Membrane preparation from hyperbranched perfluorinated polymers

Matthew J. Quast; Anja Mueller

doi:10.1002/pola.29348

Membrane preparation from hyperbranched perfluorinated polymers

Matthew J. Quast, Anja Mueller

Chemistry & Biochemistry

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	961-972
Number of pages	12
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	57
Issue number	9
DOIs	https://doi.org/10.1002/pola.29348
State	Published - May 1 2019

Keywords

films
fluoropolymers
glass transition
hyperbranched
membranes
thermal properties

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10.1002/pola.29348

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title = "Membrane preparation from hyperbranched perfluorinated polymers",

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.",

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note = "Funding Information: Support from the Science of Advanced Materials Graduate program and Department of Chemistry at Central Michigan University is gratefully acknowledged. Dr. Wenjun Du is gratefully acknowledged for help with the AFM. Publisher Copyright: {\textcopyright} 2019 Wiley Periodicals, Inc.",

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T1 - Membrane preparation from hyperbranched perfluorinated polymers

AU - Quast, Matthew J.

AU - Mueller, Anja

N1 - Funding Information: Support from the Science of Advanced Materials Graduate program and Department of Chemistry at Central Michigan University is gratefully acknowledged. Dr. Wenjun Du is gratefully acknowledged for help with the AFM. Publisher Copyright: © 2019 Wiley Periodicals, Inc.

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N2 - 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.

AB - 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.

KW - films

KW - fluoropolymers

KW - glass transition

KW - hyperbranched

KW - membranes

KW - thermal properties

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Membrane preparation from hyperbranched perfluorinated polymers

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Keywords

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