Dielectric spectroscopy of polypyrrole-γ-Fe2O3 composites

被引：13
|
作者：
Murugendrappa, M. V.
Prasad, M. V. N. Ambika [1 ]
机构：
[1] Gulbarga Univ, Dept Mat Sci & Phys, Gulbarga 585106, Karnataka, India
[2] GM Inst Technol, Dept Phys, Davangere 577006, Karnataka, India
来源：
MATERIALS RESEARCH BULLETIN | 2006年 / 41卷 / 07期
关键词：
composites; CONDUCTING POLYMERS; POLYPYRROLE FILMS; CAPACITORS; BIOSENSORS; BATTERY;
D O I：
10.1016/j.materresbull.2005.12.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In situ polymerization of pyrrole was carried out in the presence of gamma-Fe2O3 (FE) to synthesize polypyrrole-gamma-Fe2O3 composites (PPy/FE) by chemical oxidation method. The PPy/FE composites have been synthesized with various compositions viz., 10, 20, 30, 40 and 50 wt.% of gamma-Fe2O3 in pyrrole. The AC conductivity was studied in the frequency range 10(2)-10(7) Hz. The dielectric behaviour was also investigated in the frequency range 10(2)-10(7) Hz. The dimensions of gamma-Fe2O3 particles in the matrix have a greater influence on the conductivity values and the observed dielectric values. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1364 / 1369
页数：6
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