Abstract
The revolutionary functionally gradient proton exchange membranes were fabricated by EB irradiation with heterogeneous energy deposition. These heterogeneous energy deposition profiles (Depth-Dose profiles) were simulated by Monte Carlo simulation code EGS5. In the process of EB-grafting method of styrene onto base fluorinated polymer, the energy depositions selected from the Depth-Dose profiles were used. The grafted membranes were sulfonated with chlorosulfonic acid in carbon tetrachloride. The DOGs in the direction of thickness showed that EB Depth-Dose profiles corresponded to the EB grafting reaction. The functionally gradient proton exchange membranes had a water uptake gradient in the direction of depth, and hence could be a promising solution to manage water behavior in Membrane Electrode Assembly (MEA) of Polymer Electrolyte Fuel Cell (PEFC).
Original language | English |
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Pages (from-to) | 387-392 |
Number of pages | 6 |
Journal | Journal of Photopolymer Science and Technology |
Volume | 23 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2010 |
Keywords
- EB
- EB-grafting
- Functionally gradient
- PEFC
- ULEB
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry