1
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Tan ZS, Jamal Z, Teo DWY, Ko HC, Seah ZL, Phua HY, Ho PKH, Png RQ, Chua LL. Optimization of fluorinated phenyl azides as universal photocrosslinkers for semiconducting polymers. Nat Commun 2024; 15:6354. [PMID: 39069548 PMCID: PMC11284223 DOI: 10.1038/s41467-024-50257-5] [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: 05/05/2023] [Accepted: 07/03/2024] [Indexed: 07/30/2024] Open
Abstract
Fluorinated phenyl azides (FPA) enable photo-structuring of π-conjugated polymer films for electronic device applications. Despite their potential, FPAs have faced limitations regarding their crosslinking efficiency, and more importantly, their impact on critical semiconductor properties, such as charge-carrier mobility. Here, we report that azide photolysis and photocrosslinking can achieve unity quantum efficiencies for specific FPAs. This suggests preferential nitrene insertion into unactivated C‒H bonds over benzazirine and ketenimine reactions, which we attribute to rapid interconversion between the initially formed hot states. Furthermore, we establish a structure‒activity relationship for carrier mobility quenching. The binding affinity of FPA crosslinker to polymer π-stacks governs its propensity for mobility quenching in both PM6 and PBDB-T used as model conjugated polymers. This binding affinity can be suppressed by FPA ring substitution, but varies in a non-trivial way with π-stack order. Utilizing the optimal FPA, photocrosslinking enables the fabrication of morphology-stabilized, acceptor-infiltrated donor polymer networks (that is, PBDB-T: ITIC and PM6: Y6) for solar cells. Our findings demonstrate the exceptional potential of the FPA photochemistry and offer a promising approach to address the challenges of modelling realistic molecular interactions in complex polymer morphologies, moving beyond the limitations of Flory‒Huggins mean field theory.
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Affiliation(s)
- Zhao-Siu Tan
- Department of Chemistry, National University of Singapore, Lower Kent Ridge Road, S117552, Singapore, Singapore
| | - Zaini Jamal
- Department of Chemistry, National University of Singapore, Lower Kent Ridge Road, S117552, Singapore, Singapore
| | - Desmond W Y Teo
- Department of Chemistry, National University of Singapore, Lower Kent Ridge Road, S117552, Singapore, Singapore
| | - Hor-Cheng Ko
- Department of Chemistry, National University of Singapore, Lower Kent Ridge Road, S117552, Singapore, Singapore
| | - Zong-Long Seah
- Department of Physics, National University of Singapore, Lower Kent Ridge Road, S117550, Singapore, Singapore
| | - Hao-Yu Phua
- Department of Physics, National University of Singapore, Lower Kent Ridge Road, S117550, Singapore, Singapore
| | - Peter K H Ho
- Department of Physics, National University of Singapore, Lower Kent Ridge Road, S117550, Singapore, Singapore
| | - Rui-Qi Png
- Department of Physics, National University of Singapore, Lower Kent Ridge Road, S117550, Singapore, Singapore.
| | - Lay-Lay Chua
- Department of Chemistry, National University of Singapore, Lower Kent Ridge Road, S117552, Singapore, Singapore.
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2
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Abou-Ezze K, Llevot A, Taton D. Exploiting the Reversible Dimerization of N-Heterocyclic Carbenes to Access Dynamic Polymer Networks with an Organocatalytic Activity. ACS Macro Lett 2024:1008-1015. [PMID: 39052990 DOI: 10.1021/acsmacrolett.4c00390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
The capability of some N-heterocyclic carbenes (NHCs) to reversibly dimerize is exploited to access dynamic polymer networks. Benzimidazolium motifs serving as NHC precursors have thus been supported onto copolymer chains by reversible addition-fragmentation chain transfer (RAFT) copolymerization of styrene and up to 20 mol % of 4-vinylbenzyl-ethyl-benzimidazolium chloride. Molecular versions of 1,3-dialkyl benzimidazolium salts have been synthesized as models, the deprotonation of which with a strong base yields the NHC dimers in the form of tetraaminoalkenes. The crossover reaction between two distinct NHC homodimers, forming heterodimers, is then evidenced. Applying this deprotonation method to the RAFT-derived copolymers leads to polymer networks with cross-links consisting of labile dimerized NHC motifs. These networks can be subsequently decross-linked using two distinct triggers, namely, a monofunctional NHC precursor as competitor and carbon dioxide (CO2). In the latter case, regeneration of the network occurs by chemically fueling the linear copolymer bearing benzimidazolium motifs with tBuOK in the presence of trace amounts of water. The same networks can also be used as latent precursors of transient polyNHCs to catalyze the benzoin condensation upon heating. The polymer-supported organocatalysts can thus be used in successive catalytic cycles.
