Molybdenum and tungsten disulfides surface-modified with a conducting polymer, polyaniline, for application in electrorheology

Stejskal, Jaroslav; Mrlík, Miroslav; Plachý, Tomáš; Trchová, Miroslava; Kovářová, Jana; Li, Yu

dc.title	Molybdenum and tungsten disulfides surface-modified with a conducting polymer, polyaniline, for application in electrorheology	en
dc.contributor.author	Stejskal, Jaroslav
dc.contributor.author	Mrlík, Miroslav
dc.contributor.author	Plachý, Tomáš
dc.contributor.author	Trchová, Miroslava
dc.contributor.author	Kovářová, Jana
dc.contributor.author	Li, Yu
dc.relation.ispartof	Reactive and Functional Polymers
dc.identifier.issn	1381-5148 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued	2017
utb.relation.volume	120
dc.citation.spage	30
dc.citation.epage	37
dc.type	article
dc.language.iso	en
dc.publisher	Elsevier
dc.identifier.doi	10.1016/j.reactfunctpolym.2017.09.004
dc.relation.uri	https://www.sciencedirect.com/science/article/pii/S1381514817301748
dc.subject	conducting polymer	en
dc.subject	conductivity	en
dc.subject	electrorheology	en
dc.subject	MoS2	en
dc.subject	polyaniline	en
dc.subject	WS2	en
dc.description.abstract	Molybdenum and tungsten sulfides are semiconducting materials with flake-like morphology. Their applicability in electrorheological suspensions was enabled by the coating with a conducting polymer, polyaniline, after its conversion to non-conducting polyaniline base. For instance, the conductivity of tungsten sulfide, 0.056 S cm−1, increased to 0.98 S cm−1 after coating with polyaniline, and was conveniently reduced to 6.3 × 10−6 S cm−1 after conversion to polyaniline base. Such approach reduces the potential current drifts in electrorheological suspensions and allows for the application of sulfides in electrorheology. The optical microscopy demonstrated the formation of particle chains in silicone-oil suspensions after application of electric field. The electrorheological performance was assessed by the measurement of viscosity on the shear rate in the absence and in the presence of electric field and it is discussed on the bases of dielectric spectra. © 2017 Elsevier B.V.	en
utb.faculty	University Institute
dc.identifier.uri	http://hdl.handle.net/10563/1007496
utb.identifier.obdid	43877164
utb.identifier.scopus	2-s2.0-85029604758
utb.identifier.wok	000413883800004
utb.identifier.coden	RFPOF
utb.source	j-scopus
dc.date.accessioned	2017-10-16T14:43:39Z
dc.date.available	2017-10-16T14:43:39Z
dc.description.sponsorship	17-04109S, GACR, Grantová Agentura České Republiky; LO1504, MŠMT, Ministerstvo Školství, Mládeže a Tělovýchovy
dc.description.sponsorship	Czech Science Foundation [17-04109S]; Ministry of Education, Youth and Sports of the Czech Republic (NPU I) [LO1504]
utb.ou	Centre of Polymer Systems
utb.contributor.internalauthor	Mrlík, Miroslav
utb.contributor.internalauthor	Plachý, Tomáš
utb.fulltext.affiliation	Jaroslav Stejskal a,⁎ , Miroslav Mrlík b , Tomáš Plachý b , Miroslava Trchová a , Jana Kovářová a , Yu Li a,c a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic b Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic c Department of Applied Chemistry, School of Science, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China ⁎ Corresponding author. E-mail address: stejskal@imc.cas.cz (J. Stejskal).
utb.fulltext.dates	Received 2 August 2017 Received in revised form 30 August 2017 Accepted 14 September 2017 Available online 18 September 2017
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utb.fulltext.sponsorship	The authors thank the Czech Science Foundation (17-04109S) for financial support. M.M. and T.P. gratefully acknowledge the support of the Ministry of Education, Youth and Sports of the Czech Republic (NPU I, LO1504).
utb.scopus.affiliation	Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague 6, Czech Republic; Centre of Polymer Systems, Tomas Bata University in Zlin, Zlin, Czech Republic; Department of Applied Chemistry, School of Science, Xi'an Jiaotong University, Xi'an, China