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AuthorIlciova, Marketa
AuthorMrlik, Miroslav
AuthorSedlacek, Tomas
AuthorChorvat, Dusan
AuthorKrupa, Igor
AuthorSlouf, Miroslav
AuthorKoynov, Kaloian
AuthorMosnacek, Jaroslav
Available date2016-04-18T08:10:06Z
Publication Date2014-01
Publication NamePolymer (United Kingdom)
CitationMarkéta Ilčíková, Miroslav Mrlík, Tomáš Sedláček, Dušan Chorvát, et al. "Viscoelastic and photo-actuation studies of composites based on polystyrene-grafted carbon nanotubes and styrene-b-isoprene-b-styrene block copolymer" (2014) Polymer (United Kingdom), 55 (1), pp. 211-218.
AbstractPhotoactuating composites based on the linear triblock copolymer polystyrene-b-polyisoprene-b-polystyrene (SIS) were prepared by incorporation of polystyrene-modified multiwalled carbon nanotubes (MWCNT-PS). Modification of MWCNT was performed by surface-initiated atom transfer radical polymerization (SI ATRP) of styrene. The presence of the polystyrene chains on the MWCNT surface facilitated their dispersion in the SIS matrix. Improved interactions of the modified MWCNT-PS compared to neat MWCNT were confirmed by dynamic mechanical analysis. The activation energy of glass transition of the polystyrene phase in the MWCNT-PS/SIS composite increased significantly compared to the neat SIS matrix, while the incorporation of neat MWCNT to the SIS matrix disturbed the physical cross-linking of the SIS and degraded its elastic properties. The photo-actuation ability of the MWCNT-PS/SIS composite was proved using atomic force microscopy.
SponsorThe authors thank the Slovak Research and Development Agency APVV through Grant APVV-0109-10, Centre of Excellence SAS for Functionalized Multiphase Materials (FUN-MAT), the European Commission within 7th Frame Program (project NOMS, contract no. 228916) and DAAD project 50755038 “Fluorescent labels for optimization of graphene distribution in graphene/polymer nano-composite materials with improved properties” for their financial support. MM and TS also thank the Operational Program Research and Development for Innovations co-funded by the European Regional Development Fund and National Budget of Czech Republic, within the framework of project Centre of Polymer Systems (CZ.1.05/2.1.00/03.0111) for their support. Electron microscopy was performed with financial support through grant TACRTE01020118.
PublisherElsevier Ltd.
SubjectGrafting from surface
SubjectSmart materials
SubjectThermoplastic elastomers
TitleViscoelastic and photo-actuation studies of composites based on polystyrene-grafted carbon nanotubes and styrene-b-isoprene-b-styrene block copolymer
Issue Number1
Volume Number55

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