Estudo dos filmes de poliacrilonitrila modificados pela adição de clorofilas, citocromo-c, Fe(II) e Fe(III)

• Ano de defesa: 2009
• Autor(a) principal: Santos, Vadilson Malaquias dos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Química; Centro de Ciências Exatas; UFES; Programa de Pós-Graduação em Química
• Palavras-chave em Português: Poliacrilonitrila; Clorofila; Grupo dos Citocromos c; Polímeros; Química; 54
• Link de acesso: http://repositorio.ufes.br/handle/10/4641

In this work was studiedthe synthesis, characterization and some properties of the films of polyacrylonitrile (PAN), when adsorbed organic charge of metalporphyrinsnatural, organic molecules in the specific case of well known chemical properties, the chlorophyll (Chl) and cytochrome c (Cyt-c) and inorganiccharges: salts of Fe (II), Fe (III) and K +. In experiments to obtain data, wereused the techniques of infrared spectroscopy (FTIR) in the ultraviolet-visible (UV-VIS), fluorescence (EF), Mössbauer (MS), X-ray diffraction (XRD), microscopy scanning electron (SEM), thermal analysis (TG and DSC), elemental analysis, viscometer, cyclic voltammetry, and measures of resistivity. The synthesis of PAN in four replicates showed a yield above 77%.The molecular weight of PAN was obtained through the viscometer and the degree of crystallinity was obtained by XRD, are comparable to the literature. In the adsorption of cytochrome c, chlorophyll, and salts of Fe (II), Fe (III) and K+were products with characteristics that were analyzed by FTIR, TG, DSC, UV-VIS and EF, which has significant changes in physical and chemical properties of these materials. Besides the analysis of conventional Mössbauer analysis were carried out and measures the conductivity of materials. The adsorption isotherms and kinetics were performed for the salts of Fe (III) and cytochrome c show results of the adsorption of these substances in the PAN