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Koch T, Zhang W, Tran TT, Wang Y, Mikitisin A, Puchhammer J, Greer JR, Ovsianikov A, Chalupa-Gantner F, Lunzer M. Approaching Standardization: Mechanical Material Testing of Macroscopic Two-Photon Polymerized Specimens. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2308497. [PMID: 38303404 DOI: 10.1002/adma.202308497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 01/02/2024] [Indexed: 02/03/2024]
Abstract
Two-photon polymerization (2PP) is becoming increasingly established as additive manufacturing technology for microfabrication due to its high-resolution and the feasibility of generating complex parts. Until now, the high resolution of 2PP is also its bottleneck, as it limited throughput and therefore restricted the application to the production of microparts. Thus, mechanical properties of 2PP materials can only be characterized using nonstandardized specialized microtesting methods. Due to recent advances in 2PP technology, it is now possible to produce parts in the size of several millimeters to even centimeters, finally permitting the fabrication of macrosized testing specimens. Besides suitable hardware systems, 2PP materials exhibiting favorable mechanical properties that allow printing of up-scaled parts are strongly demanded. In this work, the up-scalability of three different photopolymers is investigated using a high-throughput 2PP system and low numerical aperture optics. Testing specimens in the cm-range are produced and tested with common or even standardized material testing methods available in conventionally equipped polymer testing labs. Examples of the characterization of mechanical, thermo-mechanical, and fracture properties of 2PP processed materials are shown. Additionally, aspects such as postprocessing and aging are investigated. This lays a foundation for future expansion of the 2PP technology to broader industrial application.
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Affiliation(s)
- Thomas Koch
- Institute of Materials Science and Technology, TU Wien, Vienna, 1060, Austria
| | - Wenxin Zhang
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Thomas T Tran
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Yingjin Wang
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Adrian Mikitisin
- Central Facility for Electron Microscopy, RWTH Aachen, 52074, Aachen, Germany
| | - Jakob Puchhammer
- Institute of Materials Science and Technology, TU Wien, Vienna, 1060, Austria
| | - Julia R Greer
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, CA, 91125, USA
- Kavli Nanoscience Institute, California Institute of Technology, Pasadena, CA, 91125, USA
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2
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High-Performance Photoinitiating Systems for LED-Induced Photopolymerization. Polymers (Basel) 2023; 15:polym15020342. [PMID: 36679223 PMCID: PMC9860695 DOI: 10.3390/polym15020342] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/29/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
Currently, increasing attention has been focused on light-emitting diodes (LEDs)-induced photopolymerization. The common LEDs (e.g., LED at 365 nm and LED at 405 nm) possess narrow emission bands. Due to their light absorption properties, most commercial photoinitiators are sensitive to UV light and cannot be optimally activated under visible LED irradiation. Although many photoinitiators have been designed for LED-induced free radical polymerization and cationic polymerization, there is still the issue of the mating between photoinitiators and LEDs. Therefore, the development of novel photoinitiators, which could be applied under LED irradiation, is significant. Many photoinitiating systems have been reported in the past decade. In this review, some recently developed photoinitiators used in LED-induced photopolymerization, mainly in the past 5 years, are summarized and categorized as Type Ⅰ photoinitiators, Type Ⅱ photoinitiators, and dye-based photoinitiating systems. In addition, their light absorption properties and photoinitiation efficiencies are discussed.
