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Gajardo G, Córdoba A, Forero A, Fuentealba D, Ramírez O, Bonardd S, Toro-Labbé A, Leiva A, Díaz DD, Saldías C. Photoswitching/back-switching assessment of biobased cellulose acetate/azobenzene handleable films under visible-light LED irradiation. Int J Biol Macromol 2023:124883. [PMID: 37201890 DOI: 10.1016/j.ijbiomac.2023.124883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/04/2023] [Accepted: 05/11/2023] [Indexed: 05/20/2023]
Abstract
The light-induced processes performed by photofunctional polymer films are crucial aspects of developing integrated 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.
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Affiliation(s)
- G Gajardo
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - A Córdoba
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - A Forero
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - D Fuentealba
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - O Ramírez
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile; Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain; Departamento de Química Organica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - S Bonardd
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain; Departamento de Química Organica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - A Toro-Labbé
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - A Leiva
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - D Díaz Díaz
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain; Departamento de Química Organica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile; Institut für Organische Chemie, Universitat Regensburg, Universitatsstr. 31, 93053 Regensburg, Germany.
| | - C Saldías
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile.
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Herrera C, Pinto‐Neira J, Fuentealba D, Sepúlveda C, Rosenkranz A, García‐Fierro JL, González M, Escalona N. Effect of Ni Metal Content on Emulsifying Properties of Ni/CNTox Catalysts for Catalytic Conversion of Furfural in Pickering Emulsions. ChemCatChem 2020. [DOI: 10.1002/cctc.202001045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- C. Herrera
- Departamento de Química física Facultad de Química y Farmacia Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860 Macul, Santiago Chile
- ANID – Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process towards Sustainable Chemistry (CSC), Av. Vicuña Mackenna 4860 Macul, Santiago Chile
| | - J. Pinto‐Neira
- Departamento de Química física Facultad de Química y Farmacia Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860 Macul, Santiago Chile
- ANID – Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process towards Sustainable Chemistry (CSC), Av. Vicuña Mackenna 4860 Macul, Santiago Chile
| | - D. Fuentealba
- Departamento de Química física Facultad de Química y Farmacia Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860 Macul, Santiago Chile
| | - C. Sepúlveda
- ANID – Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process towards Sustainable Chemistry (CSC), Av. Vicuña Mackenna 4860 Macul, Santiago Chile
- Facultad de Ciencias Químicas Universidad de Concepción Chile
- Casilla 160 C Universidad de Concepción Concepción Chile
| | - A. Rosenkranz
- Departamento de Ingeniería Química Biotecnología y Materiales Facultad de Ciencias Físicas y Matemáticas Universidad de Chile Av. Beaucheff 851 Santiago Chile
| | - J. L. García‐Fierro
- Instituto de Catálisis y Petroleoquímica CSIC C/Marie Curie 2, Cantoblanco Madrid Spain
| | - M. González
- Departamento de Ingeniería y gestión de la construcción Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860 Macul, Santiago Chile
| | - N. Escalona
- Departamento de Química física Facultad de Química y Farmacia Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860 Macul, Santiago Chile
- ANID – Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process towards Sustainable Chemistry (CSC), Av. Vicuña Mackenna 4860 Macul, Santiago Chile
- Departamento de Ingeniería Química y Bioprocesos Escuela de Ingeniería Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860 Macul, Santiago Chile
- Unidad de Desarrollo Tecnológico Universidad de Concepción Avenida Cordillera N° 3624, Parque Industrial Coronel Coronel, Concepciòn Chile
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