Fabrication of PP-g-PEGMA-g-heparin and its hemocompatibility: From protein adsorption to anticoagulant tendency

► Surface grafting on PP via O2 plasma pretreatment combining with UV-irradiated technique. ► We gave a definition of anti-protein adsorptive factor r to evaluate the thrombogenic tendency. ► Protein adsorption depended on graft density, molecular weight and the type of the protein. ► Heparinized PP exhibited very low platelet adhesion and a high bioactivity.