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Streicher M, Stamp CH, Kluth MD, Ripp A, Calvino C. Harnessing the Photoperformance of N-Methyl-Quinolinone for Gated Photo-Driven Cyclability and Reversible Photoligation. Macromol Rapid Commun 2024:e2400474. [PMID: 39096154 DOI: 10.1002/marc.202400474] [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: 06/27/2024] [Indexed: 08/05/2024]
Abstract
[2π + 2π]-photocycloadditions and their ability to trigger controlled and reversible photoligation through disparate wavelengths provide an attractive platform to unlock advanced functionalities in soft materials. Yet, among the limited amount of functional motifs enabling reversible photoreactions, cyclability is often overlooked due to poor reaction yield and orthogonality. In this study, the advantageous photocharacteristics of the previously underexplored N-methyl-quinolinone photoresponsive motif are leveraged to create a covalent gated system, enabling controlled formation and cleavage of covalent bonds on demand. A systematic evaluation of individual cycloadditions and reversions on the molecular scale, including reaction rates, conversions, and photoproducts, allows identification of the required conditions for generating controlled photoreactions with a remarkable degree of cyclability; while, maintaining high reaction yields. Ultimately, these controlled and cyclable reactions are translated to a macromolecular scale, showcasing a comparable performance in initiating reversible photoligation, as observed at the molecular level. In addition, it is also shown that this progressive methodology can be leveraged to gain a comprehensive understanding of cyclability and clarify the factors contributing to its decreasing yield. Overall, unlocking the potential of quinolinone derivatives through this step-by-step approach lays the foundation for the development of highly controlled and responsive polymer materials with unprecedented potential.
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Affiliation(s)
- Moritz Streicher
- Cluster of Excellence livMatS, FIT-Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg im Breisgau, Georges-Köhler-Allee 105, D-79110, Freiburg, Germany
| | - Claas-Hendrik Stamp
- Cluster of Excellence livMatS, FIT-Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg im Breisgau, Georges-Köhler-Allee 105, D-79110, Freiburg, Germany
| | - Marco Dante Kluth
- Department of Microsystems Engineering (IMTEK), University of Freiburg im Breisgau, Georges-Köhler-Allee 102, D-79110, Freiburg, Germany
| | - Alexander Ripp
- Cluster of Excellence livMatS, FIT-Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg im Breisgau, Georges-Köhler-Allee 105, D-79110, Freiburg, Germany
| | - Céline Calvino
- Cluster of Excellence livMatS, FIT-Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg im Breisgau, Georges-Köhler-Allee 105, D-79110, Freiburg, Germany
- Department of Microsystems Engineering (IMTEK), University of Freiburg im Breisgau, Georges-Köhler-Allee 102, D-79110, Freiburg, Germany
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Michenfelder RT, Pashley‐Johnson F, Guschin V, Delafresnaye L, Truong VX, Wagenknecht H, Barner‐Kowollik C. Photochemical Action Plots Map Orthogonal Reactivity in Photochemical Release Systems. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2402011. [PMID: 38852174 PMCID: PMC11304248 DOI: 10.1002/advs.202402011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 05/03/2024] [Indexed: 06/11/2024]
Abstract
The wavelength-by-wavelength resolved photoreactivity of two photo-caged carboxylic acids, i. e. 7-(diethylamino)-coumarin- and 3-perylene-modified substrates, is investigated via photochemical action plots. The observed wavelength-dependent reactivity of the chromophores is contrasted with their absorption profile. The photochemical action plots reveal a remarkable mismatch between the maximum reactivity and the absorbance. Through the action plot data, the study is able to uncover photochemical reactivity maxima at longer and shorter wavelengths, where the molar absorptivity of the chromophores is strongly reduced. Finally, the laser experiments are translated to light emitting diode (LED) irradiation and show efficient visible-light-induced release in a near fully wavelength-orthogonal, sequence-independent fashion (λLED1 = 405 nm, λLED2 = 505 nm) with both chromophores in the same reaction solution. The herein pioneered wavelength orthogonal release systems open an avenue for releasing two different molecular cargos with visible light in a fully orthogonal fashion.
