Effect of ionic pendent groups on a polyaniline-based electrorheological fluid

被引：43

作者：

Cho, MS

Choi, HJ ^{[1
]}

To, KW

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

[2] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1998年 / 19卷 / 06期

关键词：

D O I：

10.1002/marc.1998.030190601

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Particles of semiconducting polyaniline and a copolyaniline bearing ionic substituents were synthesized. Electrorheological (ER) fluids using these particles were compared with each other with respect to their rheological properties and dielectric spectra. In the steady shear rheological experiment conducted at 3 kV/mm (DC) at 25 degrees C, the copolymer system showed higher stress than the polyaniline system in the whole shear rate region. This result was interpreted in terms of the conductivities of the particles and their dielectric spectra. Especially, the different behavior in the high shear rate region can be related to the electrical relaxation phenomena observed in the dielectric spectra.

引用

页码：271 / 273

页数：3

共 11 条

[1] MATERIALS AND MECHANISMS IN ELECTRORHEOLOGY [J].