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US 2017/0183435 A1Published application
Ionomer having high oxygen permeability
AssigneesDaikin Industries, Ltd., Asahi Kasei Kabushiki Kaisha
InventorsTadashi INO, Takashi YOSHIMURA, Masahiro KONDO, Naoto MIYAKE, Yuichi INOUE, Kuon MIYAZAKI, Takahiro TAGO
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Abstract
The present invention aims to provide an ionomer that can exhibit high oxygen permeability, especially under both low-and high-humidified conditions, and high power generation durability. The high oxygen permeable ionomer includes a specific repeating unit A and repeating unit B and has an equivalent weight of 250 to 930 and a glass transition temperature of 100° C. to 130° C.
Claims12
A high oxygen permeable ionomer, comprising:
- a repeating unit A;
- and
- a repeating unit B,
- the ionomer having an equivalent weight of 250 to 930 and a glass transition temperature of 100° C. to 130° C.,
- the repeating unit A being represented by the formula (1):
- wherein Rf11 represents a fluorinated hydrocarbon group having a carbon number of 1 or more and having no proton exchange group, and if the fluorinated hydrocarbon group has a carbon number of 2 or more, an oxygen atom may be inserted between two adjacent carbon atoms,
- the repeating unit B being represented by the formula (2):
- wherein Rp represents a monovalent group having a proton exchange group.
5 more elements
Dependencies are inferred from the claim text.