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Affiliation(s)
- Rita T. Michenfelder
- School of Chemistry and PhysicsCentre for Materials ScienceQueensland University of Technology (QUT)2 George StBrisbaneQLD4000Australia
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz‐Haber‐Weg 676131KarlsruheGermany
- Institute of NanotechnologyKarlsruhe Institute of Technology (KIT)Hermann‐von‐Helmholtz‐Platz 176344Eggenstein‐LeopoldshafenGermany
| | - Fred Pashley‐Johnson
- School of Chemistry and PhysicsCentre for Materials ScienceQueensland University of Technology (QUT)2 George StBrisbaneQLD4000Australia
- Polymer Chemistry Research GroupCentre of Macromolecular Chemistry (CMaC) and Laboratory of Organic SynthesisDepartment of Organic and Macromolecular ChemistryFaculty of SciencesGhent UniversityKrijgslaan 281‐S4Ghent9000Belgium
| | - Viktor Guschin
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz‐Haber‐Weg 676131KarlsruheGermany
- Institute of NanotechnologyKarlsruhe Institute of Technology (KIT)Hermann‐von‐Helmholtz‐Platz 176344Eggenstein‐LeopoldshafenGermany
| | - Laura Delafresnaye
- School of Chemistry and PhysicsCentre for Materials ScienceQueensland University of Technology (QUT)2 George StBrisbaneQLD4000Australia
| | - Vinh X. Truong
- Institute of Sustainability for ChemicalsEnergy and Environment (ISCE2)Agency for Science, Technology and Research (A*STAR)1 Pesek Round, Jurong IslandSingapore627833Republic of Singapore
| | - Hans‐Achim Wagenknecht
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz‐Haber‐Weg 676131KarlsruheGermany
| | - Christopher Barner‐Kowollik
- School of Chemistry and PhysicsCentre for Materials ScienceQueensland University of Technology (QUT)2 George StBrisbaneQLD4000Australia
- Institute of NanotechnologyKarlsruhe Institute of Technology (KIT)Hermann‐von‐Helmholtz‐Platz 176344Eggenstein‐LeopoldshafenGermany
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Upadhyay C, Ojha U. Carbohydrate-Based Reprocessable and Healable Covalent Adaptable Biofoams. Macromol Rapid Commun 2024:e2400239. [PMID: 38794989 DOI: 10.1002/marc.202400239] [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: 04/16/2024] [Revised: 05/20/2024] [Indexed: 05/27/2024]
Abstract
Polymeric foams derived from bio-based resources and capable of self-healing and recycling ability are of great demand to fulfill various applications and address environmental concerns related to accumulation of plastic wastes. In this article, a set of polyester-based covalent adaptable biofoams (CABs) synthesized from carbohydrates and other bio-derived precursors under catalyst free conditions to offer a sustainable alternative to conventional toxic isocyanate-based polyurethane foams is reported. The dynamic β-keto carboxylate linkages present in these biofoams impart self-healing ability and recyclability to these samples. These CABs display adequate tensile properties especially compressive strength (≤123 MPa) and hysteresis behavior. The CABs swiftly stress relax at 150 °C and are reprocessable under similar temperature conditions. These biofoams have displayed potential for use as attachment on solar photovoltaics to augment the output efficiency. These CABs with limited swellability in polar protic solvents and adequate mechanical resilience are suitable for other commodity applications.
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Affiliation(s)
- Chandan Upadhyay
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology, Jais, Amethi, Uttar Pradesh, 229304, India
| | - Umaprasana Ojha
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology, Jais, Amethi, Uttar Pradesh, 229304, India
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Jatni, Khordha, Odisha, 752050, India
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Carroll JA, Pashley-Johnson F, Frisch H, Barner-Kowollik C. Photochemical Action Plots Reveal Red-shifted Wavelength-dependent Photoproduct Distributions. Chemistry 2024; 30:e202304174. [PMID: 38267371 DOI: 10.1002/chem.202304174] [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: 12/14/2023] [Revised: 01/15/2024] [Accepted: 01/24/2024] [Indexed: 01/26/2024]
Abstract
Photochemical action plots are a powerful tool for mapping photochemical reaction outcomes wavelength-by-wavelength. Typically, they map either the depletion of a reactant or the formation of a specific product as a function of wavelength. Herein, we exploit action plots to simultaneously map the formation of several photochemical products from a single chromophore. We demonstrate that the wavelength-resolved mapping of two reaction products formed during the irradiation of a chalcone species not only shows wavelength dependence - exhibiting the typical strong red-shift of the photochemical reactivity compared to the absorbance spectrum of the chromophore - but also a strong wavelength selectivity with remarkably different product distributions resulting from different irradiation wavelengths.
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Affiliation(s)
- Joshua A Carroll
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
| | - Fred Pashley-Johnson
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Department of Organic and Macromolecular Chemistry, Polymer Chemistry Research Group, Centre of Macromolecular Chemistry (CMaC), Faculty of Science, Ghent University, Krijgslaan 281 (S4-Bis), 9000, Ghent, Belgium
| | - Hendrik Frisch
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
| | - Christopher Barner-Kowollik
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Insitute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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