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Mendez-López M, Ramos-Hernández A, Moreno-Serna V, Bonardd S, Ramírez O, Silva H, Inostroza-Rivera R, Diaz DD, Leiva A, Saldías C. A facile approach for tuning optical and surface properties of novel biobased Alginate/POTE handleable films via solvent vapor exposure. Int J Biol Macromol 2021; 193:258-268. [PMID: 34655589 DOI: 10.1016/j.ijbiomac.2021.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/20/2021] [Accepted: 10/02/2021] [Indexed: 10/20/2022]
Abstract
Novel biobased films consisting of alginate blends with poly (octanoic acid 2-thiophen-3-yl-ethyl ester) (POTE), a conducting polymer, were prepared by solution casting, and their optical, morphological, thermal, and surface properties were studied. Using UV-visible spectroscopy, atomic force microscopy (AFM), and scanning electron microscopy (SEM), the effects of tetrahydrofuran solvent vapors on the optical properties and surface morphology of biobased films with different POTE contents were studied. Results indicate that morphological rearrangements of POTE take place during the process of solvent exposure. Specifically, the solvent vapor induced the formation of POTE small crystalline domains, which allows envisioning the potential of tuning UV-visible absorbance and wettability behavior of biobased films. Finally, theoretical electronic calculations (specifically frontier molecular orbitals analysis) provided consistent evidence on POTE's preferential orientation and selectivity toward the THF-vapor medium.
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Affiliation(s)
- M Mendez-López
- Departamento de Química y Biología, Universidad el Norte, km 5 vía Pto Colombia, P. O. Box 1569-51820, Barranquilla, Atlántico, Colombia
| | - A Ramos-Hernández
- Grupo de investigación Química Supramolecular Aplicada, Programa de Química, Facultad de Ciencias Básicas, Universidad del Atlántico, Cra 30# 8-49 Pto Colombia, Atlántico, Colombia
| | - V Moreno-Serna
- Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo de Polímeros, Chile
| | - S Bonardd
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez S/N, 38206 La Laguna, Tenerife, Spain; Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - O Ramírez
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - Hernán Silva
- Departamento de Estadística, Facultad de Matemáticas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ricardo Inostroza-Rivera
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - D Diaz Diaz
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez S/N, 38206 La Laguna, Tenerife, Spain; Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain; Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - A Leiva
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - C Saldías
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile.
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Jessop I, Albornoz J, Ramírez O, Durán B, Molero L, Bonardd S, Kortaberria G, Diaz Diaz D, Leiva A, Saldías C. Optical, morphological and photocatalytic properties of biobased tractable films of chitosan/donor-acceptor polymer blends. Carbohydr Polym 2020; 249:116822. [DOI: 10.1016/j.carbpol.2020.116822] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/03/2020] [Accepted: 07/23/2020] [Indexed: 12/16/2022]
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