NONLINEAR DIELECTRIC AND CONDUCTIVE SPECTRA OF POLYMERS

被引:6
作者
FURUKAWA, T
机构
[1] Department of Chemistry, Faculty of Science, Science University of Tokyo, 162
来源
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1993年 / 70-1卷
关键词
D O I
10.1002/masy.19930700121
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Nonlinear complex permittivities have been measured as a function of frequency for various polar polymers by applying a sinusoidal electric field and detecting higher harmonic dielectric responses. It is shown that the Debye relaxation of the linear permittivity accompanies the third-order nonlinear relaxation represented by epsilon3*=DELTAepsilon3/(1+iomegatau3)3 in accord with phenomenological prediction. Combinations of relaxation strengths, DELTAepsilon1 and DELTAepsilon3, allow estimates of the saturation polarization as well as the moment and density of equivalent dipoles comprising the relaxation process. Analogous measurements and analysis have been extended to examine the nonlinear conductive spectra of ion-conducting polymers.
引用
收藏
页码:183 / 192
页数:10
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