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Affiliation(s)
- Karine Abou-Ezze
- Laboratoire de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, CNRS, Bordeaux-INP, UMR 5629, 16 Av. Pey Berland, 33607 Pessac Cedex, France
| | - Audrey Llevot
- Laboratoire de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, CNRS, Bordeaux-INP, UMR 5629, 16 Av. Pey Berland, 33607 Pessac Cedex, France
| | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, CNRS, Bordeaux-INP, UMR 5629, 16 Av. Pey Berland, 33607 Pessac Cedex, France
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3
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Jiang Y, Zhang X, Nie H, Fan J, Di S, Fu H, Zhang X, Wang L, Tang C. Dissecting diazirine photo-reaction mechanism for protein residue-specific cross-linking and distance mapping. Nat Commun 2024; 15:6060. [PMID: 39025860 PMCID: PMC11258254 DOI: 10.1038/s41467-024-50315-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 07/08/2024] [Indexed: 07/20/2024] Open
Abstract
While photo-cross-linking (PXL) with alkyl diazirines can provide stringent distance restraints and offer insights into protein structures, unambiguous identification of cross-linked residues hinders data interpretation to the same level that has been achieved with chemical cross-linking (CXL). We address this challenge by developing an in-line system with systematic modulation of light intensity and irradiation time, which allows for a quantitative evaluation of diazirine photolysis and photo-reaction mechanism. Our results reveal a two-step pathway with mainly sequential generation of diazo and carbene intermediates. Diazo intermediate preferentially targets buried polar residues, many of which are inaccessible with known CXL probes for their limited reactivity. Moreover, we demonstrate that tuning light intensity and duration enhances selectivity towards polar residues by biasing diazo-mediated cross-linking reactions over carbene ones. This mechanistic dissection unlocks the full potential of PXL, paving the way for accurate distance mapping against protein structures and ultimately, unveiling protein dynamic behaviors.
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Affiliation(s)
- Yida Jiang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Xinghe Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Honggang Nie
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
- Analytical Instrumentation Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Jianxiong Fan
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Shuangshuang Di
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
- Analytical Instrumentation Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Hui Fu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
- Analytical Instrumentation Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Xiu Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
- Analytical Instrumentation Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Lijuan Wang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
- Analytical Instrumentation Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Chun Tang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China.
- Center for Quantitative Biology, PKU-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.
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4
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Zou C, Chen J, Khan MA, Si G, Chen C. Stapler Strategies for Upcycling Mixed Plastics. J Am Chem Soc 2024; 146:19449-19459. [PMID: 38953865 DOI: 10.1021/jacs.4c05828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Mechanical recycling is one of the simplest and most economical strategies to address ever-increasing plastic pollution, but it cannot be applied to immiscible mixed plastics and suffers from property deterioration after each cycle. By combining the amphiphilic block copolymer strategy and reactive compatibilization strategy, we designed a series of stapler strategies for compatibilizing/upcycling mixed plastics. First, various functionalized graft copolymers were accessed via different synthetic routes. Subsequently, the addition of a very small amount of stapler molecules induced a synergistic effect with the graft copolymers that improved the compatibility and mechanical properties of mixed plastics. These strategies were highly effective for various binary/ternary plastic systems and can be directly applied to postconsumer waste plastics, which can increase the toughness of mixed postconsumer waste plastics by 162 times. Most importantly, it also effectively improved the impact resistance, adhesion performance, and three-dimensional (3D) printing performance of mixed plastics, and permitted the recycling of plastic blends 20 times with minimal degradation in their mechanical properties.
