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Schmallegger M, Grützmacher H, Gescheidt G. Bis(acyl)phosphine Oxides as Stoichiometric Photo‐Reductants for Copper Nanoparticle Synthesis: Efficiency and Kinetics. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Max Schmallegger
- Graz University of Technology: Technische Universitat Graz Institut of Physical and Theoretical Chemistry Stremayrgasse 9 8010 Graz AUSTRIA
| | - Hansjörg Grützmacher
- ETH Zürich: Eidgenossische Technische Hochschule Zurich Department of Chemistry and Applied Biosciences Vladimir-Prelog Weg 1 8093 Zürich SWITZERLAND
| | - Georg Gescheidt
- Graz University of Technology: Technische Universitat Graz Institute of Physical and Theoretical Chemistry Stremayrgasse 9 8010 Graz AUSTRIA
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Oprych D, Strehmel B. Mediated Generation of Conjugate Acid by UV and Blue Sensitizers with Upconversion Nanoparticles at 980 nm. Chemistry 2021; 27:4297-4301. [PMID: 33349989 PMCID: PMC7986751 DOI: 10.1002/chem.202005076] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/20/2020] [Indexed: 11/17/2022]
Abstract
NIR and UV exposure of systems comprising upconversion nanoparticles (UCNP) based on NaYF4:Tm/Yb@NaYF4, a sensitizer absorbing either in the blue or UV region, and an onium salt with weak coordinating anion resulted in formation of conjugate acid (con‐H+). That was namely Ivocerin (di(4‐methoxybenzoyl)diethylgermane), ITX (2‐iso‐propyl thioxanthone), anthracene, pyrene, rubrene, camphore quinone, and a strong fluorescent coumarin (1,1,6,6,8‐pentamethyl‐2,3,5,6‐tetrahyhdro‐1H,4H‐11‐oxa‐3a‐aza‐benzo[de]anthracene‐10‐one). Quantification occurred by treatment with Rhodamine B lactone whose color switched to intensive red after photolytic formation of con‐H+. Exposure with a NIR laser at 980 nm resulted in less con‐H+ compared to 395 nm where all sensitizers absorb radiation. UCNP did not mainly interfered formation of con‐H+. The different rates obtained in both experiments responsibly explain the failure and success to initiate polymerization of epoxides applying ether 980 nm or 395 nm excitation, respectively.
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Affiliation(s)
- Dennis Oprych
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 147798KrefeldGermany
| | - Bernd Strehmel
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 147798KrefeldGermany
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Kütahya C, Meckbach N, Strehmel V, Gutmann JS, Strehmel B. NIR Light-Induced ATRP for Synthesis of Block Copolymers Comprising UV-Absorbing Moieties. Chemistry 2020; 26:10444-10451. [PMID: 32343443 PMCID: PMC7496941 DOI: 10.1002/chem.202001099] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/23/2020] [Indexed: 11/12/2022]
Abstract
NIR exposure at 790 nm activated photopolymerization of monomers comprising UV-absorbing moieties by using [CuII /(TPMA)]Br2 (TPMA=tris(2-pyridylmethyl)amine) in the ppm range and an alkyl bromide as initiator. Some of them comprised structural elements selected either from those showing proton transfer or photocycloaddition upon UV excitation. Polymers obtained comprise living end groups serving as macroinitiator for controlled synthesis of block copolymers with relatively narrow molecular weight distributions. Chromatographic results indicated formation of block copolymers produced by this synthetic approach. Free-radical polymerization of monomers pursued for comparison exhibited the expected broader dispersity of molecular weight compared to photo-ATRP. Polymerization of these monomers by UV photo-ATRP failed on the contrary to NIR photo-ATRP demonstrating the UV-filter function of the monomers. This work conclusively provides a new approach for the polymerization of monomers comprising UV-absorbing moieties through photo-ATRP in the NIR region. This occurred in a simple and efficient pathway. However, studies also showed that not all monomers chosen successfully proceeded in the NIR photo-ATRP protocol.
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Affiliation(s)
- Ceren Kütahya
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 147798KrefeldGermany
| | - Nicolai Meckbach
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 147798KrefeldGermany
| | - Veronika Strehmel
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 3247798KrefeldGermany
| | - Jochen S. Gutmann
- Department of Physical ChemistryCenter of, Nanointegration (CENIDE)University of Duisburg-Essen45141EssenGermany
| | - Bernd Strehmel
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 147798KrefeldGermany
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Tasdelen MA, Lalevée J, Yagci Y. Photoinduced free radical promoted cationic polymerization 40 years after its discovery. Polym Chem 2020. [DOI: 10.1039/c9py01903k] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Free radical promoted cationic photopolymerization has been described with its historical background, main principles and usage in polymer synthesis.
