a polymer of fluorinated monomers and hydrophilic monomers is provided . it is also provided a polymer blend that contains a polymer of fluorinated monomers and another biocompatible polymer . the polymer of fluorinated monomers or polymer blend described herein and optionally a bioactive agent can form a coating on an implantable device such as a drug - delivery stent . the implantable device can be used for treating or preventing a disorder such as atherosclerosis , thrombosis , restenosis , hemorrhage , vascular dissection or perforation , vascular aneurysm , vulnerable plaque , chronic total occlusion , patent foramen ovale , claudication , anastomotic proliferation for vein and artificial grafts , bile duct obstruction , ureter obstruction , tumor obstruction , or combinations thereof .