Sulfo-group-containing heat-resistant high-molecular...

Details Sulfo-group-containing heat-resistant high-molecular... Sulfo-group-containing heat-resistant high-molecular...

C - Chemistry, Metallurgy

08

J

402/320

C08J 3/00 (2006.01) B01J 20/28 (2006.01) C08G 16/02 (2006.01) D01F 6/76 (2006.01)

Patent

CA 2033174

Disclosed herein is a sulfo-group-containing heat-resistant high-molecular material containing sulfo groups in an amount of not less than 1 wt.$ in terms of sulfur content and having an ammonia adsorptivity of not less than 10 mg/g, formed by heat-treating at a temperature of 250 - 500°C a starting composition composed mainly of a sulfo-group-containing aromatic high-molecular compound which comprises unit constituents of an aromatic sulfonic acid compound or a salt thereof and is soluble in aqueous solvents, and a preparation process thereof.

On produit un matériau polymère thermorésistant sulfoné, qui contient au moins 1 % en poids (en termes de teneur en soufre) de groupes sulfone et qui présente une capacité d'adsorption de l'ammoniac d'au moins 10 mg/g, en soumettant à un traitement thermique à une température comprise entre 250 et 500 C une composition d'un matériau de départ comprenant essentiellement un composé polymère aromatique sulfoné, qui contient un acide sulfonique aromatique ou son sel comme unité de répétition et qui est soluble dans des solvants aqueux.

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