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3
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Wloka T, Gottschaldt M, Schubert US. From Light to Structure: Photo Initiators for Radical Two-Photon Polymerization. Chemistry 2022; 28:e202104191. [PMID: 35202499 PMCID: PMC9324900 DOI: 10.1002/chem.202104191] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Indexed: 11/06/2022]
Abstract
Two-photon polymerization (2PP) represents a powerful technique for the fabrication of precise three-dimensional structures on a micro- and nanometer scale for various applications. While many review articles are focusing on the used polymeric materials and their application in 2PP, in this review the class of two-photon photo initiators (2PI) used for radical polymerization is discussed in detail. Because the demand for highly efficient 2PI has increased in the last decades, different approaches in designing new efficient 2PIs occurred. This review summarizes the 2PIs known in literature and discusses their absorption behavior under one- and two-photon absorption (2PA) conditions, their two-photon cross sections (σTPA ) as well as their efficiency under 2PP conditions. Here, the photo initiators are grouped depending on their chromophore system (D-π-A-π-D, D-π-D, etc.). Their polymerization efficiencies are evaluated by fabrication windows (FW) depending on different laser intensities and writing speeds.
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Affiliation(s)
- Thomas Wloka
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller Universität Jena, Humboldtstraße 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller Universität Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Michael Gottschaldt
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller Universität Jena, Humboldtstraße 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller Universität Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller Universität Jena, Humboldtstraße 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller Universität Jena, Philosophenweg 7, 07743, Jena, Germany
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Jaiswal A, Rani S, Singh GP, Hassan M, Nasrin A, Gomes VG, Saxena S, Shukla S. Additive-Free All-Carbon Composite: A Two-Photon Material System for Nanopatterning of Fluorescent Sub-Wavelength Structures. ACS NANO 2021; 15:14193-14206. [PMID: 34435496 DOI: 10.1021/acsnano.1c01083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The major bottleneck in fabrication of engineered 3D nanostructures is the choice of materials. Adding functionality to these nanostructures is a daunting task. In order to mitigate these issues, we report a two-photon patternable all carbon material system which can be used to fabricate fluorescent 3D micro/nanostructures using two-photon lithography, with subwavelength resolution. The synthesized material system eliminates the need to use conventional two-photon absorbing materials such as two-photon dyes or two-photon initiators. We have used two different trifunctional acrylate monomers and carbon dots, synthesized hydrothermally from a polyphenolic precursor, to formulate a two-photon processable resin. Upon two-photon excitation, photogenerated electrons in the excited states of the carbon dots facilitate the free radical formation at the surface of the carbon dots. These radicals, upon interaction with vinyl moieties, enable cross-linking of acrylate monomers. Free-radical induced two-photon polymerization of acrylate monomers without any conventional proprietary two-photon absorbing materials was accomplished at an ultrafine subwavelength resolution of 250 nm using 800 nm laser excitation. The effect of critical parameters such as average laser power, carbon dot concentration, and radiation exposure were determined for the fabrication of one-, two-, and three-dimensional functional nanostructures, applicable in a range of domains where fluorescence and toxicity are of the utmost importance. A fabrication speed as high as 100 mm/s was achieved. The ability to fabricate functional 3D micro-/nanostructures is anticipated to instigate a paradigm shift in various areas such as metamaterials, energy storage, drug delivery, and optoelectronics to name a few.
