Caracterização espectroscópica do polifluoreto de vinilideno (PVDF) dopado com Eu2O3, com ligante 2-aminoteraftalato (AMT) e com complexo AMT/Eu2O3

Abstract

The growing technological development has driven research related to preparation and characterization of new materials. Among these are found polymeric materials, which have high chemical and mechanical resistance, thermal stability, easy of processing, among others, with emphasis on mechanical, chemical, electronics and food industry. Thus, this study aimed to the synthesis and study of the characteristics of polyvinylidene fluoride (PVDF) film doped with europium oxide (Eu2O3), with 2-aminoterephthalate binder (AMT) and with the complex this binder added to metal (AMT/Eu2O3), as a function of concentration. For the synthesis of these materials was used crystallization in solution method. The relative absorption and emission of the samples were measured by the absorption spectroscopic techniques ultraviolet-visible (UV-Vis) spectroscopy and fluorescence, respectively. The absorption spectra enabled to identify the higher absorptivity of the binder. And the emission spectra allowed to observe the characteristic emission of europium in the spectrum of PVDF/Eu2O3 movies, the enlargement of the emission band of the binders due to the presence of the acid and salt form on both, and the displacement of the peak emission of PVDF/AMT/Eu2O3 films, in the region of the electromagnetic spectrum from green to blue, attributed to the interaction of the complex with the polymer matrix and solvent. Therefore, this material has characteristics for potential applications in optical and photonic devices.