"Polysaccharide Derivative And Hydrogel Thereof"

Abstract: Disclosed are a polysaccharide derivative obtained by substituting some of the carboxyl groups of a carboxy polysaccharide with -NH-X-CO-Y-Z; and a hydrogel thereof . Here, X is a C1-10 hydrocarbon group, Y is a polyalkylene oxide having oxygen atoms at both ends, and Z is a C1-24 hydrocarbon group or -CO-R2, with R2 being a C1-23 hydrocarbon group. The hydrogel has excellent viscoelasticity and can be injected into a predetermined location with an injection device such as a syringe , and thus can be advantageously used as a medical gel or an adhesion barrier.

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