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Affiliation(s)
- Arun Jaiswal
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Sweta Rani
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay-Monash Research Academy, Mumbai 400076, Maharashtra, India
| | - Gaurav Pratap Singh
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Mahbub Hassan
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Aklima Nasrin
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Vincent G Gomes
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
- Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Sumit Saxena
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay-Monash Research Academy, Mumbai 400076, Maharashtra, India
| | - Shobha Shukla
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay-Monash Research Academy, Mumbai 400076, Maharashtra, India
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Yaseen AA, Al-Tikrity ETB, Yousif E, Ahmed DS, Kariuki BM, El-Hiti GA. Effect of Ultraviolet Irradiation on Polystyrene Containing Cephalexin Schiff Bases. Polymers (Basel) 2021; 13:polym13172982. [PMID: 34503022 PMCID: PMC8434342 DOI: 10.3390/polym13172982] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022] Open
Abstract
The scale of production of polystyrene has escalated in the recent past in order to meet growing demand. As a result, a large quantity of polystyrene waste continues to be generated along with associated health and environmental problems. One way to tackle such problems is to lengthen the lifetime of polystyrene, especially for outdoor applications. Our approach is the synthesis and application of new ultraviolet photostabilizers for polystyrene and this research is focused on four cephalexin Schiff bases. The reaction of cephalexin and 3-hydroxybenzaldehyde, 4-dimethylaminobenzaldehyde, 4-methoxybenzaldehyde, and 4-bromobanzaldehyde under acidic condition afforded the corresponding Schiff bases in high yields. The Schiff bases were characterized and their surfaces were examined. The Schiff bases were mixed with polystyrene to form homogenous blends and their effectiveness as photostabilizers was explored using different methods. The methods included monitoring the changes in the infrared spectra, weight loss, depression in molecular weight, and surface morphology on irradiation. In the presence of the Schiff bases, the formation of carbonyl group fragments, weight loss, and decrease in molecular weight of polystyrene were lower when compared with pure polystyrene. In addition, undesirable changes in the surface such as the appearance of dark spots, cracks, and roughness were minimal for irradiated polystyrene containing cephalexin Schiff bases. Mechanisms by which cephalexin Schiff bases stabilize polystyrene against photodegradation have also been suggested.
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Affiliation(s)
- Anaheed A. Yaseen
- Department of Chemistry, College of Science, Tikrit University, Tikrit 34001, Iraq; (A.A.Y.); (E.T.B.A.-T.)
| | - Emaad T. B. Al-Tikrity
- Department of Chemistry, College of Science, Tikrit University, Tikrit 34001, Iraq; (A.A.Y.); (E.T.B.A.-T.)
| | - Emad Yousif
- Department of Chemistry, College of Science, Al-Nahrain University, Baghdad 64021, Iraq;
| | - Dina S. Ahmed
- Department of Medical Instrumentation Engineering, Al-Mansour University College, Baghdad 64021, Iraq;
| | - Benson M. Kariuki
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK;
| | - Gamal A. El-Hiti
- Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
- Correspondence: ; Tel.: +966-11469-3778; Fax: +966-11469-3536
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6
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Zhu P, Li J, Gao L, Xiong J, Tan K. Strategy to Synthesize Tunable Multiemission Carbon Dots and Their Multicolor Visualization Application. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33354-33362. [PMID: 34250799 DOI: 10.1021/acsami.1c07260] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Studies on multiemission fluorescent carbon dots (CDs) excited at one wavelength are extremely promising because of their label-free property, facile synthesis, multicolor visualization, and prevention of background interference. In this study, a novel template strategy to develop multiemission carbon dots (M-CDs) using fluorescent precursors has emerged. We attempted to elucidate the relationship between precursor substances and luminescence origins. The M-CDs prepared by calcein demonstrate three emissions, ultraviolet (UV), blue, and green, which are attributed to the solvent, surface defect, and precursor aromatic ring luminophores, respectively. Also, through a regular adjustment of the amount of NaOH or the solvothermal synthesis time, the expected optical requirements were successfully met by the M-CDs, which is a better capability than that of previously reported M-CDs. In addition, a multicolor sensor designed with M-CDs and rhodamine B (RhB) has been successfully applied in cell imaging. When exposed to different pH media, the fluorescence (FL) emission shows a linear relationship with the pH value, displaying a profuse color evolution from dark blue to light blue, cyan, green, yellow, and finally, orange.
