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Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA

The incorporation of magnetic barium hexaferrite nanoparticles in a transparent polymer matrix of poly(methyl methacrylate) (PMMA) is reported for the first time. The barium hexaferrite nanoplatelets doped with Sc(3+), i.e., BaSc(0.5)Fe(11.5)O(12) (BaHF), having diameters in the range 20 to 130 nm a...

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Autores principales: Ferk, Gregor, Krajnc, Peter, Hamler, Anton, Mertelj, Alenka, Cebollada, Federico, Drofenik, Miha, Lisjak, Darja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4464329/
https://www.ncbi.nlm.nih.gov/pubmed/26066069
http://dx.doi.org/10.1038/srep11395
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author Ferk, Gregor
Krajnc, Peter
Hamler, Anton
Mertelj, Alenka
Cebollada, Federico
Drofenik, Miha
Lisjak, Darja
author_facet Ferk, Gregor
Krajnc, Peter
Hamler, Anton
Mertelj, Alenka
Cebollada, Federico
Drofenik, Miha
Lisjak, Darja
author_sort Ferk, Gregor
collection PubMed
description The incorporation of magnetic barium hexaferrite nanoparticles in a transparent polymer matrix of poly(methyl methacrylate) (PMMA) is reported for the first time. The barium hexaferrite nanoplatelets doped with Sc(3+), i.e., BaSc(0.5)Fe(11.5)O(12) (BaHF), having diameters in the range 20 to 130 nm and thicknesses of approximately 5 nm, are synthesized hydrothermally and stabilized in 1-butanol with dodecylbenzenesulfonic acid. This method enables the preparation of monolithic nanocomposites by admixing the BaHF suspension into a liquid monomer, followed by in-situ, bulk free-radical polymerization. The PMMA retains its transparency for loadings of BaHF nanoparticles up to 0.27 wt.%, meaning that magnetically and optically anisotropic, monolithic nanocomposites can be synthesized when the polymerization is carried out in a magnetic field. The excellent dispersion of the magnetic nanoparticles, coupled with a reasonable control over the magnetic properties achieved in this investigation, is encouraging for the magneto-optical applications of these materials.
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spelling pubmed-44643292015-06-18 Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA Ferk, Gregor Krajnc, Peter Hamler, Anton Mertelj, Alenka Cebollada, Federico Drofenik, Miha Lisjak, Darja Sci Rep Article The incorporation of magnetic barium hexaferrite nanoparticles in a transparent polymer matrix of poly(methyl methacrylate) (PMMA) is reported for the first time. The barium hexaferrite nanoplatelets doped with Sc(3+), i.e., BaSc(0.5)Fe(11.5)O(12) (BaHF), having diameters in the range 20 to 130 nm and thicknesses of approximately 5 nm, are synthesized hydrothermally and stabilized in 1-butanol with dodecylbenzenesulfonic acid. This method enables the preparation of monolithic nanocomposites by admixing the BaHF suspension into a liquid monomer, followed by in-situ, bulk free-radical polymerization. The PMMA retains its transparency for loadings of BaHF nanoparticles up to 0.27 wt.%, meaning that magnetically and optically anisotropic, monolithic nanocomposites can be synthesized when the polymerization is carried out in a magnetic field. The excellent dispersion of the magnetic nanoparticles, coupled with a reasonable control over the magnetic properties achieved in this investigation, is encouraging for the magneto-optical applications of these materials. Nature Publishing Group 2015-06-12 /pmc/articles/PMC4464329/ /pubmed/26066069 http://dx.doi.org/10.1038/srep11395 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Ferk, Gregor
Krajnc, Peter
Hamler, Anton
Mertelj, Alenka
Cebollada, Federico
Drofenik, Miha
Lisjak, Darja
Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA
title Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA
title_full Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA
title_fullStr Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA
title_full_unstemmed Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA
title_short Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA
title_sort monolithic magneto-optical nanocomposites of barium hexaferrite platelets in pmma
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4464329/
https://www.ncbi.nlm.nih.gov/pubmed/26066069
http://dx.doi.org/10.1038/srep11395
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