Improving bone cement toughness and contrast agent confinement by using acrylic branched polymers.
作者： Maria H Lissarrague , Mirta L Fascio , Silvia Goyanes , Norma B D'Accorso , None
DOI: 10.1016/J.MSEC.2015.10.097
关键词: Composite material 、 Nanoparticle 、 Poly(methyl methacrylate) 、 Polymer 、 Materials science 、 Toughness 、 Methyl methacrylate 、 Side chain 、 Bone cement 、 Thermogravimetric analysis
摘要: A new biomedical material to be used as part of acrylic bone cement formulations is described. This tough, its Young's Modulus similar the one poly (methylmethacrylate) and contrast agent, usually employed in cements, homogeneously distributed among polymeric matrix. Additionally, wear coefficient 66% lower than measured poly(methyl methacrylate). The developed a branched polymer with polyisoprene backbone methacrylate) side chains, which are capable retaining barium sulphate nanoparticles thus avoiding their aggregation. grafting reaction was carried out presence nanoparticles, using methyl methacrylate solvent. From (1)H-NMR spectra it possible determine average number MMA units per unit isoprene (3.75:1). ability retain (about 8wt.%), attributed interaction branches, determined by thermogravimetric analysis confirmed FTIR microscopy techniques. By SEM also homogeneous spatial distribution along
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