Crosslinked polysaccharide sponge

Details Crosslinked polysaccharide sponge Crosslinked polysaccharide sponge

C - Chemistry, Metallurgy

08

F

C08F 299/00 (2006.01) C08B 11/12 (2006.01) C08B 11/20 (2006.01) C08B 15/00 (2006.01) C08B 37/00 (2006.01) C08B 37/04 (2006.01) C08B 37/08 (2006.01) C08J 9/28 (2006.01) C08J 9/36 (2006.01) C08L 5/00 (2006.01)

Patent

CA 2435491

A process for producing a polysaccharide sponge comprises the steps of (A) freezing a photoreactive polysaccharide solution, and (B) irradiating the frozen photoreactive polysaccharide solution with light to crosslink the photoreactive polysaccharide, thereby obtaining the polysaccharide sponge. The process includes simplified steps requiring no removal of solvent, and has such an advantage that impurities are easily removed therefrom.

L'invention concerne un procédé de préparation d'une éponge polysaccharidique photoréticulée. Ce procédé comprend l'étape (A) consistant à congeler une solution d'un polysaccharide photoréactif et l'étape (B) consistant à réticuler le polysaccharide photoréactif par irradiation de la solution congelée au moyen d'un rayonnement, afin d'obtenir ainsi une éponge polysaccharidique. Ce procédé présente un caractère avantageux en ce qu'il comprend les étapes simplifiées n'impliquant pas le retrait de solvants. De plus, des impuretés peuvent être facilement éliminées.

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