UV-cured transparent magnetic polymer nanocomposites

详细信息    查看全文

• 作者：Tommaso Nardi ; Marco Sangermano ; Yves Leterrier ; Paolo Allia ; Paola Tiberto ; Jan-Anders E. M?nson
• 关键词：Core/shell nanoparticles ; Magnetic materials ; Photopolymerization
• 刊名：Polymer
• 出版年：2013
• 出版时间：2 August, 2013
• 年：2013
• 卷：54
• 期：17
• 页码：4472-4479
• 全文大小：2358 K

文摘

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?¦Ìm-thick film loaded with an unprecedented 8 vol % of magnetic filler.