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Viscoelastic characterization of semiconducting dodecylbenzenesulfonic acid doped polyaniline electrorheological suspensions
Author(s) -
Kim Seong G.,
Kim Ji W.,
Cho Min S.,
Choi Hyoung J.,
Jhon Myung S.
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20010103)79:1<108::aid-app130>3.0.co;2-8
Subject(s) - polyaniline , viscoelasticity , electrorheological fluid , rheometer , materials science , silicone oil , rheology , composite material , emulsion polymerization , polymerization , polymer chemistry , chemical engineering , polymer , electric field , physics , quantum mechanics , engineering
Dodecylbenzenesulfonic acid (DBSA)‐doped polyaniline particles were synthesized via emulsion polymerization, and electrorheological (ER) fluids were prepared by dispersing the synthesized polyaniline particles in silicone oil. The viscoelastic properties of DBSA‐doped polyaniline/silicone oil ER systems were examined using a vertical oscillation rheometer (VOR), which is designed for the rheological measurement of ER fluids, with a high voltage generator. Viscoelastic data obtained from the VOR were compared with those obtained from a commercial Physica rotational rheometer. The data from VOR were quite reliable in a broad range of both strain and frequency. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 108–114, 2001