Aromatic polymer phosphonic acid derivative and process for...

C - Chemistry – Metallurgy – 08 – G

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C08G 65/48 (2006.01) B01D 71/52 (2006.01) B01D 71/68 (2006.01) B01D 71/82 (2006.01) C07C 17/12 (2006.01) C07F 9/38 (2006.01) C08J 5/22 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2372049

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.

Divulgation d'un dérivé d'acide phosphonique et de polymère aromatique, dans lequel un groupe dérivé de l'acide phosphonique est directement lié à un noyau aromatique. Ledit dérivé d'acide phosphonique et de polymère aromatique peut être produit par bromation d'un polymère aromatique spécifique au moyen d'un agent de bromation, puis par l'action d'un phosphite de trialkyle en présence d'un catalyseur à base d'halogénure de nickel pour produire un diester d'acide phosphonique, puis ensuite par l'hydrolyse du diester. Le dérivé d'acide phosphonique et de polymère aromatique a une excellente résistance aux radicaux et est utilisé dans une pile à combustible à polymère solide.

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