132199 20240301161206.0 doi 10.1016/j.polymer.2009.01.034 sideral 65621 ART-2009-65621 eng Millan, A. (orcid)0000-0003-0828-3212 Akaganeite polymer nanocomposites 2009 An “in situ” method for the production of akaganeite polymer nanocomposites is described. A controlled precipitation is achieved by using a polymer matrix, polyvinylpyridine, containing N-base functional groups that form coordination bonds with iron ions. The resulting materials have permitted the observation of two sources of magnetic moment in akaganeite nanoparticles: (1) finite size effects with a characteristic blocking temperature below 2 K; and (2) a deficient Cl− occupancy, with a characteristic blocking temperature around 18 K. Moreover, the nanocomposites can be dissolved in slightly acidic media to obtain stable aqueous nanoparticle dispersions that could be useful in biomedical applications. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MICINN/CSD2007-00010 info:eu-repo/grantAgreement/ES/MICINN/MAT2007-61621 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.573 2009 POLYMER SCIENCE 10 / 76 = 0.132 2009 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Urtizberea, A. (orcid)0000-0002-8424-9780 Natividad, E. Universidad de Zaragoza (orcid)0000-0003-2553-0633 Luis, F. Universidad de Zaragoza (orcid)0000-0001-6284-0521 Silva, N. J. O. Palacio, F. (orcid)0000-0002-6403-7270 Mayoral, I. Ruiz-Gonzalez, M. L. Gonzalez-Calbet, J. M. Lecante, P. Serin, V. 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 50, 5 (2009), 1088-1094 Polymer Polymer 0032-3861 2368202 http://zaguan.unizar.es/record/132199/files/texto_completo.pdf Postprint 2350512 http://zaguan.unizar.es/record/132199/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:132199 articulos driver 2024-03-01-14:51:59 ARTICLE