dc.creatorLissarrague, Maria Haydee
dc.creatorFascio, Mirta Liliana
dc.creatorGoyanes, Silvia Nair
dc.creatorD'accorso, Norma Beatriz
dc.date.accessioned2018-04-19T18:19:15Z
dc.date.accessioned2018-11-06T11:20:27Z
dc.date.available2018-04-19T18:19:15Z
dc.date.available2018-11-06T11:20:27Z
dc.date.created2018-04-19T18:19:15Z
dc.date.issued2016-02
dc.identifierLissarrague, Maria Haydee; Fascio, Mirta Liliana; Goyanes, Silvia Nair; D'accorso, Norma Beatriz; Improving bone cement toughness and contrast agent confinement by using acrylic branched polymers; Elsevier Science; Materials Science and Engineering: C; 59; 2-2016; 901-908
dc.identifier0928-4931
dc.identifierhttp://hdl.handle.net/11336/42706
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1848841
dc.description.abstractA new biomedical material to be used as part of acrylic bone cement formulations is described. This new material is tough, its Young's Modulus is similar to the one of poly (methylmethacrylate) and the contrast agent, usually employed in acrylic bone cements, is homogeneously distributed among the polymeric matrix. Additionally, its wear coefficient is 66% lower than the one measured in poly(methyl methacrylate). The developed material is a branched polymer with polyisoprene backbone and poly(methyl methacrylate) side chains, which are capable of retaining barium sulphate nanoparticles thus avoiding their aggregation. The grafting reaction was carried out in presence of the nanoparticles, using methyl methacrylate as solvent. From the 1H-NMR spectra it was possible to determine the average number of MMA units per unit of isoprene (3.75:1). The ability to retain nanoparticles (about 8 wt.%), attributed to their interaction with the polymer branches, was determined by thermogravimetric analysis and confirmed by FTIR and microscopy techniques. By SEM microscopy it was also possible to determine the homogeneous spatial distribution of the barium sulphate nanoparticles along the polymer matrix.
dc.languageeng
dc.publisherElsevier Science
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0928493115305312
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.msec.2015.10.097
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectBRANCHED POLYMER
dc.subjectPOLY(METHYL METHACRYLATE)
dc.subjectNATURAL RUBBER
dc.subjectPOLYISOPRENE
dc.subjectBARIUM SULPHATE NANOPARTICLES
dc.titleImproving bone cement toughness and contrast agent confinement by using acrylic branched polymers
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución