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Nguyen TTT, Breloy L, Rios De Anda A, Hayek H, Chiappone A, Malval JP, Grande D, Versace DL. Thioxanthone-Based Siloxane Photosensitizer for Cationic/Radical Photopolymerization and Photoinduced Sol-Gel Reactions. Molecules 2024; 29:255. [PMID: 38202842 PMCID: PMC10780806 DOI: 10.3390/molecules29010255] [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: 11/17/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
In this investigation, a multifunctional visible-light TX-based photosensitizer containing a siloxane moiety (TXS) was designed with a good overall yield of 54%. The addition of a siloxane moiety enabled the incorporation of a TX photosensitizer into a siloxane network by photoinduced sol-gel chemistry, thus avoiding its release. Both liquid 1H and solid-state 29Si NMR measurements undeniably confirmed the formation of photoacids resulting from the photolysis of the TXS/electron acceptor molecule (Iodonium salt), which promoted the photoinduced hydrolysis/condensation of the trimethoxysilane groups of TXS, with a high degree of condensation of its inorganic network. Notably, the laser flash photolysis, fluorescence, and electron paramagnetic resonance spin-trapping (EPR ST) experiments demonstrated that TXS could react with Iod through an electron transfer reaction through its excited states, leading to the formation of radical initiating species. Interestingly, the TXS/Iod was demonstrated to be an efficient photoinitiating system for free-radical (FRP) and cationic (CP) polymerization under LEDs@385, 405, and 455 nm. In particular, whatever the epoxy monomer mixtures used, remarkable final epoxy conversions were achieved up to 100% under air. In this latter case, we demonstrated that both the photoinduced sol-gel process (hydrolysis of trimethoxysilane groups) and the cationic photopolymerization occurred simultaneously.
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Affiliation(s)
- Thi-Thanh-Tam Nguyen
- University Paris-Est Creteil, CNRS, ICMPE, UMR 7182, 94320 Thiais, France; (T.-T.-T.N.); (A.R.D.A.)
| | - Louise Breloy
- University Paris-Est Creteil, CNRS, ICMPE, UMR 7182, 94320 Thiais, France; (T.-T.-T.N.); (A.R.D.A.)
| | - Agustin Rios De Anda
- University Paris-Est Creteil, CNRS, ICMPE, UMR 7182, 94320 Thiais, France; (T.-T.-T.N.); (A.R.D.A.)
| | - Hassan Hayek
- University Paris-Est Creteil, CNRS, ICMPE, UMR 7182, 94320 Thiais, France; (T.-T.-T.N.); (A.R.D.A.)
| | - Annalisa Chiappone
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Via Università 40, 09124 Cagliari, Italy
| | - Jean-Pierre Malval
- Institut de Science des Matériaux de Mulhouse, UMR CNRS 7361, Université de Haute Alsace, 15 Rue Jean Starcky, 68057 Mulhouse, France
| | - Daniel Grande
- University Paris-Est Creteil, CNRS, ICMPE, UMR 7182, 94320 Thiais, France; (T.-T.-T.N.); (A.R.D.A.)
| | - Davy-Louis Versace
- University Paris-Est Creteil, CNRS, ICMPE, UMR 7182, 94320 Thiais, France; (T.-T.-T.N.); (A.R.D.A.)
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Dumur F. Recent advances on water-soluble photoinitiators of polymerization. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Dumur F. Recent Advances on Photoinitiating Systems Designed for Solar Photocrosslinking Polymerization Reactions. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Dumur F. Recent Advances on Anthraquinone-based Photoinitiators of Polymerization. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.112039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Recent Advances on Photobleachable Visible Light Photoinitiators of Polymerization. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Dumur F. Recent advances on benzylidene cyclopentanones as visible light photoinitiators of polymerization. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liu Z, Dumur F. Recent Advances on Visible Light Coumarin-based Oxime Esters as Initiators of Polymerization. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111449] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Taki K, Sawa K. Hybrid UV LED Device for Simulating Spectrum of High-Pressure Mercury Lamp: Evaluation in UV Curing Process. J PHOTOPOLYM SCI TEC 2018. [DOI: 10.2494/photopolymer.31.753] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kentaro Taki
- School of Mechanical Engineering, Graduate School of Natural Science, Kanazawa University
| | - Keigo Sawa
- Department of Natural Systems, Graduate School of Natural Science, Kanazawa University
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Zhang J, Zivic N, Dumur F, Xiao P, Graff B, Fouassier JP, Gigmes D, Lalevée J. N-[2-(Dimethylamino)ethyl]-1,8-naphthalimide derivatives as photoinitiators under LEDs. Polym Chem 2018. [DOI: 10.1039/c8py00055g] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Four N-[2-(dimethylamino)ethyl]-1,8-naphthalimide derivatives (ANNs) with different substituents in the naphthalimide skeleton have been synthesized and can be used as versatile photoinitiators under various LEDs.
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Affiliation(s)
- Jing Zhang
- Institut de Science des Matériaux de Mulhouse IS2 M
- 68057 Mulhouse Cedex
- France
- Research School of Chemistry
- Australian National University
| | | | | | - Pu Xiao
- Institut de Science des Matériaux de Mulhouse IS2 M
- 68057 Mulhouse Cedex
- France
- Research School of Chemistry
- Australian National University
| | - Bernadette Graff
- Institut de Science des Matériaux de Mulhouse IS2 M
- 68057 Mulhouse Cedex
- France
| | | | | | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse IS2 M
- 68057 Mulhouse Cedex
- France
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