一种抗氧化降解聚碳酸酯聚氨酯及其制备方法与应用
Antioxidant-degradable polycarbonate polyurethane was prepared by a two-step bulk synthesis method, which improved the compatibility of hard and soft segments and formed an antioxidant protective layer. This method solves the problems of insufficient antioxidant degradation and mechanical properties of existing polycarbonate-based polyurethane materials and is suitable for long-term implantation in biomaterials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN UNIV
- Filing Date
- 2024-09-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing polycarbonate-based polyurethane materials suffer from poor compatibility between hard and soft segments, resulting in poor resistance to oxidative degradation and mechanical properties, which limits their application in long-term implant materials.
Antioxidant degradable polycarbonate polyurethane was prepared by a two-step bulk synthesis method. Modified polycarbonate diol and hydroxyl-terminated polydimethylsiloxane were used as soft segments, and diisocyanate and chain extender were used as hard segments. By controlling the reaction conditions and adding chain extender, the interaction between hard and soft segments was enhanced to form an antioxidant protective layer.
It improves the antioxidant degradation resistance and mechanical properties of polyurethane materials, enhances biocompatibility, makes them suitable for long-term implantation in biomaterials, and reduces solvent recovery and treatment costs.
Smart Images
Figure CN119219883B_ABST