| 摘要 |
This invention relates to biodegradable polyurethanes on the basis of a polyol prepolymer and an L-lysine derivative having at least 2 isocyanate groups. The polyol prepolymer is preferably a polyester polyol prepolymer obtained by ring-opening polymerization of L-lactide, glycolide and/or lactone with a cyclic polyol. These new polyurethanes can be used in the production of different types of biomedical products, such as artificial skin, wound dressing, artificial veins, nerve grafts etc. |
