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Brevet Année : 2000

Separation method and device with semipermeable membranes comprising sulfonated polyimides

Résumé

Membranes with improved permselectivity in electrolytic and electrodialysis cells in acidic media are based on sulfonated polyimides prepd. from two diamines, 1 of which has sulfo groups. A typical membrane was based on a polyimide with repeating units having structures based on 2,2'-disulfo-4,4'-biphenyldiamine, 4,4'-diaminodiphenyl ether, and 1,4,5,8-naphthalenetetracarboxylic acid

Domaines

Polymères
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Dates et versions

hal-00560141 , version 1 (27-01-2011)

Identifiants

  • HAL Id : hal-00560141 , version 1

Citer

Michel Pineri, Gerald Pourcelly, Régis Mercier. Separation method and device with semipermeable membranes comprising sulfonated polyimides. Patent n° : WO2000048718. 2000, pp.63. ⟨hal-00560141⟩
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