Universiti Teknologi Malaysia Institutional Repository

Charged surface modifying macromolecules in polymer electrolyte membrane

Mohd-Norddin, M. N. A and Ismail, Ahmad Fauzi and Matsuura, Takeshi and D., Rana (2008) Charged surface modifying macromolecules in polymer electrolyte membrane. Jurnal Teknologi (49F). pp. 91-102. ISSN 0127-9696

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Abstract

Charged surface modifying macromolecule (cSMM) end capped with sulfonic group was prepared and blended into sulfonated poly (ether ether ketone) (SPEEK). The modified membrane was characterized for polymer electrolyte membrane application; i.e. a SPEEK/cSMM blend membrane was compared to a SPEEK membrane and a Nafion 112 membrane for the thermal and mechanical stability, hydrophilicity and water uptake. Thermal and mechanical stability of the blend membrane were slightly reduced from that of the SPEEK membrane but still higher than that of the Nafion 112 membrane. The blend membrane showed an increase in hydrophilicity and water uptake as compared to the pristine membrane. The addition of cSMM has enabled the water uptake to be increased which is crucial to enhance the proton conductivity that of SPEEK. This study found that cSMM is a good candidate as an additive for SPEEK in improving its function as polymer electrolyte membrane.

Item Type:Article
Uncontrolled Keywords:Direct methanol fuel cell; proton exchange membrane; sulfonated poly (ether ether ketone), charged surface modifying macromolecule
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:8513
Deposited By: Pn Norhayati Abu Ruddin
Deposited On:28 Apr 2009 09:01
Last Modified:25 Oct 2010 04:11

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