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Statements

Subject Item
n2:RIV%2F61389013%3A_____%2F11%3A00358506%21RIV12-AV0-61389013
rdf:type
n15:Vysledek skos:Concept
dcterms:description
The transport of charge carriers and the thermal diffusivity were studied on a set of polyaniline (emeraldine) samples that were compressed at various pressures, 50–1000 MPa. Marked correlations between the plots of compression pressure dependence of the electrical resistivity, the thermal diffusivity and the sample density were observed. This study has demonstrated that in order to obtain comparable data on samples prepared by compression of polymeric powders it is necessary to use sufficiently high pressure. In the case of polyaniline powder, the pressure should be higher than 400 MPa. The values of the thermal diffusivity measured on polyaniline salt and its respective base indicate that charge carriers are not dominant in a heat-transport mechanism; only less than ten per cent of the thermal diffusion in pressed polyaniline samples can be eventually attributed to charge carriers. The transport of charge carriers and the thermal diffusivity were studied on a set of polyaniline (emeraldine) samples that were compressed at various pressures, 50–1000 MPa. Marked correlations between the plots of compression pressure dependence of the electrical resistivity, the thermal diffusivity and the sample density were observed. This study has demonstrated that in order to obtain comparable data on samples prepared by compression of polymeric powders it is necessary to use sufficiently high pressure. In the case of polyaniline powder, the pressure should be higher than 400 MPa. The values of the thermal diffusivity measured on polyaniline salt and its respective base indicate that charge carriers are not dominant in a heat-transport mechanism; only less than ten per cent of the thermal diffusion in pressed polyaniline samples can be eventually attributed to charge carriers.
dcterms:title
The influence of compression pressure on transport properties of polyaniline The influence of compression pressure on transport properties of polyaniline
skos:prefLabel
The influence of compression pressure on transport properties of polyaniline The influence of compression pressure on transport properties of polyaniline
skos:notation
RIV/61389013:_____/11:00358506!RIV12-AV0-61389013
n15:predkladatel
n17:ico%3A61389013
n3:aktivita
n7:Z n7:S
n3:aktivity
S, Z(AV0Z40500505), Z(MSM0021620834)
n3:cisloPeriodika
13
n3:dodaniDat
n8:2012
n3:domaciTvurceVysledku
n4:2524147
n3:druhVysledku
n10:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
204356
n3:idVysledku
RIV/61389013:_____/11:00358506
n3:jazykVysledku
n9:eng
n3:klicovaSlova
conducting polymer; polyaniline; conductivity
n3:klicoveSlovo
n14:polyaniline n14:conductivity n14:conducting%20polymer
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[8AA6A7C02200]
n3:nazevZdroje
Journal of Materials Chemistry
n3:obor
n13:CD
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n8:2011
n3:svazekPeriodika
21
n3:tvurceVysledku
Stejskal, Jaroslav Křivka, I. Varga, M. Rudajevová, A. Prokeš, J.
n3:wos
000288450200041
n3:zamer
n6:AV0Z40500505 n6:MSM0021620834
s:issn
0959-9428
s:numberOfPages
8
n12:doi
10.1039/c0jm03087b