多嵌段聚醚型聚氨酯(SPEU)以其优良的力学性能和良好的血液相容性,被公认为一种重要的心血管医用高分子材料。现在一般认为,高分子生物材料的抗凝血性能主要取决于材料表层的组成和结构,但以前的工作多集中于新材料的开发研究,很少涉及到动态形变对SPEU的表层结构及其血液相容性的影响。 Multi-block polyether polyurethane (SPEU) is recognized as an important cardiovascular medical polymer material for its excellent mechanical properties and good blood compatibility. Now generally believed that the anticoagulant properties of polymer biological materials mainly depends on the composition and structure of the material surface, but the previous work more focused on the development of new materials, rarely involved in the dynamic deformation of the surface structure of SPEU and its blood Compatibility effects.