Highly stable polyphenylene ionomer membranes from dichlorobiphenyls
Keisuke Shiino1, Junpei Miyake, Kenji Miyatake
1Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4 Takeda, Kofu, Yamanashi 400-8510, Japan.
Chemical Communications (Cambridge, England)
|June 1, 2019
Summary
Researchers developed a cost-effective method to create stable, proton conductive polyphenylene ionomer (SPP-BP) membranes. These membranes show excellent chemical stability and high proton conductivity for advanced applications.
Area of Science:
- Polymer Chemistry
- Materials Science
- Electrochemistry
Background:
- Proton conductive membranes are crucial for electrochemical devices like fuel cells.
- Developing stable and efficient membranes remains a significant challenge.
- Polyphenylene-based materials offer potential for high-performance membranes.
Purpose of the Study:
- To report a simple and cost-effective synthetic strategy for highly stable, proton conductive polyphenylene membranes.
- To characterize the properties of the synthesized polyphenylene ionomer (SPP-BP).
- To optimize the membrane composition for enhanced performance.
Main Methods:
- Synthesis of SPP-BP from dichlorobenzenesulfonic acid and dichlorobiphenyls.
- Fabrication of membranes with varying m-biphenylene/p-biphenylene ratios.
- Evaluation of chemical stability and proton conductivity.
Main Results:
- A facile and economical synthetic route for SPP-BP was established.
- The SPP-BP membrane demonstrated outstanding chemical stability.
- An optimized membrane (4:1 m:p-biphenylene ratio) exhibited high proton conductivity.
Conclusions:
- The developed SPP-BP membranes offer a promising alternative for proton conductive applications.
- The simple synthesis and excellent properties make SPP-BP suitable for cost-effective, high-performance membranes.
- Further research can explore SPP-BP in various electrochemical energy systems.
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