An experimental study on the synthesis of poly(vinyl pivalate)-based magnetic nanocomposites through suspension polymerization process

摘要: Abstract A new class of magnetopolymeric nanocomposites intended for biomedical applications such as vascular embolization and hyperthermia treatment has been synthesized by in situ incorporation oleic acid-modified Fe3O4 superparamagnetic nanoparticles into poly(vinyl pivalate) thermoplastic matrices through suspension polymerization. Spherical microparticles pivalate)/Fe3O4 with controlled morphology size have successfully obtained based on the proposed experimental methodology, showing good magnetic properties, which indicates that polymers might be employed embolic agent. This magneto-polymeric material presents main advantage formation nanocomposites, ensures proper dispersion matrix, leading to a desired behavior final material, observed via magnetization measurements. The chemical characterization inorganic filler energy-dispersive X-ray spectroscopy showed phase was composed mainly Fe form iron oxide, lying range 92–99%. Thermal stability materials determined thermogravimetry analyses significant weight loss occurring from 300 °C 700 °C, exhibiting thermal stability. In addition, fraction evaluated thermogravimetric measurements 2 wt.% 16 wt.%.