranes containing pendent 1-benzyl-2,3-dimethylimidazolium head-groups RSC Advances, 3 (2). pp. 579-587.

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Abstract

Radiation-grafted anion-exchange membranes (AEM) containing pendent benzyltrimethylammonium, 1-benzyl-3-methylimidazolium and 1-benzyl-2,3- dimethylimidazolium functional head-groups were synthesised with ion-exchange capacities in the range 1.7-1.9 meq g. The ionic conductivities of the AEMs were also comparable (24.5 ± 1.8 mS cm at 50°C). The alkali stability (in aqueous potassium hydroxide (1 mol dm ) at 60°C) of the 1-benzyl-2,3-dimethylimidazolium head-groups was superior to the 1-benzyl-3-methylimidazolium but inferior to the benzyltrimethylammonium benchmark head-groups. Radiation-grafted AEMs containing pendent 1-benzyl-2,3-dimethylimidazolium head-groups are not suitable for application in electrochemical devices containing highly alkaline environments. © 2013 The Royal Society of Chemistry.

Item Type: Article
Authors :
AuthorsEmailORCID
Page, OMMUNSPECIFIEDUNSPECIFIED
Poynton, SDUNSPECIFIEDUNSPECIFIED
Murphy, SUNSPECIFIEDUNSPECIFIED
Lien Ong, AUNSPECIFIEDUNSPECIFIED
Hillman, DMUNSPECIFIEDUNSPECIFIED
Hancock, CAUNSPECIFIEDUNSPECIFIED
Hale, MGUNSPECIFIEDUNSPECIFIED
Varcoe, JRUNSPECIFIEDUNSPECIFIED
Page, OMMUNSPECIFIEDUNSPECIFIED
Apperley, DCUNSPECIFIEDUNSPECIFIED
Date : 14 January 2013
Identification Number : https://doi.org/10.1039/c2ra22331g
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 13:43
Last Modified : 28 Mar 2017 13:43
URI: http://epubs.surrey.ac.uk/id/eprint/745737

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