000148912 001__ 148912
000148912 005__ 20250123152145.0
000148912 0247_ $$2doi$$a10.1039/c4nj02012j
000148912 0248_ $$2sideral$$a90332
000148912 037__ $$aART-2015-90332
000148912 041__ $$aeng
000148912 100__ $$0(orcid)0000-0002-0922-5615$$aOriol Langa, Luis Teodoro$$uUniversidad de Zaragoza
000148912 245__ $$aPhotoresponsive supramolecular gels based on amphiphiles with azobenzene and maltose or polyethyleneglycol polar head
000148912 260__ $$c2015
000148912 5060_ $$aAccess copy available to the general public$$fUnrestricted
000148912 5203_ $$aIn the context of exploring new materials based on low molecular weight amphiphiles, we prepared a new series of photoresponsive gelators with azobenzene as photosensitive unit, D-maltose or poly(ethylene glycol) (PEG) as polar head, and L-phenylalanine as linker. The gelation properties of the final amphiphiles and the intermediate molecules have been studied in different solvents. Organogels are obtained for all of them, except for compound with PEG16 polar head. Gelation in polar solvents, as DMSO, was achieved. The morphology of supramolecular structures was characterized by electronic microscopy. The chiro-optical properties of gels, due to the supramolecular chirality imposed by the molecular chirality, were also studied. The modifications under irradiation have been monitored by UV-visible spectroscopy and electronic circular dichroism (ECD). Two of the obtained materials showed a gel–sol transition by irradiation with UV light and further thermal cis–trans isomerization to gel state at room temperature.
000148912 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2011-27978-C02-01
000148912 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000148912 590__ $$a3.277$$b2015
000148912 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b49 / 162 = 0.302$$c2015$$dQ2$$eT1
000148912 592__ $$a0.935$$b2015
000148912 593__ $$aChemistry (miscellaneous)$$c2015$$dQ1
000148912 593__ $$aMaterials Chemistry$$c2015$$dQ1
000148912 593__ $$aCatalysis$$c2015$$dQ2
000148912 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000148912 700__ $$0(orcid)0000-0001-9488-6698$$aClemente, M.J.$$uUniversidad de Zaragoza
000148912 700__ $$0(orcid)0000-0003-1141-5933$$aTejedor, R.M.$$uUniversidad de Zaragoza
000148912 700__ $$0(orcid)0000-0003-1378-0571$$aRomero, P.$$uUniversidad de Zaragoza
000148912 700__ $$aFitremann, J.
000148912 7102_ $$12013$$2765$$aUniversidad de Zaragoza$$bDpto. Química Orgánica$$cÁrea Química Orgánica
000148912 773__ $$g39, 5 (2015), 4009-4019$$pNew j. chem.$$tNEW JOURNAL OF CHEMISTRY$$x1144-0546
000148912 8564_ $$s914210$$uhttps://zaguan.unizar.es/record/148912/files/texto_completo.pdf$$yPostprint
000148912 8564_ $$s2617564$$uhttps://zaguan.unizar.es/record/148912/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000148912 909CO $$ooai:zaguan.unizar.es:148912$$particulos$$pdriver
000148912 951__ $$a2025-01-23-14:46:56
000148912 980__ $$aARTICLE