Magnetite nanoparticles are synthesized by thermal decomposition of Fe(acac)3 and subsequently coated with a silica shell exploiting a water-in-oil synthetic procedure. The as-produced nanopowder is mixed with a photocurable hyperbranched resin and the polymerization process is studied by means of real-time FTIR (RT-FTIR). Owing to the presence of the silica shell, the photocuring ability of the systems containing core-shell structures is highly improved compared with that of the formulations filled with bare magnetite nanoparticles, allowing the efficient polymerization of a 100 μm-thick film loaded with an unprecedented 8 vol% of magnetic filler.
UV-cured transparent magnetic polymer nanocomposites / Nardi, T; Sangermano, M; Leterrier, Y; Allia, P; Tiberto, PAOLA MARIA; Manson, Jae. - In: POLYMER. - ISSN 0032-3861. - 54:17(2013), pp. 4472-4479. [10.1016/j.polymer.2013.06.052]
UV-cured transparent magnetic polymer nanocomposites
TIBERTO, PAOLA MARIA;
2013
Abstract
Magnetite nanoparticles are synthesized by thermal decomposition of Fe(acac)3 and subsequently coated with a silica shell exploiting a water-in-oil synthetic procedure. The as-produced nanopowder is mixed with a photocurable hyperbranched resin and the polymerization process is studied by means of real-time FTIR (RT-FTIR). Owing to the presence of the silica shell, the photocuring ability of the systems containing core-shell structures is highly improved compared with that of the formulations filled with bare magnetite nanoparticles, allowing the efficient polymerization of a 100 μm-thick film loaded with an unprecedented 8 vol% of magnetic filler.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
