A simple Procedure to change the Direction of Swelling of Polymer Electrolyte Membranes
- A simple Procedure to change the Direction of Swelling of Polymer Electrolyte Membranes
- Steffen Hink; 헨켄스마이어디억
- ion exchange membrane; shape memory effect
- Issue Date
- Workshop on Ion Exchange Membrane Applications
- It is well known that strong in-plane swelling of polymer electrolyte membranes in fuel cell applications can cause early failure due to crack formation, especially at the edge between active and inactive area, or delamination between the membrane and the electrode. We present a
simple method to direct the undesired in-plane swelling to the less detrimental through-plane swelling. The method was proved for ionically and covalently crosslinked membranes based on radiation grafted ETFE-graft-poly(α-methylstyrene-co-methacrylonitrile-co-vinylpyridine) and for the perfluorosulfonic acid polymer Nafion R 212.
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