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Abstract
Radiation-induced conformational disorder in ferroelectric P(VDF/TrFE)(75/25) irradiated in the paraelectric phase with fast electrons was studied using IR and NIR Raman spectroscopy and related to changes in dielectric relaxation. The observed radiation-induced changes in the intensity of bands characteristic of all-trans and trans-gauche conformations confirm the scission of long-range all-trans chain conformation. Electron irradiation modifies also the surface topography of the copolymer film: AFM studies of irradiated samples show a considerable increase in the surface roughness.