PHOTO-LUMINESCENT POLYMERIC AEROGEL WITH CONTENT OF CARBON NANOSTRUCTURES TO BE USED IN LIGHT SOURCES

The invention relates to a process for preparing a photo-luminescent aerogel with emission in the blue area of the visible spectrum. According to the invention, the process consists of the complexing reaction between YCland N-hydroxysuccinimide in aqueous medium while stirring, at the temperature of...

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Bibliographische Detailangaben
Hauptverfasser: PEPTU CĂTĂLINA ANIŞOARA, HORLESCU PETRONELA, BĂCĂIŢĂ ELENA SIMONA, AGOP MARICEL, STAN CORNELIU SERGIU
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a process for preparing a photo-luminescent aerogel with emission in the blue area of the visible spectrum. According to the invention, the process consists of the complexing reaction between YCland N-hydroxysuccinimide in aqueous medium while stirring, at the temperature of 70...80°C for 2...3 h, the complex solution is frozen at the temperature of -30...-40°C and lyophilized, after which the precursor in solid state is gradually heated up to 189...195°C in inert medium, while being maintained for 6 min, the reaction mass is suddenly cooled, the Carbon Dots-type nanostructures doped with Yare subjected to a process of photo-polymerization at the temperature of -14°C followed by lyophilization, in order to introduce the doped nanostructures in polymeric matrices of poly(2-hydroxyethylmethacrylate), to result in a photo-luminescent aerogel with tubular geometry adequate to the use in lighting sources with gas discharge.