Abstract
In this research, membrane formation with hyperbranched perfluorinated polymers (HBFP) was investigated. To create a tough membrane, HBFP was blended and crosslinked with a tougher linear polymer. Blending only or crosslinking only was not sufficient to create a tough membrane, but combining blending with crosslinking was successful. Miscibility, phase separation, and thermal and mechanical properties were evaluated for a variety of systems. By using a toughening linear polymer with lower polarity, reduced phase separation and improved mechanical properties were seen. Overall, imidazole-containing HBFPs produced the clearest and toughest blends. These new hyperbranched ionomers and copolymers are strong candidates for future use in anhydrous proton exchange membranes.
Original language | English |
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Pages (from-to) | 961-972 |
Number of pages | 12 |
Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
Volume | 57 |
Issue number | 9 |
DOIs | |
State | Published - May 1 2019 |
Keywords
- films
- fluoropolymers
- glass transition
- hyperbranched
- membranes
- thermal properties