Sumitomo Chemical Company, Limited

Other

Toyota Jidosha Kabushiki Kaisha

Arihiro Yashiro

Shigeru Sasaki

Yasuaki Hidaka

Hideyuki Higashimura

Ken Yoshimura

Takumi Taniguchi

Mitsunori Nodono

Masanobu Tanaka

Rui Ishikawa

Yoshimura Ken

The present invention provides: a layered structure having a substrate and a hole injection and/or hole transport layer comprising an aromatic compound having, on a side chain, at least one type of group having a cationic center;

Layered structure, electronic device using same, aromatic compound, and method for manufacturing said compound

There is provided a polymer electrolyte which shows excellent characteristics as proton conductive membrane of fuel cells and the like. This polymer electrolyte contains an aromatic polymer which is characterized by having a super strong acid group in a side chain.

Aromatic polymer, method for producing the same and uses thereof

Provided is an aromatic polymer phosphonic acid derivative in which a phosphonic acid derivative group is directly bound to aromatic ring. Said aromatic polymer phosphonic acid derivative can be produced by brominating a specific aromatic polymer compound with a brominating agent, then acting thereon trialkyl phosphite in the presence of a nickel halide catalyst to give a phosphonic acid di-ester, and further, by hydrolyzing the di-ester. The aromatic polymer phosphonic acid derivative is excellent in radical resistance and used for a solid polymer type fuel cell.

Aromatic polymer phosphonic acid derivative and process for production the same

Polymer electrolyte composition and uses thereof

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Ibaraki, Japan

Arihiro Yashiro