Abstract
Polyvinylidene fluoride (PVDF) films are irradiated with 8 MeV/amu ion beams at different fluences and doses. The ion beam effects in PVDF are investigated in situ, by the induced molecular emission, and ex situ, by physical characterization of irradiated films. Quadrupole mass spectrometry is employed to measure the dehydrogenation and dehydrofluorination of the polymer as a function of the ion fluence. X-ray photoelectron spectroscopy, X-ray diffraction and Infra-Red transmission spectroscopy are used to study the structural modifications induced in PVDF by the ion irradiation. Grafting processes are developed along the ion track of irradiated PVDF and the polystyrene-PVDF obtained copolymer is an inhomogeneous composite material which shows special technological applications.
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