Membrane preparation from hyperbranched perfluorinated polymers

Matthew J. Quast, Anja Mueller

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

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 languageEnglish
Pages (from-to)961-972
Number of pages12
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume57
Issue number9
DOIs
StatePublished - May 1 2019

Keywords

  • films
  • fluoropolymers
  • glass transition
  • hyperbranched
  • membranes
  • thermal properties

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