About: Structure and Piezoelectricity of Poly (styrene-co-acrylonitrile) Copolymer Doped with Different Dyes

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The influence of the organic ionic salt crystal 4-N,N-dimethylamino-4-N-methyl-stilbazolium tosylate (DAST) and 4-(N,N-dimethylamino)-4-nitrostilbene (DANS) dyes on structure, and piezoelectricity of Poly (styrene-co-acrylonitrile) (SAN) copolymer has been studied by several techniques. X-ray diffraction and optical microscopy reveal crystalline phase in the doped copolymer and the degree of crystallinity increases either by increasing dye's concentration or by applying stress to the films. Fourier Transform Infrared spectroscopy (FTIR) spectra showed that the intensity of the vibrational band of SAN copolymer increased with the dye concentration, indicating the interaction between dyes and the copolymer. The dynamic glass transition temperature (T-g), probed by Thermally Stimulated Depolarization Current (TSDC), related to the segmental mode of SAN (at approximate to 373K) is slightly shifted to lower temperature by adding DANS, while it shifts to higher temperature upon adding DAST (approximate to 390K). Suppression and enhancing in the current intensity of SAN is related to the dipolar strength of dyes. The influence of the organic ionic salt crystal 4-N,N-dimethylamino-4-N-methyl-stilbazolium tosylate (DAST) and 4-(N,N-dimethylamino)-4-nitrostilbene (DANS) dyes on structure, and piezoelectricity of Poly (styrene-co-acrylonitrile) (SAN) copolymer has been studied by several techniques. X-ray diffraction and optical microscopy reveal crystalline phase in the doped copolymer and the degree of crystallinity increases either by increasing dye's concentration or by applying stress to the films. Fourier Transform Infrared spectroscopy (FTIR) spectra showed that the intensity of the vibrational band of SAN copolymer increased with the dye concentration, indicating the interaction between dyes and the copolymer. The dynamic glass transition temperature (T-g), probed by Thermally Stimulated Depolarization Current (TSDC), related to the segmental mode of SAN (at approximate to 373K) is slightly shifted to lower temperature by adding DANS, while it shifts to higher temperature upon adding DAST (approximate to 390K). Suppression and enhancing in the current intensity of SAN is related to the dipolar strength of dyes. (en)
Title	Structure and Piezoelectricity of Poly (styrene-co-acrylonitrile) Copolymer Doped with Different Dyes Structure and Piezoelectricity of Poly (styrene-co-acrylonitrile) Copolymer Doped with Different Dyes (en)
skos:prefLabel	Structure and Piezoelectricity of Poly (styrene-co-acrylonitrile) Copolymer Doped with Different Dyes Structure and Piezoelectricity of Poly (styrene-co-acrylonitrile) Copolymer Doped with Different Dyes (en)
skos:notation	RIV/68081723:_____/13:00435864!RIV15-AV0-68081723
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0068), P(EE2.3.20.0214)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Elhadidy, Hassan
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 fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	108389
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/13:00435864
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	DANS; DAST; Piezo- and pyro- electricity; SAN; structure; TDSC (en)
http://linked.open.../riv/klicoveSlovo	structure DAST SAN DANS Piezo- and pyro- electricity TDSC
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[677874E9B56E]
http://linked.open...i/riv/nazevZdroje	Polymer-Plastics Technology and Engineering
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Human Resources Development in the research of physical and material properties of emerging, newly developed and applied engineering materials Central european institute of technology
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	52
http://linked.open...iv/tvurceVysledku	Elhadidy, Hassan Abdelhamid, M. I. Aboelwafa, A. M. Habib, A.
http://linked.open...ain/vavai/riv/wos	000323999700015
issn	0360-2559
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1080/03602559.2013.814676

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