ELECTROMAGNETIC ABSORPTION OF POLYANILINES AT MICROWAVE-FREQUENCIES

被引：16

作者：

DECHANTERAC, H ^{[1
]}

RODUIT, P ^{[1
]}

BELHADJTAHAR, N ^{[1
]}

FOURRIERLAMER, A ^{[1
]}

DJIGO, Y ^{[1
]}

AEIYACH, S ^{[1
]}

LACAZE, PC ^{[1
]}

机构：

[1] UNIV PARIS 07,CNRS,URA 34,INST TOPOL & DYNAM SYST,F-75221 PARIS 05,FRANCE

来源：

SYNTHETIC METALS | 1992年 / 52卷 / 02期

关键词：

D O I：

10.1016/0379-6779(92)90306-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chemically synthesized emeraldine base polymer was treated with HCI to yield different levels of protonation corresponding to ad, values ranging from 10(-7) to 10(2) S/m. For different sigma(dc) values, broad-band absorption of electromagnetic waves was measured in the range 1 MHz-20 GHz at room temperature. A quasi linear relationship was observed between log sigma and log omega above 100 MHz, confirming the power law sigma = omega(s) (0 < s < 1). For the most conductive samples (sigma(dc) = 10(2) S/m, s = 0) corresponding to highly protonated polymers, the conductivity was shown to be constant and independent of frequency. With d.c. conductivities lower than 10(-1) S/m, s increased from zero to unity.

引用

页码：183 / 192

页数：10

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