Abstract
A facile approach was developed for the preparation of the magnetic attapulgite-Fe3O4/polystyrene (ATP-Fe3O4/PS) tri-component nanocomposite via the one-pot in-situ radical bulk polymerization of styrene in the presence of the attapulgite nanofibrils (ATP) immobilized Fe3O4 nanoparticles (ATP-Fe3O4), with oleic acid (OA) as surface modifier. Compared with the tri-component nanocomposite prepared with the ATP nanofibrils and Fe3O4 nanoparticles added separately, the immobilization of Fe3O4 nanoparticles on ATP nanofibrils could avoid the magnetic aggregation of the Fe3O4 nanoparticles in polymer matrices. Furthermore, OA could adsorb onto the surfaces of the Fe3O4 nanoparticles on the ATP-Fe3O4 nanofibrils, improving efficiently the dispersibility of the ATP-Fe3O4 nanofibrils in the polystyrene matrices.
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