Synthesis, structural characterization, and thermal properties of the poly(methylmethacrylate)/δ-FeOOH hybrid material: an experimental and theoretical study

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Autor(es): dc.creatorCorrêa, Silviana-
Autor(es): dc.creatorLacerda, Lívia C. T.-
Autor(es): dc.creatorPires, Maíra dos S.-
Autor(es): dc.creatorRocha, Marcus V. J.-
Autor(es): dc.creatorNogueira, Francisco G. E.-
Autor(es): dc.creatorSilva, Adilson C. da-
Autor(es): dc.creatorPereira, Marcio C.-
Autor(es): dc.creatorBrito, Angela D. B. de-
Autor(es): dc.creatorCunha, Elaine F. F. da-
Autor(es): dc.creatorRamalho, Teodorico C.-
Data de aceite: dc.date.accessioned2026-02-09T11:19:52Z-
Data de disponibilização: dc.date.available2026-02-09T11:19:52Z-
Data de envio: dc.date.issued2018-09-27-
Data de envio: dc.date.issued2018-09-27-
Data de envio: dc.date.issued2016-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/30794-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1138605-
Descrição: dc.descriptionThe δ-FeOOH/PMMA nanocomposites with 0.5 and 2.5 wt.% of δ-FeOOH were prepared by grafting 3-(trimethoxysilyl)propyl methacrylate on the surface of the iron oxyhydroxide particles. The FTIR spectra of the δ-FeOOH/PMMA nanocomposites showed that the silane monomers were covalently attached to the δ-FeOOH particles. Because of the strong interaction between the PMMA and δ-FeOOH nanoparticles, the thermal stability of the δ-FeOOH/PMMA nanocomposites was improved compared to the pure PMMA. The SEM analysis conferred the size agglomerate of particles regarding the morphology of samples. The theoretical study enabled a better understanding of the interaction of the polymer with the iron oxyhydroxide. The DFT-based calculations reinforce the radical trapping mechanism of stabilization of nanocomposites; that is, Fe3+ species might be able to accept electrons coming from the organic phase that decomposes via radical unzipping. The radical scavenge effect delays the weight loss of polymer.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherHindawi-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceJournal of Nanomaterials-
Título: dc.titleSynthesis, structural characterization, and thermal properties of the poly(methylmethacrylate)/δ-FeOOH hybrid material: an experimental and theoretical study-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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