Improved biocompatibility of poly (styrene-b-(ethylene-co-butylene)-b-styrene) elastomer by a surface graft polymerization of hyaluronic acid

► A graft polymerization of hyaluronic acid was first used to modify the SEBS film. ► The adhesion properties of platelet on the HA-modified film were investigated. ► The interaction of cells with the HA-modified film was systematically studied. ► The surface modification of HA imparted good biocompatiblilty to the substrate.