Changing the dielectric properties of BaTiO3 filled poly(phenylene oxide) composites by control of their structure

被引：7

作者：

Jang, Yong Kyun ^{[1
]}

Won, Jong Chan ^{[2
]}

Yoon, Ho Gyu ^{[1
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

[2] Korea Res Inst Chem Technol, Polymer Nanomat Lab, Taejon 305600, South Korea

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 05期

关键词：

barium compounds; dielectric polarisation; filled polymers; permittivity; polymer structure; polymerisation; BEHAVIOR;

D O I：

10.1063/1.3194155

中图分类号：

O59 [应用物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

The dielectric properties of BaTiO3 (BT) filled poly(phenylene oxide) (PPO) composites are investigated according to their structure, which is modified by filling the matrix with PPO-encapsulated BT particles and forming the semi-interpenetrating polymer network with triallyl isocyanurate (TAIC). Polymer encapsulation is most effective in lowering the permittivity and tan delta of the composite by suppressing the interface polarization. The copolymerization effect of TAIC is ignorable for a low dielectric matrix such as PPO. However, the dielectric values of the composites with low molecular weight-sized PPO, as the matrix, are decreased significantly by TAIC due to the constrained orientation polarization of the matrix.

引用

页数：3

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