Optical and Thermal Stability of Oligofluorene/Rubber Luminescent Blend
| Autor: | Laura Oliveira Péres, Camila Gouveia Barbosa, Roselena Faez |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Sociology and Political Science
Clinical Biochemistry 02 engineering and technology Fluorene 010402 general chemistry 01 natural sciences Biochemistry chemistry.chemical_compound Polyfluorene Natural rubber Polymer chemistry Thermal stability Nitrile rubber Spectroscopy chemistry.chemical_classification Spin coating Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Thermogravimetry Clinical Psychology chemistry visual_art visual_art.visual_art_medium 0210 nano-technology Law Social Sciences (miscellaneous) |
| Zdroj: | Journal of fluorescence. 26(5) |
| ISSN: | 1573-4994 |
| Popis: | This paper proposes to obtain homogeneous and stable blends of oligo(9,9-dioctylfluorene)-co-phenylene (OF), a conjugated oligomer with strong tendency of formation of excimers in the solid state, and nitrile rubber (NBR). This rubber protection reduces the formation of polymer excimers in the films. The fluorene oligomer was synthesized via Suzuki reaction and incorporated in the nitrile rubber. The films were formed by spin coating and casting techniques on the proportions of 1, 5, 10, 20 and 50 % (w/w) of OF in the nitrile rubber (NBR). The structural, optical and thermal properties of the films were evaluated with infrared, UV-Vis, fluorescence and thermogravimetry, respectively. The nitrile rubber proved to be essential for the preparation of homogeneous and stable films, since it was not possible to obtain films with only fluorene using the above-mentioned techniques. Furthermore, luminescent properties of OF are unchanged and the excimers formation in the solid state decrease suggesting the efficiency of nitrile rubber as the matrix for making films. |
| Databáze: | OpenAIRE |
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