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Coderch G, Cordoba A, Ramírez O, Bonardd S, Leiva A, Häring M, Díaz Díaz D, Saldias C. Effects of the Solvent Vapor Exposure on the Optical Properties and Photocatalytic Behavior of Cellulose Acetate/Perylene Free-Standing Films. Polymers (Basel) 2023; 15:2787. [PMID: 37447433 DOI: 10.3390/polym15132787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
The search to deliver added value to industrialized biobased materials, such as cellulose derivatives, is a relevant aspect in the scientific, technological and innovation fields at present. To address these aspects, films of cellulose acetate (CA) and a perylene derivative (Pr) were fabricated using a solution-casting method with two different compositions. Consequently, these samples were exposed to dimethylformamide (DMF) solvent vapors so that its influence on the optical, wettability, and topographical properties of the films could be examined. The results demonstrated that solvent vapor could induce the apparent total or partial preferential orientation/migration of Pr toward the polymer-air interface. In addition, photocatalytic activities of the non-exposed and DMF vapor-exposed films against the degradation of methylene blue (MB) in an aqueous medium using light-emitting diode visible light irradiation were comparatively investigated. Apparently, the observed improvement in the performance of these materials in the MB photodegradation process is closely linked to the treatment with solvent vapor. Results from this study have allowed us to propose the fabrication and use of the improved photoactivity "all-organic" materials for potential applications in dye photodegradation in aqueous media.
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Affiliation(s)
- Gustavo Coderch
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
| | - Alexander Cordoba
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
| | - Oscar Ramírez
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, S/N, 38206 La Laguna, Spain
| | - Sebastian Bonardd
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, S/N, 38206 La Laguna, Spain
| | - Angel Leiva
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
| | - Marleen Häring
- Institut für Organische Chemie, Universitat Regensburg, Universitatsstr. 31, 93053 Regensburg, Germany
| | - David Díaz Díaz
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, S/N, 38206 La Laguna, Spain
- Institut für Organische Chemie, Universitat Regensburg, Universitatsstr. 31, 93053 Regensburg, Germany
| | - Cesar Saldias
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
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Wolski K, Smenda J, Grobelny A, Dąbczyński P, Marzec M, Cernescu A, Wytrwal M, Bernasik A, Rysz J, Zapotoczny S. Surface engineering of mixed conjugated/polyelectrolyte brushes - Tailoring interface structure and electrical properties. J Colloid Interface Sci 2023; 634:209-220. [PMID: 36535159 DOI: 10.1016/j.jcis.2022.11.155] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022]
Abstract
HYPOTHESIS Mixed polymer brushes (MPBs) could be synthesized by surface dilution of homopolymer brushes and subsequent grafting of other type of chains in the formed voids. Nanophase separation and dynamics of surface-grafted chains could be tailored by modification of their molecular architecture. Mixed polyelectrolyte and conjugated chains contribute synergistically to tailor properties of the coating. EXPERIMENTS A new synthetic strategy that allowed spatially controlled grafting of poly(sodium 4-styrenesulfonate) chains (PSSNa) in close neighborhood of poly(3-methylthienyl methacrylate) (PMTM) brushes (precursors of the conjugated chains) using surface-initiated polymerizations was developed. The final mixed conjugated/polyelectrolyte brushes were prepared by template polymerization of pendant thiophene groups in PMTM chains. Surface dynamics and nanophase separation of MPBs were studied by nanoscale resolution IR imaging, SIMS profiling and AFM mapping in selective solvents. FINDINGS Unconjugated MPBs were shown to undergo vertical, and horizontal nanophase separation, while the size and shape of the nanodomains were dependent on molar ratio of the mixed chains and their relative lengths. Generation of the conjugated chains led to diminishing of nanophase separation thanks to stronger mutual interactions of conjugated PMTM and PSSNa (macromolecular mixing). The obtained systems demonstrated tunable interfacial structure and resistance switching phenomenon desired in construction of smart surfaces or memristive devices.
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Affiliation(s)
- Karol Wolski
- Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Joanna Smenda
- Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Krakow, Poland
| | - Anna Grobelny
- Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Krakow, Poland
| | - Paweł Dąbczyński
- Marian Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland
| | - Mateusz Marzec
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland
| | | | - Magdalena Wytrwal
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland
| | - Andrzej Bernasik
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland
| | - Jakub Rysz
- Marian Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland
| | - Szczepan Zapotoczny
- Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Krakow, Poland; Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland.
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Morphology Control in Organic Solar Cells. ENERGIES 2022. [DOI: 10.3390/en15155344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Organic solar cells (OSCs) are a kind of device that can convert light energy into electrical energy, they possess the advantages of being lightweight, flexible, processable printing, and large-area production, and they are an effective way to alleviate energy deficiency and environmental pollution [...]
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