About: Characterization of polystyrene and doped polymethylmethacrylate thin layers

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Jsou studovány dielektivické a optické vlastnosti tenkých vrstev PS a PMMA připravovaných z roztoku spinových povlaků. (cs) About 1 mu m thick films of polystyrene (PS) and polymethylmethacrylate (PMMA) were prepared from solutions using spin-coating method. The PMMA films were doped with diphenylsulfoxide (DS) up to 45 wt%. Glass transition temperature (T-g) of doped PMMA films was determined by DSC technique and relative permittivity (epsilon) as a function of the sample temperature was determined from capacitance measurement. The dependence of polarization (P) on electric field (E) and the temperature was measured using a standard Sawyer-Tower circuit. Spectral dependence of film refractive index was measured using a refractometer. The glass transition temperature T-g of PMMA/DS composite was found to be decreasing function of the DS concentration. Relative permittivity epsilon of unpolar PS is lower than that of polar PMMA. The PS permittivity does not depend on the sample temperature. For PMMA the permittivity is increasing function of both, DS dopant concentration and sample temperature. About 1 mu m thick films of polystyrene (PS) and polymethylmethacrylate (PMMA) were prepared from solutions using spin-coating method. The PMMA films were doped with diphenylsulfoxide (DS) up to 45 wt%. Glass transition temperature (T-g) of doped PMMA films was determined by DSC technique and relative permittivity (epsilon) as a function of the sample temperature was determined from capacitance measurement. The dependence of polarization (P) on electric field (E) and the temperature was measured using a standard Sawyer-Tower circuit. Spectral dependence of film refractive index was measured using a refractometer. The glass transition temperature T-g of PMMA/DS composite was found to be decreasing function of the DS concentration. Relative permittivity epsilon of unpolar PS is lower than that of polar PMMA. The PS permittivity does not depend on the sample temperature. For PMMA the permittivity is increasing function of both, DS dopant concentration and sample temperature. (en)
Title	Characterization of polystyrene and doped polymethylmethacrylate thin layers Characterization of polystyrene and doped polymethylmethacrylate thin layers (en) Charakteristiky tenkých vrstev polystyrenu a dopovaného polymethylmet krystalu (cs)
skos:prefLabel	Characterization of polystyrene and doped polymethylmethacrylate thin layers Characterization of polystyrene and doped polymethylmethacrylate thin layers (en) Charakteristiky tenkých vrstev polystyrenu a dopovaného polymethylmet krystalu (cs)
skos:notation	RIV/61389005:_____/05:00307936!RIV08-AV0-61389005
http://linked.open.../vavai/riv/strany	761;765
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/03/0514), Z(AV0Z10480505)
http://linked.open...iv/cisloPeriodika	11-12
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Hnatowicz, Vladimír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav jaderné fyziky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	515027
http://linked.open...ai/riv/idVysledku	RIV/61389005:_____/05:00307936
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dielectrical properties (en)
http://linked.open.../riv/klicoveSlovo	dielectrical properties
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[BC968F685E50]
http://linked.open...i/riv/nazevZdroje	Journal of Materials Science-Materials in Electronics
http://linked.open...in/vavai/riv/obor	BG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Modified polymers for tissue engineering
http://linked.open...UplatneniVysledku	2005
http://linked.open...v/svazekPeriodika	16
http://linked.open...iv/tvurceVysledku	Hnatowicz, Vladimír Švorčík, V. Hrabovská, E. Podgrabinski, T.
http://linked.open...n/vavai/riv/zamer	Jaderná fyzika a příbuzné obory v základním, aplikovaném a interdisciplinárním výzkumu
issn	0957-4522
number of pages	5 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Characterization of polystyrene and doped polymethylmethacrylate thin layers

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