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Effect of hydrophilicity of polyaniline particles on their electrorheology: Steady flow and dynamic behaviour
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SYSNO ASEP 0342648 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effect of hydrophilicity of polyaniline particles on their electrorheology: Steady flow and dynamic behaviour Author(s) Stěnička, M. (CZ)
Pavlínek, V. (CZ)
Sáha, P. (CZ)
Blinova, Natalia V. (UMCH-V)
Stejskal, Jaroslav (UMCH-V) RID, ORCID, SAI
Quadrat, Otakar (UMCH-V)Source Title Journal of Colloid and Interface Science. - : Elsevier - ISSN 0021-9797
Roč. 346, č. 1 (2010), s. 236-240Number of pages 5 s. Language eng - English Country US - United States Keywords polyaniline ; electrorheology ; steady shear Subject RIV BK - Fluid Dynamics R&D Projects GA202/09/1626 GA ČR - Czech Science Foundation (CSF) IAA400500905 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000277132700035 DOI 10.1016/j.jcis.2010.02.046 Annotation Electrorheological properties of suspensions are considerably affected by hydrophilicity of suspension particles. As a model material, polyaniline base powder protonated with sulfamic, tartaric, or perfluorooctanesulfonic acids provided particles of various hydrophilicity. The experiments revealed that, in the absence of electric field, due to a good compatibility of hydrophobic polyaniline particles with silicone-oil medium, their interactions were limited and the viscosity of suspension was low. When the electric field was applied, the rigidity of the polarized chain structure of the particles increased and, consequently, viscosity increased as well. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2011
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