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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F04%3A00011739%21RIV%2F2005%2FGA0%2F223105%2FN
rdf:type
skos:Concept n13:Vysledek
dcterms:description
Vliv elektrického pole na dipóly v polymerních kompozitech Orientation of two bipolar compounds embeddedin polymer composites was studied. Poly(methylmethacrylate) (PMMA) dissolved in acetone was dopedwith a cobaltborane derivative of 1,2-dimethylimidazole andpolystyrene (PS) dissolved in toluene was doped with the3-(1,2-dimethyl imidazole)-borane. To orient the dipoles, thecomposites were exposed to external electrical field: PMMAcomposite at the temperature of glass transition (Tg) and PScomposite during evaporation of the toluene solvent. Thedegree of dipole orientation was estimated by the change inrelative permittivity ( ) of the resulting composite film. Thedependence of the on the temperature, frequency, voltage,and dipole concentration was studied. It was found that thedipole#s distribution in the composite .lm was not homogenous.At the Tg, the dipoles in PMMA became oriented byexternal direct electrical .eld and the orientation was conservedafter cooling to lower temperatures. In a PS-basedcomposite, the significant permittivity increase was observ Orientation of two bipolar compounds embeddedin polymer composites was studied. Poly(methylmethacrylate) (PMMA) dissolved in acetone was dopedwith a cobaltborane derivative of 1,2-dimethylimidazole andpolystyrene (PS) dissolved in toluene was doped with the3-(1,2-dimethyl imidazole)-borane. To orient the dipoles, thecomposites were exposed to external electrical field: PMMAcomposite at the temperature of glass transition (Tg) and PScomposite during evaporation of the toluene solvent. Thedegree of dipole orientation was estimated by the change inrelative permittivity ( ) of the resulting composite film. Thedependence of the on the temperature, frequency, voltage,and dipole concentration was studied. It was found that thedipole#s distribution in the composite .lm was not homogenous.At the Tg, the dipoles in PMMA became oriented byexternal direct electrical .eld and the orientation was conservedafter cooling to lower temperatures. In a PS-basedcomposite, the significant permittivity increase was observ
dcterms:title
Effect of Electrical Field on Dipoles in Polymer Effect of Electrical Field on Dipoles in Polymer Vliv elektrického pole na dipóly v polymerních kompozitech
skos:prefLabel
Effect of Electrical Field on Dipoles in Polymer Effect of Electrical Field on Dipoles in Polymer Vliv elektrického pole na dipóly v polymerních kompozitech
skos:notation
RIV/60461373:22310/04:00011739!RIV/2005/GA0/223105/N
n3:strany
40-45
n3:aktivita
n4:Z n4:P
n3:aktivity
P(GA102/01/1324), Z(MSM 223100002)
n3:cisloPeriodika
91
n3:dodaniDat
n14:2005
n3:domaciTvurceVysledku
n8:7085486 n8:2029057 n8:6950418
n3:druhVysledku
n12:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
561870
n3:idVysledku
RIV/60461373:22310/04:00011739
n3:jazykVysledku
n15:eng
n3:klicovaSlova
dependence of the on the temperature, frequency, voltage,and dipole concentration was studied. It was found that thepoly(methyl methacrylate);polystyrene;composites;dipoles orientation;permittivity
n3:klicoveSlovo
n5:composites n5:frequency n5:dipoles%20orientation n5:and%20dipole%20concentration%20was%20studied.%20It%20was%20found%20that%20thepoly%28methyl%20methacrylate%29 n5:polystyrene n5:dependence%20of%20the%20on%20the%20temperature n5:permittivity n5:voltage
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[F54AE493108D]
n3:nazevZdroje
Journal of Applied Polymer Science
n3:obor
n18:CD
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
6
n3:projekt
n9:GA102%2F01%2F1324
n3:rokUplatneniVysledku
n14:2004
n3:svazekPeriodika
neuveden
n3:tvurceVysledku
Gardášová, Romana Rybka, Vladimír Plešek, J. Hnatowicz, Vladimír Červená, J. Švorčík, Václav
n3:zamer
n16:MSM%20223100002
s:issn
0021-8995
s:numberOfPages
6
n17:organizacniJednotka
22310