A facile approach for tuning optical and surface properties of novel biobased Alginate/POTE handleable films via solvent vapor exposure

Mendez-Lopez, M. and Ramos-Hernandez, A. and Moreno-Serna, V. and Bonardd, S. and Ramirez, O. and Silva, Hernan and Inostroza-Rivera, Ricardo and Diaz, D. Diaz and Leiva, A. and Saldias, C. (2021) A facile approach for tuning optical and surface properties of novel biobased Alginate/POTE handleable films via solvent vapor exposure. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 193. pp. 258-268. ISSN 0141-8130, 1879-0003

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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.

Item Type: Article
Uncontrolled Keywords: ACID 2-THIOPHENE-3-YL-ETHYL ESTER; CONDUCTING POLYMERS; DUAL DESCRIPTOR; NANOPARTICLES; CELLULOSE; FIBERS; BOX; Alginate films; Conducting polymer; Poly(octanoic acid 2-thiophen-3-yl-ethyl ester)
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. David Díaz Díaz
Depositing User: Dr. Gernot Deinzer
Date Deposited: 26 Sep 2022 08:15
Last Modified: 26 Sep 2022 08:15
URI: https://pred.uni-regensburg.de/id/eprint/47945

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