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Título: | Maltose-based gelators having azobenzene as light-sensitive unit |
Autor: | Clemente, María J. CSIC ORCID; Tejedor, Rosa M. CSIC ORCID; Romero, Pilar CSIC ORCID ; Fitremann, Juliette; Oriol, Luis CSIC ORCID | Fecha de publicación: | 2012 | Editor: | Royal Society of Chemistry (UK) | Citación: | RSC Advances 2(30): 11419-11431 (2012) | Resumen: | Three light-sensitive amphiphiles, based on azobenzene, have been synthesized as supramolecular gelators. A hydrophobic chain with an azobenzene group incorporated at different positions was click coupled to a maltose polar head by a copper(i)-catalysed azide-alkyne [3 + 2] cycloaddition. The liquid crystalline and gel properties of these azo-amphiphilic materials have been studied. Two of these azo-gelators containing maltose give rise to stable gels in water or in a mixture of water and DMSO at room temperature. The chiral supramolecular assemblies of these gelators have been characterised by NMR, electron microscopy and circular dichroism (CD). The light-response of azo-amphiphiles in supramolecular gels has been studied. Also azo-gels, which contained mixtures of the azo-amphiphilic compounds and a similar structural hydrogelator, have been investigated. © 2012 The Royal Society of Chemistry. | URI: | http://hdl.handle.net/10261/73775 | DOI: | 10.1039/C2RA21506C | Identificadores: | doi: 10.1039/C2RA21506C issn: 2046-2069 |
Aparece en las colecciones: | (ICMA) Artículos |
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