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Affiliation(s)
- Chen Zou
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Jiawei Chen
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Muhammad Asadullah Khan
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Guifu Si
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Changle Chen
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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5
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Yakufu M, Wang Z, Li C, Jia Q, Ma C, Zhang P, Abudushalamu M, Akber S, Yan L, Xikeranmu M, Song X, Abudourousuli A, Shu L. Carbene-mediated gelatin and hyaluronic acid hydrogel paints with ultra adhesive ability for arthroscopic cartilage repair. Int J Biol Macromol 2024; 273:133122. [PMID: 38876236 DOI: 10.1016/j.ijbiomac.2024.133122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 06/09/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
In articular cartilage defect, particularly in arthroscopy, regenerative hydrogels are urgently needed. It should be able to firmly adhere to the cartilage tissue and maintain sufficient mechanical strength to withstand approximately 10 kPa of arthroscopic hydraulic flushing. In this study, we report a carbene-mediated ultra adhesive hybrid hydrogel paints for arthroscopic cartilage repair, which combined the photo initiation of double crosslinking system with the addition of diatomite, as a further reinforcing agent and biological inorganic substances. The double network consisting of ultraviolet initiated polymerization of hyaluronic acid methacrylate (HAMA) and carbene insertion chemistry of diazirine-grafted gelatin (GelDA) formed an ultra-strong adhesive hydrogel paint (H2G5DE). Diatomite helped the H2G5DE hydrogel paint firmly adhere to the cartilage defect, withstanding nearly 100 kPa of hydraulic pressure, almost 10 times that in clinical arthroscopy. Furthermore, the H2G5DE hydrogel supported cell growth, proliferation, and migration, thus successfully repairing cartilage defects. Overall, this study demonstrates a proof-of-concept of ultra-adhesive polysaccharide hydrogel paints, which can firmly adhere to the articular cartilage defects, can resist continuous hydraulic pressure, can promote effective cartilage regeneration, and is very suitable for minimally invasive arthroscopy.
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Affiliation(s)
- Maihemuti Yakufu
- Orthopaedic Research Center, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, PR China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
| | - Chunbao Li
- Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing 100048, PR China.
| | - Qiyu Jia
- Department of Trauma Orthopedics, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, PR China.
| | - Chuang Ma
- Department of Trauma Orthopedics, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, PR China
| | - Peng Zhang
- Department of Sports Medicine, Characteristic Medical Center of Chinese People's Armed Police Forces, Tianjin 300162, PR China
| | - Muyashaer Abudushalamu
- Orthopaedic Research Center, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, PR China
| | - Sajida Akber
- Orthopaedic Research Center, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, PR China
| | - Li Yan
- Orthopaedic Research Center, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, PR China
| | - Milibanguli Xikeranmu
- Orthopaedic Research Center, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, PR China
| | - Xinghua Song
- Orthopaedic Research Center, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, PR China
| | - Adili Abudourousuli
- Animal Expermental Center,Xinjiang Medical University, Urumqi 830017, PR China
| | - Li Shu
- Orthopaedic Research Center, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, PR China.
