Enhanced electrorheology of conducting polyaniline confined in MCM-41 channels.
A composite material of a silica-based mesoporous molecular sieve, MCM-41, with conducting polyaniline (PANI) inside the uniformly aligned one-dimensional channels (PANI/MCM-41) was prepared and its nanocomposite formation was confirmed through an electrical conductivity measurement. This nanocomposite particle was adopted for a dispersed phase in electrorheological (ER) fluids, and the ER property was measured using a Couette-type rotational rheometer equipped with a high voltage generator. Suspension of PANI/MCM-41 showed ER properties more enhanced than those of MCM-41 or PANI alone as a result of the anisotropic polarization of the PANI/MCM-41 nanocomposite.
Cho
Min S
MS
Department of Polymer Science and Engineering, Inha University, Incheon, 402-751, Korea.
Choi
Hyoung J
HJ
Ahn
Wha-Seung
WS
D000814:Aniline Compounds / Q000737:chemistry*; D004553:Electric Conductivity; D004563:Electrochemistry; D044085:Microfluidics / Q000379:methods*; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D016062:Porosity; D012821:Silanes / Q000737:chemistry*; D013499:Surface Properties
D000814:Aniline Compounds; D012821:Silanes; C503620:aminopropyl-Si MCM-41; C416807:polyaniline