AN INVESTIGATION ON THE DIELECTRIC PROPERTIES OF POLYANILINE-BASED NANOCOMPOSITE

被引：0
|
作者：
Jiang, J. [1 ]
Ai, L. H.
机构：
[1] Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637002, Sichuan, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2010年 / 24卷 / 15期
关键词：
Conducting polymers; nanocomposite; dielectric properties; IN-SITU POLYMERIZATION; MAGNETIC-PROPERTIES; NANOPARTICLES; FABRICATION;
D O I：
10.1142/S0217984910024055
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Polyaniline/LiNi(0.5)Gd(0.08)Fe(1.92)O(4) nanocomposite was synthesized by an in-situ polymerization of aniline in the presence of LiNi(0.5)Gd(0.08)Fe(1.92)O(4) particles. The dielectric properties of the as-prepared polyaniline-based nanocomposite were inivestigated using an Agilent E4991A RF Impedance/Material Analyzer at room temperature in the frequency range from 1 MHz to 1 GHz. The real(epsilon') and imaginary part (epsilon '') of complex permittivity, and dissipation factor (tan delta) were found to be frequency-dependent, which decreased with increasing of frequency. It was shown that epsilon',epsilon '' and tan delta of the nanocomposite were lower than those of pristine polyaniline. In order to investigate the dielectric process in detail, the complex electric moulii derived from the complex permittivity were analyzed as a function of the frequency.
引用
收藏
页码：1669 / 1674
页数：6
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