TBU Publications
Repository of TBU Publications

Carbonization of aniline oligomers to electrically polarizable particles and their use in electrorheology

DSpace Repository

Show simple item record

dc.title Carbonization of aniline oligomers to electrically polarizable particles and their use in electrorheology en
dc.contributor.author Plachý, Tomáš
dc.contributor.author Sedlačík, Michal
dc.contributor.author Pavlínek, Vladimír
dc.contributor.author Trchová, Miroslava
dc.contributor.author Morávková, Zuzana
dc.contributor.author Stejskal, Jaroslav
dc.relation.ispartof Chemical Engineering Journal
dc.identifier.issn 1385-8947 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2014
utb.relation.volume 256
dc.citation.spage 398
dc.citation.epage 406
dc.type article
dc.language.iso en
dc.publisher Elsevier
dc.identifier.doi 10.1016/j.cej.2014.07.010
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S1385894714008778
dc.subject Aniline en
dc.subject Aniline oligomers en
dc.subject Carbonization en
dc.subject Dielectric spectroscopy en
dc.subject Electrorheology en
dc.subject Vibration spectroscopy en
dc.description.abstract Aniline oligomers prepared via the oxidation of aniline under alkaline conditions at various concentrations of ammonia were carbonized at 650. °C in inert atmosphere. Subsequently, the prepared particles were mixed with silicone oil and the suspensions were used as electrorheological fluids. After the carbonization, when the higher amount of ammonia was present during the synthesis, the transition of morphology of the particles from microspheres to two-dimensional plates was observed. This transition led to a significant increase of viscosity of silicone-oil suspensions in the presence of external electric field, while their field-off viscosity remained nearly unchanged. Thus, the carbonization had the desired effect on the treated particles leading to extremely high electrorheological efficiency of the suspensions based on such particles. The highest electrorheological efficiency was achieved for the suspension based on carbonized particles prepared in 0.2. M ammonia. The dielectric spectroscopy was used as an evaluative tool of electrorheological performance of suspensions, and data correspond well with the obtained results from electrorheological experiments. © 2014 Elsevier B.V. en
utb.faculty University Institute
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1003836
utb.identifier.obdid 43871791
utb.identifier.scopus 2-s2.0-84905266550
utb.identifier.wok 000341558400042
utb.identifier.coden CMEJA
utb.source j-scopus
dc.date.accessioned 2014-11-06T13:30:49Z
dc.date.available 2014-11-06T13:30:49Z
dc.description.sponsorship Internal Grant Agency of Tomas Bata University [IGA/FT/2014/017]; Czech Science Foundation [P205/12/0911, 13-08944S]; Operational Program Research and Development for Innovations; European Regional Development Fund (ERDF); national budget of the Czech Republic, within the framework of the Centre of Polymer Systems project [CZ.1.05/2.1.00/03.0111]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Plachý, Tomáš
utb.contributor.internalauthor Sedlačík, Michal
utb.contributor.internalauthor Pavlínek, Vladimír
Find Full text

Files in this item

Show simple item record