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Core‐Shell Structured Monodisperse Poly(3,4‐Ethylenedioxythiophene)/Poly(Styrenesulfonic Acid) Coated Polystyrene Microspheres and Their Electrorheological Response
Author(s) -
Liu Ying Dan,
Kim Ji Eun,
Choi Hyoung Jin
Publication year - 2011
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201100160
Subject(s) - materials science , dispersity , pedot:pss , polystyrene sulfonate , polystyrene , electrorheological fluid , silicone oil , electric field , composite material , magnetorheological fluid , rheometer , chemical engineering , polymer chemistry , rheology , polymer , magnetic field , physics , quantum mechanics , engineering
We report the successful synthesis of transparent thin film of conducting poly(3,4‐ethylenedioxythiophene)/poly(styrenesulfonic acid) (PEDOT/PSS) coated monodisperse polystyrene (PS) microspheres via a simple physical adsorption route in an aqueous media and their electrorheological (ER) application under an applied electric field. Due to the insulating PS core, the PEDOT/PSS wrapped PS (PEDOT/PSS/PS) particles possess a low volume conductivity appropriately applied as ER active materials. Tested by a rotational rheometer under an applied electric field, the PEDOT/PSS/PS based ER fluid dispersed in a silicone oil shows a typical Bingham‐fluid behavior with increased yield stresses according to the increase of electric field strength.