The radiation-grafting of vinylbenzyl chloride onto poly(hexafluoropropylene-co-tetrafluoroethylene) films with subsequent conversion to alkaline anion-exchange membranes: Optimisation of the experimental conditions and characterisation
Varcoe, John R, Slade, Robert C T and Herman, Henryk (2003) The radiation-grafting of vinylbenzyl chloride onto poly(hexafluoropropylene-co-tetrafluoroethylene) films with subsequent conversion to alkaline anion-exchange membranes: Optimisation of the experimental conditions and characterisation Journal of Membrane Science, 218 (1-2). pp. 1-2.
Poly(hexafluoropropylene-co-tetrafluoroethylene) (FEP) was successfully radiation-grafted with vinylbenzyl chloride (VBC). Subsequently amination with trimethylamine followed by ion exchange with aqueous hydroxide yielded alkaline anion-exchange membranes (AAEMs). Experimental parameters were established for maximising the degree of grafting (d.o.g.); the optimum treatment duration for maximum amination was also established. The graft penetration at different degrees of grafting was investigated and related to the grafting conditions. The stabilities of the grafted membranes and the final AAEMs were thoroughly investigated using thermogravimetry (TG/DTA). The ion-exchange capacities (IECs), water uptake levels, and thicknesses of the AAEMs were measured. These AAEMs have potential for application in low temperature fuel cell systems.
|Divisions :||Faculty of Engineering and Physical Sciences > Chemistry|
|Date :||1 April 2003|
|Identification Number :||10.1016/S0376-7388(03)00167-4|
|Uncontrolled Keywords :||Radiation-Grafting, Alkaline Anion-Exchange Membrane, Fuel Cell|
|Additional Information :||Journal of Membrane Science Volume 218, Issues 1-2, 1 July 2003, Pages 147-163|
|Depositing User :||Mr Adam Field|
|Date Deposited :||27 May 2010 14:43|
|Last Modified :||23 Sep 2013 18:34|
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