Polytetrafluoroethylene-Based Proton-Conducting Membranes Prepared by Ultraviolet-Induced Photografting

Polytetrafluoroethylene-Based Proton-Conducting Membranes Prepared by Ultraviolet-Induced Photografting

A process comprising ultraviolet (UV)-induced photografting of styrene into polytetrafluoroethylene (PTFE) films and subsequent sulfonation has been developed for preparing proton-conducting membranes. The significance of this process is that the graft chains can penetrate throughout the PTFE base f...

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Veröffentlicht in:Electrochemical and solid-state letters 2006, Vol.9 (11), p.G326-G329
Hauptverfasser: Chen, Jinhua, Asano, Masaharu, Maekawa, Yasunari, Sakamura, Takahiro, Kubota, Hitoshi, Yoshida, Masaru
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container_end_page G329
container_issue 11
container_start_page G326
container_title Electrochemical and solid-state letters
container_volume 9
creator Chen, Jinhua
Asano, Masaharu
Maekawa, Yasunari
Sakamura, Takahiro
Kubota, Hitoshi
Yoshida, Masaru
description A process comprising ultraviolet (UV)-induced photografting of styrene into polytetrafluoroethylene (PTFE) films and subsequent sulfonation has been developed for preparing proton-conducting membranes. The significance of this process is that the graft chains can penetrate throughout the PTFE base films; the resultant sulfonated electrolyte membrane with a low degree of grafting near 7% shows higher proton conductibility and better mechanical properties, similar to those of Nafion membrane. Furthermore, the performances of the UV-photografted electrolyte membranes are better as compared to those of the -ray radiation grafted electrolyte membranes.
doi_str_mv 10.1149/1.2344827
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title Polytetrafluoroethylene-Based Proton-Conducting Membranes Prepared by Ultraviolet-Induced Photografting
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