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Affiliation(s)
- Mehmet Atilla Tasdelen
- Department of Polymer Engineering
- Faculty of Engineering
- Yalova University
- 77100 Yalova
- Turkey
| | - Jacques Lalevée
- Membre Honoraire de l'Institut Universitaire de France (IUF) (promotion 2011) Institut de Science des Matériaux de Mulhouse
- 68057 Mulhouse Cedex
- France
| | - Yusuf Yagci
- Istanbul Technical University
- Department of Chemistry
- 34469 Istanbul
- Turkey
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Yagci Y, Tasdelen MA, Jockusch S. Reduction of Cu(II) by photochemically generated phosphonyl radicals to generate Cu(I) as catalyst for atom transfer radical polymerization and azide-alkyne cycloaddition click reactions. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.06.068] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tasdelen MA, Yilmaz G, Iskin B, Yagci Y. Photoinduced Free Radical Promoted Copper(I)-Catalyzed Click Chemistry for Macromolecular Syntheses. Macromolecules 2011. [DOI: 10.1021/ma202438w] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mehmet Atilla Tasdelen
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul,
Turkey
- Department of Polymer
Engineering,
Faculty of Engineering, Yalova University, TR-77100 Yalova, Turkey
| | - Gorkem Yilmaz
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul,
Turkey
| | - Birol Iskin
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul,
Turkey
| | - Yusuf Yagci
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul,
Turkey
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Baumann H, Timpe HJ, Böttcher H. Initiatorsysteme für radikalinduzierte Photopolymerisationen. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/zfch.19830230602] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Baumann H, Timpe HJ, Zubarev VE, Fok NV, Melnikow MJ. ESR-Spin-Trapping bei bivalenten Photoinitiatorsystemen, bestehend aus α-Phenyl-benzoin und Aryloniumverbindungen. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/zfch.19850250514] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Baumann H, Timpe HJ. Photoinduzierte Zersetzung von Diaryliodonium- und Triarylsulfoniumsalzen durch Benzoinderivate und Benzilketale. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/zfch.19840240104] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Baumann H, Timpe HJ, Böttcher H. Initiatorsysteme für kationische Photopolymerisationen. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/zfch.19830231103] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Müller U. Photocrosslinking of Silicones. Part 12. UV-Curing of Silicone Acrylates in Thin Layers—A Real Time Infrared Study. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2006. [DOI: 10.1080/10601329608010852] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Crivello JV. Cationic polymerization — Iodonium and sulfonium salt photoinitiators. ADVANCES IN POLYMER SCIENCE 2005. [DOI: 10.1007/bfb0024034] [Citation(s) in RCA: 285] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Dursun C, Degirmenci M, Yagci Y, Jockusch S, Turro NJ. Free radical promoted cationic polymerization by using bisacylphosphine oxide photoinitiators: substituent effect on the reactivity of phosphinoyl radicals. POLYMER 2003. [DOI: 10.1016/j.polymer.2003.09.020] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Müller U, Utterodt A, Mörke W, Deubzer B, Herzig C. New insights about diazonium salts as cationic photoinitiators. J Photochem Photobiol A Chem 2001. [DOI: 10.1016/s1010-6030(01)00382-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Photocrosslinking of silicones—5. Photo-induced polymerization of silicone with pendant acrylate groups in the presence of oxygen. Eur Polym J 1991. [DOI: 10.1016/0014-3057(91)90146-f] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Timpe HJ, Rajendran A. Light-induced polymer and polymerization reactions—42. A kinetic study of cationic photopolymerization with (benzoin derivative)/(onium salt) systems. Eur Polym J 1991. [DOI: 10.1016/0014-3057(91)90129-c] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lichtinitiierte polymer- und polymerisations-reaktionen XXII: Untersuchungen zur photolyse von photo-initiatoren mit benzyliden-tert.-butylamin-n-oxid als spin-trap. ACTA ACUST UNITED AC 1985. [DOI: 10.1016/0047-2670(85)85065-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Baumann H, Becker H, Kronfeld K, Pfeifer D, Timpe HJ. Dediazoniation of arene diazonium salts by triplet excited aromatic ketones: electron or energy transfer? ACTA ACUST UNITED AC 1985. [DOI: 10.1016/0047-2670(85)85041-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Baumann H, Timpe HJ. Kationische Photopolymerisation von Isobutylglycidether mit Benzoinderivat/Aryloniumsalz- bzw. Benzildimethylketal/Aryloniumsalz-Initiatorsystemen. ACTA ACUST UNITED AC 1984. [DOI: 10.1002/prac.19843260402] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Baumann H, Merckel C, Timpe HJ, Graness A, Kleinschmidt J, Gould I, Turro N. The laser versus the lamp: Reactivity of the diphenyl ketyl radical in the ground and excited states. Chem Phys Lett 1984. [DOI: 10.1016/0009-2614(84)85285-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Timpe HJ, Schubert E, Worschech S. Photoinduzierte Zersetzung von Arendiazoniumsalzen durch Pyrazolon- und Naphtholfarbstoffe. ACTA ACUST UNITED AC 1982. [DOI: 10.1002/prac.19823240614] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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