S. Dapoz et al., ESCA CHARACTERIZATION OF HEPARIN-LIKE FLUOROPOLYMERS OBTAINED BY FUNCTIONALIZATION AFTER GRAFTING INDUCED BY SWIFT HEAVY-ION IRRADIATION, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 105(1-4), 1995, pp. 120-125
Poly(vinylidene fluoride) (PVDF) and the poly(hexafluoropropylene-viny
lidene fluoride) (Viton) films are modified in order to produce hepari
n-like materials. This transformation is carried out on three steps: s
wift heavy ion irradiation (performed at the GANIL, Caen, France) of t
he polymer substrates, polystyrene (PS) grafting, functionalization of
the PS. X-ray photoelectron spectroscopy is used to analyze the modif
ication of the surface chemical composition at the several steps.