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Physico-chemical study of sulfonated polystyrene pore-filled electrolyte membranes by electrons induced grafting

Zubir, N. A. and Ismail, A. F. and Nasef, M. M. and Dahlan, K. Z. M. (2004) Physico-chemical study of sulfonated polystyrene pore-filled electrolyte membranes by electrons induced grafting. In: Regional Symposium on Membrane Science and Technology 2004, 21-25 April 2004, Puteri Pan Pacific Hotel, Johor Bahru, Johor, Malaysia.

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Abstract

Pore-filled polymer electrolyte membranes have been prepared as a potential proton exchange membrane by radiation induced grafting using simultaneous technique. The porous substrate films were grafted in a subsequent step after flooding the membranes pores with styrene monomer. The grafted films were then sulfonated in a post grafting reactions. The resulting membranes were characterized by evaluating their physico-chemical properties such as ion exchange capacity, water uptake and proton conductivity as a function of grafting yield. The overall results illustrated that polystyrene grafts is successfully anchored within the pores of PTFE films during grafting and subsequently transformed into hygroscopic proton exchange regions after being sulfonated. The measured conductivity of the sulfonated polystyrene pore-filled electrolyte PTFE membranes achieved were within the magnitude of 10-3 Scm-1 and 10-2 Scm-1 at room temperature and at higher operating temperature, respectively.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Pore-filled membranes; proton exchange membrane; electron beam radiation; physical and chemical properties
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:1007
Deposited By: Pn Norazana Ibrahim
Deposited On:23 Feb 2007 10:09
Last Modified:01 Jun 2010 02:50

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