-2- -2- METHOD FOR CROSSLINKING HYDROGELS WITH BIS- AND POLY-2-OXAZOLIDINONES

摘要

The present invention relates to a method of post-crosslinking a hydrogel with bis-2-oxazolidinone and poly-2-oxazolidinone.;The present invention is a method for treating a polymer with a surface postcrosslinking solution, postcrosslinking by temperature rise during or after this treatment, and then drying the surface absorbable polymer by surface drying, wherein the photocrosslinker is dissolved in an inert solvent, A bis-2-oxazolidinone or poly-2-oxazolidinone or a mixture of bis-2-oxazolidinone and poly-2-oxazolidinone comprising a structural unit represented by Formula 1 below It includes a method.;Formula 1;In the above formula,;R ¹ is a branched or unbranched (C ₁ -C ₁₈ ) alkylene radical, a branched or unbranched (C ₂ -C ₁₈ ) alkenylene radical, (C ₅ -C ₈ ) cycloalkylene radical, phenyl Ylene radicals, naphthylene radicals, anthracenylene radicals, hydrocarbon substituted phenylene, naphthylene or anthracenylene radicals, or another substituted or unsubstituted (C ₆ -C ₁₈ ) arylene radical,;R ² is branched or unbranched (C ₁ -C ₁₈ ) alkylene,;n is an integer from 1 to 50.