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Affiliation(s)
- Panpan Zhu
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Jiayu Li
- Chongqing Key Laboratory of Translational Medicine in Major Metabolic Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P. R. China
| | - Lixia Gao
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Jie Xiong
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Kejun Tan
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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7
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Li S, Hu J, Zhang S, Feng C, Zhang L, Wang C, He Z, Zhang L. Novel A-π-D-π-A structure two-photon polymerization initiators based on phenothiazine and carbazole derivatives. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01713-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Abstract
3D printing (also called "additive manufacturing" or "rapid prototyping") is able to translate computer-aided and designed virtual 3D models into 3D tangible constructs/objects through a layer-by-layer deposition approach. Since its introduction, 3D printing has aroused enormous interest among researchers and engineers to understand the fabrication process and composition-structure-property correlation of printed 3D objects and unleash its great potential for application in a variety of industrial sectors. Because of its unique technological advantages, 3D printing can definitely benefit the field of microrobotics and advance the design and development of functional microrobots in a customized manner. This review aims to present a generic overview of 3D printing for functional microrobots. The most applicable 3D printing techniques, with a focus on laser-based printing, are introduced for the 3D microfabrication of microrobots. 3D-printable materials for fabricating microrobots are reviewed in detail, including photopolymers, photo-crosslinkable hydrogels, and cell-laden hydrogels. The representative applications of 3D-printed microrobots with rational designs heretofore give evidence of how these printed microrobots are being exploited in the medical, environmental, and other relevant fields. A future outlook on the 3D printing of microrobots is also provided.
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Affiliation(s)
- Jinhua Li
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, Prague 6, 16628, Czech Republic.
| | - Martin Pumera
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, Prague 6, 16628, Czech Republic. and Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno, CZ-61600, Czech Republic and Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic and Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
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9
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Begantsova YE, Zvagelsky R, Baranov EV, Chubich DA, Chechet YV, Kolymagin DA, Pisarenko AV, Vitukhnovsky AG, Chesnokov SA. Imidazole-containing photoinitiators for fabrication of sub-micron structures by 3D two-photon polymerization. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Arnoux C, Konishi T, Van Elslande E, Poutougnigni EA, Mulatier JC, Khrouz L, Bucher C, Dumont E, Kamada K, Andraud C, Baldeck P, Banyasz A, Monnereau C. Polymerization Photoinitiators with Near-Resonance Enhanced Two-Photon Absorption Cross-Section: Toward High-Resolution Photoresist with Improved Sensitivity. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01518] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Caroline Arnoux
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Tatsuki Konishi
- Nanomaterials Research Institute (NMRI), National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577 Japan
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda 669-1337, Japan
| | - Emma Van Elslande
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Eric-Aimé Poutougnigni
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Jean-Christophe Mulatier
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Lhoussain Khrouz
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Christophe Bucher
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Elise Dumont
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Kenji Kamada
- Nanomaterials Research Institute (NMRI), National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577 Japan
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda 669-1337, Japan
| | - Chantal Andraud
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Patrice Baldeck
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Akos Banyasz
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Cyrille Monnereau
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
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11
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Quinoline Schiff-base ligands as long-wavelength photosensitizers for diphenyliodonium salt. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112715] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Zhou R, Jin M, Malval J, Pan H, Wan D. Bicarbazole‐based oxalates as photoinitiating systems for photopolymerization under UV–Vis LEDs. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20199298] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ruchun Zhou
- Department of Polymer Materials, School of Materials Science and EngineeringTongji University Shanghai China
| | - Ming Jin
- Department of Polymer Materials, School of Materials Science and EngineeringTongji University Shanghai China
| | - Jean‐Pierre Malval
- Institut de Science des Matériaux de Mulhouse, UMR CNRS 7361Université de Haute‐Alsace Mulhouse France
