Electrorheological properties of suspensions of monodispersed micron-sized polyaniline composite particles

被引：5
|
作者：
Jun, JB
Lee, CH
Kim, JW
Suh, KD [1 ]
机构：
[1] Hanyang Univ, Coll Engn, Div Chem Engn, Seoul 133791, South Korea
[2] Pacific Corp R&D Ctr, Cosmet Res Inst, Yongin Si 449900, Kyunggi Do, South Korea
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2002年 / 40卷 / 11期
关键词：
conducting polymers; electrorheology; macroporous polymers; monodispersed particles; viscoelastic properties;
D O I：
10.1002/polb.10177
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Monodispersed micron-sized polyaniline (PANi) composite particles were synthesized by chemically oxidative polymerization of aniline in the presence of functional porous polymer particles. The formation of the PANi-coated composite particles was confirmed by scanning electron microscopy. Electrorheological (ER) properties of the monosized composite particle suspensions were then investigated under different DC electric fields by altering the particle characteristics. The ER effect of the PANi composite suspensions was largely dependent on the composition ratio (PANi loading), the particle conductivity, and the particle concentration. Dynamic oscillation measurements revealed that the applied electric field induced the viscoelastic property of the ER suspensions by generating the chain structures of the suspended particles. (C) 2002 Wiley Periodicals, Inc.
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页码：1163 / 1170
页数：8
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