期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 5, 页码 3477-3482出版社
AMER CHEMICAL SOC
DOI: 10.1021/am4056276
关键词
phosphonic acid; barium titanate; nanocomposite; surface-initiated polymerization; dielectrics; capacitors
资金
- Office of Naval Research [N000141110462]
A phosphonic acid is used as a surface initiator for the growth of polystyrene and polymethylmethacrylate (PMMA) from barium titanate (BTO) nanoparticles through atom transfer radical polymerization with activators regenerated by electron transfer. This results in the barium titanate cores embedded in the grafted polymer. The one-component system, PMMA-grafted-BTO, achieves a maximum extractable energy density of 2 J/cm(3) at a field strength of similar to 220 V/mu m, which exhibits a 2-fold increase compared to that of the composite without covalent attachment or the neat polymer. Such materials have potential applications in hybrid capacitors due to the high permittivity of the nanoparticles and the high breakdown strength, mechanical flexibility, and ease of processability due to the organic polymer. The synthesis, processing, characterization, and testing of the materials in capacitors are discussed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据