| | - Haiyan Pan
- Department of Polymer Materials, School of Materials Science and EngineeringTongji University Shanghai China
| | - Decheng Wan
- Department of Polymer Materials, School of Materials Science and EngineeringTongji University Shanghai China
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13
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Hu P, Qiu W, Naumov S, Scherzer T, Hu Z, Chen Q, Knolle W, Li Z. Conjugated Bifunctional Carbazole‐Based Oxime Esters: Efficient and Versatile Photoinitiators for 3D Printing under One‐ and Two‐Photon Excitation. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.201900246] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Peng Hu
- International Research Center for Photoresponsive Molecules and MaterialsJiangnan University Wuxi Jiangsu 214122 China
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 China
| | - Wanwan Qiu
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 China
| | - Sergej Naumov
- Department of Functional CoatingsLeibniz Institute of Surface Engineering (IOM) Permoserstr, 15 04318 Leipzig Germany
| | - Tom Scherzer
- Department of Functional CoatingsLeibniz Institute of Surface Engineering (IOM) Permoserstr, 15 04318 Leipzig Germany
| | - Zhiyong Hu
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin University Changchun Jilin 130012 China
| | - Qidai Chen
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin University Changchun Jilin 130012 China
| | - Wolfgang Knolle
- Department of Functional CoatingsLeibniz Institute of Surface Engineering (IOM) Permoserstr, 15 04318 Leipzig Germany
| | - Zhiquan Li
- International Research Center for Photoresponsive Molecules and MaterialsJiangnan University Wuxi Jiangsu 214122 China
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 China
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14
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Qiu W, Li M, Yang Y, Li Z, Dietliker K. Cleavable coumarin-based oxime esters with terminal heterocyclic moieties: photobleachable initiators for deep photocuring under visible LED light irradiation. Polym Chem 2020. [DOI: 10.1039/c9py01690b] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oxime ester photoinitiators with terminal heterocyclic moieties can efficiently initiate acrylate and thiol–ene photopolymerization under 450 nm LED light irradiation to prepare materials of thickness up to 10 mm.
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Affiliation(s)
- Wanwan Qiu
- International Research Center for Photoresponsive Molecules and Materials
- Jiangnan University
- Wuxi
- P. R. China
- Key Laboratory of Synthetic and Biological Colloids
| | - Mengqi Li
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yinan Yang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Zhiquan Li
- International Research Center for Photoresponsive Molecules and Materials
- Jiangnan University
- Wuxi
- P. R. China
- Key Laboratory of Synthetic and Biological Colloids
| | - Kurt Dietliker
- Department of Chemistry and Applied Biosciences
- Laboratory of Inorganic Chemistry
- ETH Zürich
- 8093 Zürich
- Switzerland
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15
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Qiu W, Hu P, Zhu J, Liu R, Li Z, Hu Z, Chen Q, Dietliker K, Liska R. Cleavable Unimolecular Photoinitiators Based on Oxime‐Ester Chemistry for Two‐Photon Three‐Dimensional Printing. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900164] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wanwan Qiu
- International Research Center for Photoresponsive Molecules and MaterialsJiangnan University Wuxi, Jiangsu 214122 China
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Peng Hu
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Junzhe Zhu
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Ren Liu
- International Research Center for Photoresponsive Molecules and MaterialsJiangnan University Wuxi, Jiangsu 214122 China
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Zhiquan Li
- International Research Center for Photoresponsive Molecules and MaterialsJiangnan University Wuxi, Jiangsu 214122 China
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Zhiyong Hu
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin University Changchun 130012 China
| | - Qidai Chen
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin University Changchun 130012 China
| | - Kurt Dietliker
- Department of Chemistry and Applied Biosciences Laboratory of Inorganic ChemistryETH Zürich 8093 Zürich Switzerland
| | - Robert Liska
- Institute of Applied Synthetic ChemistryVienna University of Technology Getreidemarkt 9/163/MC 1060 Vienna Austria
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Hu P, Zhu J, Liu R, Li Z. Conjugated Ketocarbazoles as Efficient Photoinitiators: From Facile Synthesis to Efficient Two-photon Polymerization. J PHOTOPOLYM SCI TEC 2019. [DOI: 10.2494/photopolymer.32.257] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peng Hu
- International Research Center for Photoresponsive Molecules and Materials, Jiangnan University
| | - Junzhe Zhu
- International Research Center for Photoresponsive Molecules and Materials, Jiangnan University
| | - Ren Liu
- International Research Center for Photoresponsive Molecules and Materials, Jiangnan University
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University
| | - Zhiquan Li
- International Research Center for Photoresponsive Molecules and Materials, Jiangnan University
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University
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