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@Article{VargasPoDuSoBaGo:2017:FoCoPo,
               author = "Vargas, Ludimila Resende and Poli, Anne Karoline and Dutra, Rita 
                         de C{\'a}ssia Lazzarini and Souza, Camila Brito de and Baldan, 
                         Maur{\'{\i}}cio Ribeiro and Gon{\c{c}}alves, Emerson Sarmento",
          affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)}",
                title = "Formation of composite polyaniline and graphene oxide by physical 
                         mixture method",
              journal = "Journal of Aerospace Technology and Management",
                 year = "2017",
               volume = "9",
               number = "1",
                pages = "29--38",
                month = "jan./mar.",
             keywords = "Graphene oxide, Polyaniline, Structure, Morphology, FT-IR, DSC.",
             abstract = "The development of polyaniline and graphene oxide composites aims 
                         to join the unique properties of each material for aerospace 
                         applications. The present paper demonstrates an easy and quick 
                         method, compared to the ones found in the literature, to obtain a 
                         composite made with polyaniline doped with dodecylbenzenesulfonic 
                         acid, a combination commonly called polyaniline, and graphene 
                         oxide. Nowadays, the most common studied methods are 
                         electrochemistry and in situ chemical polymerization. Differently 
                         from these methods, the films were obtained by a physical mixture 
                         of equimolar suspension of graphene oxide (4 mg/mL) with 3 
                         concentrations of polyaniline powder: 25; 50 and 75%, being 
                         compared to pure graphene oxide and polyaniline. The morphology 
                         and structure behavior of all the films were studied, besides the 
                         bonding nature between both materials. The films were analyzed by 
                         scanning electron microscopy, X-ray diffraction, Fourier transform 
                         infrared spectroscopy, and differential scanning calorimetry. The 
                         apparent interaction between graphene oxide corrugated sheets and 
                         polyaniline grains was verified by scanning electron microscopy 
                         images. It can be noticed, as the concentration of polyaniline 
                         increases, that more polymer was entrapped. To prove the formation 
                         of polyaniline/graphene oxide composite, X-ray diffraction and 
                         Fourier transform infrared spectroscopy techniques demonstrated 
                         the changes on graphene oxide crystallographic plans and on the 
                         chemical bonding between polyaniline and graphene oxide, 
                         suggesting an interaction between polyaniline and graphene oxide, 
                         especially in the composite with 50% polyaniline/50% graphene 
                         oxide. Differential scanning calorimetry was used to highlight 
                         this effect through the increase in thermal stability. The method 
                         of physical mixture was efficient to obtain the polyaniline/ 
                         graphene oxide composites.",
                  doi = "10.5028/jatm.v9i1.697",
                  url = "http://dx.doi.org/10.5028/jatm.v9i1.697",
                 issn = "1984-9648",
             language = "en",
           targetfile = "vargas_formaiton.pdf",
        urlaccessdate = "01 dez. 2020"
}


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