Photoswitching/back-switching assessment of biobased cellulose acetate/ azobenzene handleable films under visible-light LED irradiation

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dc.article.number124883
dc.article.number124883
dc.contributor.authorGajardo Gálvez, Gonzalo
dc.contributor.authorCordoba Manrique, Alexander
dc.contributor.authorForero Girón, Angie Carolay
dc.contributor.authorFuentealba Patino, Denis Alberto
dc.contributor.authorRamírez Contador, Oscar Guillermo
dc.contributor.authorBonardd, Sebastián
dc.contributor.authorToro Labbe, Alejandro Miguel
dc.contributor.authorLeiva Campusano, Ángel Rodrigo
dc.contributor.authorDíaz Díaz, David
dc.contributor.authorSaldias Barros, Cesar Antonio
dc.date.accessioned2024-03-15T12:03:50Z
dc.date.available2024-03-15T12:03:50Z
dc.date.issued2023
dc.description.abstractThe light-induced processes performed by photofunctional polymer films are crucial aspects of developing in-tegrated energy storage devices properly. Herein, we report the preparation, characterization, and study of the optical properties of a series of biobased cellulose acetate/azobenzene (CA/Az1) handleable films at different compositions. The photoswitching/back-switching behavior of the samples was investigated using varied LED irradiation sources. Additionally, poly(ethylene glycol) (PEG) was deposited onto cellulose acetate/azobenzene films to study the back-switching process's effect and nature in the fabricated films. Interestingly, the melting enthalpies of PEG before and after being irradiated with blue LED light were 2.5 mJ and 0.8 mJ, respectively. Conveniently, FTIR and UV-visible spectroscopy, thermogravimetry (TGA), contact angle, differential scanning calorimetry (DSC), polarized light microscopy (PLM), and atomic force microscopy (AFM) were used for the characterization of the sample films. Complementarily, theoretical electronic calculations provided a consistent approach to the energetic change in the dihedral angles and non-covalent interaction for the trans and cis isomer in the presence of cellulose acetate monomer. The results of this study revealed that CA/Az1 films are viable photoactive materials displaying handleability attributes with potential uses in harvesting, converting, and storing light energy.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.ijbiomac.2023.124883
dc.identifier.eissn1879-0003
dc.identifier.issn0141-8130
dc.identifier.urihttps://doi.org/10.1016/j.ijbiomac.2023.124883
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/84445
dc.identifier.wosidWOS:001014976600001
dc.information.autoruc; Gajardo Galvez Gonzalo; ; 103343
dc.information.autorucEscuela de Química; Córdoba Manrique, Alexander; S/I; 1051726
dc.information.autorucEscuela de Química; Forero Girón, Angie Carolay; S/I; 1050653
dc.information.autorucEscuela de Química; Fuentealba Patino, Denis Alberto; 0000-0003-4798-7204; 160255
dc.information.autorucEscuela de Química; Ramírez Contador, Oscar Guillermo; S/I; 215090
dc.information.autorucEscuela de Química; Toro Labbé, Alejandro Miguel; 0000-0001-9906-2153; 99827
dc.information.autorucEscuela de Química; Leiva Campusano, Ángel Rodrigo; S/I; 88381
dc.information.autorucEscuela de Química; Saldias Barros, Cesar Antonio; S/I; 125097
dc.language.isoen
dc.nota.accesoContenido completo
dc.publisherELSEVIER
dc.revistaINTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
dc.rightsacceso abierto
dc.rights.licenseCreative Commons Attribution License (CC BY)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectFilms
dc.subjectPhotoswitching
dc.subjectThermal isomerization
dc.subject.ddc510
dc.subject.deweyMatemática física y química
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titlePhotoswitching/back-switching assessment of biobased cellulose acetate/ azobenzene handleable films under visible-light LED irradiation
dc.typeartículo
dc.volumen242
sipa.codpersvinculados103343
sipa.codpersvinculados1051726
sipa.codpersvinculados1050653
sipa.codpersvinculados160255
sipa.codpersvinculados215090
sipa.codpersvinculados99827
sipa.codpersvinculados88381
sipa.codpersvinculados125097
sipa.trazabilidadWOS;2023-07-30
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