UV-cured transparent magnetic polymer nanocomposites

被引:31
作者
Nardi, Tommaso [1 ]
Sangermano, Marco [2 ]
Leterrier, Yves [1 ]
Allia, Paolo [2 ]
Tiberto, Paola [3 ]
Manson, Jan-Anders E. [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Lab Technol Composites & Polymeres LTC, CH-1015 Lausanne, Switzerland
[2] Politecn Torino, DISAT, I-10129 Turin, Italy
[3] INRIM, Electromagnetism Div, I-10135 Turin, Italy
基金
瑞士国家科学基金会;
关键词
Core/shell nanoparticles; Magnetic materials; Photopolymerization; HAMAKER CONSTANTS; FACILE SYNTHESIS; NANOPARTICLES; COATINGS;
D O I
10.1016/j.polymer.2013.06.052
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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 mu m-thick film loaded with an unprecedented 8 vol% of magnetic filler. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4472 / 4479
页数:8
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