# Fileset

[cameraReadyPaper-1-[0026].pdf](https://mdr.nims.go.jp/filesets/d4aaaf54-ce55-47b5-8c78-1961f66ec9d8/download)

## Creator

[Jedeok Kim](https://orcid.org/0000-0003-4301-1044), Fatin Bazilah Binti Fauzi

## Rights

[In Copyright](http://rightsstatements.org/vocab/InC/1.0/)

## Other metadata

[High sulfonation and membrane properties of polyphenylsulfone (PPSU) for ion exchange device application](https://mdr.nims.go.jp/datasets/88ceb440-8243-438b-8db2-fb3739005d3f)

## Fulltext

High sulfonation and membrane properties of polyphenylsulfone (PPSU) for ion exchange device application  *Jedeok Kim and Fatin Bazilah Binti Fauzi  National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, 305-0044, Japan *Kim.Jedeok@nims.go.jp  ABSTRACT       Polymer electrolytes for proton exchange are used in a variety of energy device fields such as fuel cells, water electrolysis, RFB, and water treatment. These electrolytes mainly use fluorinated ion exchange resins, but further improvements in proton conductivity, thinner membrane, and durability (mechanical, chemical, and temperature) are required. On the other hand, the development of non-fluorinated ion-exchange polymer electrolyte materials is required within the framework of achieving carbon neutrality. We have been studying the application of polyphenylsulfone (PPSU), a hydrocarbon-based engineering plastic, as a non-fluorinated electrolyte for energy devices. In this presentation, we report on sulfonation and cross-linking of PPSU, scale-up, and physical and chemical properties of uniform and large-area electrolyte membranes.  Fig. 1 Chemical structure and appearances of PPSU, SPPSU, and CSPPSU polymers  Acknowledgements This research was partly supported by the New Energy and Industrial Technology Development Organization (NEDO) through “Collaborative Industry-Academia-Government R&D Project for Solving Common Challenges Toward Dramatically Expanded Use of Fuel Cells and Related Equipment”.  REFERENCES [1] J. Kim, A. Ohira, H. Nakao, membranes, doi:10.3390/membranes10020031, 2020, 10, 31 – 45. [2] J. Kim, et al; Japan patent no. 6548176, EU patent no. EP3340350, US patent no. US1086215. mailto:Kim.Jedeok@nims