About: Porphyrin Migration and Aggregation in a Poly( methylmethacrylate) Matrix

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The aging of thin polymer films is interesting for the development of nonlinear optical media. In this study, the optical properties of porphyrin-doped poly(methylmethacrylate) (PMMA) films are investigated before and after annealing. Both absorption and luminescence spectroscopies were used to characterize the changes that occurred during the thermal treatment. The surface and bulk characteristics of the doped films were also measured using atomic force microscopy, X-ray-induced photoelectron spectra, and DSC. We found that the aging of the thin polymer films led the porphyrin molecules to diffuse in the direction of the polymer surface. This led to the random formation of porphyrin aggregates on the surface, followed by absorption band shift and little luminescence quenching. These results suggest that porphyrin-doped PMMA films could be used as long-term stable active optical materials. The aging of thin polymer films is interesting for the development of nonlinear optical media. In this study, the optical properties of porphyrin-doped poly(methylmethacrylate) (PMMA) films are investigated before and after annealing. Both absorption and luminescence spectroscopies were used to characterize the changes that occurred during the thermal treatment. The surface and bulk characteristics of the doped films were also measured using atomic force microscopy, X-ray-induced photoelectron spectra, and DSC. We found that the aging of the thin polymer films led the porphyrin molecules to diffuse in the direction of the polymer surface. This led to the random formation of porphyrin aggregates on the surface, followed by absorption band shift and little luminescence quenching. These results suggest that porphyrin-doped PMMA films could be used as long-term stable active optical materials. (en)
Title	Porphyrin Migration and Aggregation in a Poly( methylmethacrylate) Matrix Porphyrin Migration and Aggregation in a Poly( methylmethacrylate) Matrix (en)
skos:prefLabel	Porphyrin Migration and Aggregation in a Poly( methylmethacrylate) Matrix Porphyrin Migration and Aggregation in a Poly( methylmethacrylate) Matrix (en)
skos:notation	RIV/60461373:22310/14:43897893!RIV15-GA0-22310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(FR-TI3/797), P(GPP108/11/P337), P(GPP108/11/P840)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Švorčík, Václav Lyutakov, Oleksiy Siegel, Jakub Kalachyova, Yevgeniya Tůma, Jiří
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	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	37654
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/14:43897893
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	COMPLEXES; ABSORPTION; OPTICAL-PROPERTIES; WATER-SOLUBLE PORPHYRINS (en)
http://linked.open.../riv/klicoveSlovo	COMPLEXES ABSORPTION OPTICAL-PROPERTIES WATER-SOLUBLE PORPHYRINS
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[060B7B048160]
http://linked.open...i/riv/nazevZdroje	Polymer Composites
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Příprava a charakterizace Au nanostruktur Study of preparation and properties of micro- and nano scale patterned polymer surface *Investigation and development of technology of the polymer optical selective components for informatics and sensors
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	35
http://linked.open...iv/tvurceVysledku	Lyutakov, Oleksiy Siegel, Jakub Tůma, Jiří Švorčík, Václav Prajzler, Václav Kalachyova, Yevgeniya
http://linked.open...ain/vavai/riv/wos	000332623800005
issn	0272-8397
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/pc.22709
http://localhost/t...ganizacniJednotka	22310

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