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Statements

Subject Item
n2:RIV%2F67985858%3A_____%2F14%3A00424405%21RIV15-AV0-67985858
rdf:type
skos:Concept n14:Vysledek
dcterms:description
Water-borne reduced graphene oxide (rGO)/polymer composites have been synthesized by emulsion mixing and in situ polymerization. The main challenge is to synthesize colloidally stable hybrid latexes that are able to produce composite fi lms by water evaporation at standard atmospheric conditions for their possible application as electrically conductive coatings. The selected polymer system is composed from poly(methyl metacrylate/butyl acrylate) in 50/50 wt% ratio in order to obtain glass transition temperature of the final film lower than the room temperature. The polymer is joined with rGO stable dispersions, which are prepared by reduction of GO in the presence of polyvynil pyrrolidone (PVP). The latex blends are composed of weakly bonded rGO platelets with polymer particles by the presence of PVP, whereas the covalent bonds between the polymers and the rGO in the in situ hybrid latexes are established. Both procedures result in stable hybrid latexes, from which layered composites are obtained by slow water evaporation. The composite blends present better self-organization of rGO, tendency of segregated network formation, and electrically conductive properties. The in situ composites present decreased aggregation of rGO, uniformly distributed rGO in the polymeric matrix and lower conductivity. Water-borne reduced graphene oxide (rGO)/polymer composites have been synthesized by emulsion mixing and in situ polymerization. The main challenge is to synthesize colloidally stable hybrid latexes that are able to produce composite fi lms by water evaporation at standard atmospheric conditions for their possible application as electrically conductive coatings. The selected polymer system is composed from poly(methyl metacrylate/butyl acrylate) in 50/50 wt% ratio in order to obtain glass transition temperature of the final film lower than the room temperature. The polymer is joined with rGO stable dispersions, which are prepared by reduction of GO in the presence of polyvynil pyrrolidone (PVP). The latex blends are composed of weakly bonded rGO platelets with polymer particles by the presence of PVP, whereas the covalent bonds between the polymers and the rGO in the in situ hybrid latexes are established. Both procedures result in stable hybrid latexes, from which layered composites are obtained by slow water evaporation. The composite blends present better self-organization of rGO, tendency of segregated network formation, and electrically conductive properties. The in situ composites present decreased aggregation of rGO, uniformly distributed rGO in the polymeric matrix and lower conductivity.
dcterms:title
Comparison of the Emulsion Mixing and In Situ Polymerization Techniques for Synthesis of Water- Borne Reduced Graphene Oxide/Polymer Composites: Advantages and Drawbacks Comparison of the Emulsion Mixing and In Situ Polymerization Techniques for Synthesis of Water- Borne Reduced Graphene Oxide/Polymer Composites: Advantages and Drawbacks
skos:prefLabel
Comparison of the Emulsion Mixing and In Situ Polymerization Techniques for Synthesis of Water- Borne Reduced Graphene Oxide/Polymer Composites: Advantages and Drawbacks Comparison of the Emulsion Mixing and In Situ Polymerization Techniques for Synthesis of Water- Borne Reduced Graphene Oxide/Polymer Composites: Advantages and Drawbacks
skos:notation
RIV/67985858:_____/14:00424405!RIV15-AV0-67985858
n4:aktivita
n16:I
n4:aktivity
I
n4:cisloPeriodika
1
n4:dodaniDat
n10:2015
n4:domaciTvurceVysledku
n12:9914927
n4:druhVysledku
n17:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n15:predkladatel
n4:idSjednocenehoVysledku
8226
n4:idVysledku
RIV/67985858:_____/14:00424405
n4:jazykVysledku
n13:eng
n4:klicovaSlova
polymerization; composite films; latex blends
n4:klicoveSlovo
n11:composite%20films n11:polymerization n11:latex%20blends
n4:kodStatuVydavatele
DE - Spolková republika Německo
n4:kontrolniKodProRIV
[1234CC602DEA]
n4:nazevZdroje
Particle & Particle Systems Characterization
n4:obor
n8:CA
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
4
n4:rokUplatneniVysledku
n10:2014
n4:svazekPeriodika
31
n4:tvurceVysledku
Fajgar, Radek Tomovska, R. Arzac, A. Leal, G. L.
n4:wos
000331900100015
s:issn
0934-0866
s:numberOfPages
9
n6:doi
10.1002/ppsc.201300286