Functional organogelators formed by liquid-crystal carbazole-containing bis-MPA dendrimers
| Autor: | Ana Omenat, Joaquín Barberá, José Luis Serrano, Ismael Gracia |
|---|---|
| Přispěvatelé: | Ministerio de Ciencia e Innovación (España), Ministerio de Economía y Competitividad (España), Diputación General de Aragón, European Commission |
| Rok vydání: | 2016 |
| Předmět: |
Thin layers
Materials science Carbazole General Chemical Engineering Mesogen Supramolecular chemistry 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Polymerization chemistry Liquid crystal Dendrimer Polymer chemistry Organic chemistry 0210 nano-technology |
| Zdroj: | Zaguán. Repositorio Digital de la Universidad de Zaragoza instname Digital.CSIC. Repositorio Institucional del CSIC |
| ISSN: | 2046-2069 |
| Popis: | Novel functional gelators with a dendritic structure based on flexible bis-MPA dendrons that combine mesogenic and carbazole moieties have been prepared. Both the precursory dendrons and the resulting codendrimers show rich supramolecular chemistry, exhibiting both liquid crystalline phases and gelling properties in several low-polarity organic solvents. The study of the self-assembly processes reveals that non-covalent weak interactions control the formation of the supramolecular gels. Due to the carbazole moieties, these gels show interesting electronic properties with an increased fluorescence emission arising from an aggregation-induced emission enhancement (AIEE) effect and electrochemical behaviour. Oxidative polymerisation has been proven to be effective for fixing the gel structure in thin layers of xerogels deposited on ITO electrodes. Financial support from the MINECO project CTQ2015-70174-P, and Diputación General de Aragón-Fondo Social Europeo (DGA-FSE) (Project E04) is gratefully acknowledged. I. G. acknowledges a MICINN-FPI fellowship. |
| Databáze: | OpenAIRE |
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