Biodegradable α-hydroxyl polyesters,such as poly(lactic acid)(PLA)and poly(lactic-co-glycolic acid)(PLGA)were investigated as scaffolds for tissue engineering.However,polymeric materials on the basis of lactide are limited in blood vessel engineering due to their poor hydrophilicity and low affinity for the cells.In this study,the functional polylactide with pendant carboxyl(PLMACA)was synthesized,which was expected to improve the blood compatibility and cell adhesion of polyester based on PLA.The structure and composition of PLMACA were confirmed via {}1H NMR spectrum and the compatibilities for blood and cell were stu-{died.} The results show that the PLMACA is hopeful to be used as blood vessel substitute with good HUVEC adhesion and anti-platelet adhesion.