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6
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Fan D, Wang D, Zhang J, Fu X, Yan X, Wang D, Qin A, Han T, Tang BZ. Cobalt-Catalyzed Cascade C-H Activation/Annulation Polymerizations toward Diversified and Multifunctional Sulfur-Containing Fused Heterocyclic Polymers. J Am Chem Soc 2024; 146:17270-17284. [PMID: 38863213 DOI: 10.1021/jacs.4c03889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Transition-metal-catalyzed C-H activation has greatly benefited the synthesis and development of functional polymer materials, and the construction of multifunctional fused (hetero)cyclic polymers via novel C-H activation-based polyannulations has emerged as a charming but challenging area in recent years. Herein, we report the first cobalt(III)-catalyzed cascade C-H activation/annulation polymerization (CAAP) approach that can efficiently transform readily available aryl thioamides and internal diynes into multifunctional sulfur-containing fused heterocyclic (SFH) polymers. Within merely 3 h, a series of SFH polymers bearing complex and multisubstituted S,N-doped polycyclic units are facilely and efficiently produced with high molecular weights (absolute Mn up to 220400) in excellent yields (up to 99%), which are hard to achieve by traditional methods. The intermediate-terminated SFH polymer can be used as a reactive macromonomer to controllably extend or modify polymer main chains. The structural diversity can be further enriched through facile S-oxidation and N-methylation reactions of the SFH polymers. Benefiting from the unique structures, the obtained polymers exhibit excellent solution processability, high thermal and morphological stability, efficient and readily tunable aggregate-state fluorescence, stimuli-responsive properties, and high and UV-modulatable refractive indices of up to 1.8464 at 632.8 nm. These properties allow the SFH polymers to be potentially applied in diverse fields, including metal ion detection, photodynamic killing of cancer cells, fluorescent photopatterning, and gradient-index optical materials.
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Affiliation(s)
- Dongyang Fan
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Deliang Wang
- Department of Materials Chemistry, Huzhou University, Huzhou, Zhejiang 313000, China
| | - Jie Zhang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Xinyao Fu
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Xueke Yan
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Dong Wang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Ting Han
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong 518172, China
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7
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Yi S, Yang S, Xie Z, Yun J, Pan X. Carbene-Mediated Polymer Modification Using Diazo Compounds under Photo or Thermal Activation Conditions. ACS Macro Lett 2024; 13:711-718. [PMID: 38767947 DOI: 10.1021/acsmacrolett.4c00222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Based on the characteristics of commodity polymers in large quantities and low costs, modification of existing commodity polymers emerges as the most effective approach for exploring novel materials. Nevertheless, conventional modification methods typically involve high-energy processes (e.g., high temperature, high-energy radiation), which may lead to irreversible detrimental effects on the polymers, contradicting the desired performance enhancement through modification. In this work, we propose a carbene-mediated postpolymerization modification (PPM) strategy utilizing diazo compounds. Under photochemical or thermal activation conditions, insertion of the C-H bond can be achieved without compromising the performance of polymers. These diazo compounds can be easily synthesized in just two steps and applied to all C-H-containing polymers. This practical and effective modification strategy offers new opportunities and possibilities for enhancing the value and expanding the applications of polymers.
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Affiliation(s)
- Siyu Yi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Shicheng Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Zhikang Xie
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jie Yun
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xiangcheng Pan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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8
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Yi YQQ, Su F, Xu W, Zhang Q, Zhang S, Xie L, Su W, Cui Z, Luscombe CK. Nondestructive Direct Patterning of Both Hole Transport and Emissive Layers for Pixelated Quantum-Dot Light-Emitting Diodes. ACS NANO 2024; 18:15915-15924. [PMID: 38833535 DOI: 10.1021/acsnano.4c03458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Considering the increasing demand for high-resolution light-emitting diodes (LEDs), it is important that direct fine patterning technologies for LEDs be developed, especially for quantum-dot LEDs (QLEDs). Traditionally, the patterning of QLEDs relies on resin-based photolithography techniques, requiring multiple steps and causing performance deterioration. Nondestructive direct patterning may provide an easy and stepwise method to achieve fine-pixelated units in QLEDs. In this study, two isomeric tridentate cross-linkers (X8/X9) are presented and can be blended into the hole transport layer (HTL) and the emissive layer (EML) of QLEDs. Because of their photosensitivity, the in situ cross-linking process can be efficiently triggered by ultraviolet irradiation, affording high solvent resistance and nondestructive direct patterning of the layers. Red QLEDs using the cross-linked HTL demonstrate an impressive external quantum efficiency of up to 22.45%. Through lithographic patterning enabled by X9, line patterns of HTL and EML films exhibit widths as narrow as 2 and 4 μm, respectively. Leveraging the patterned HTL and EML, we show the successful fabrication of pixelated QLED devices with an area size of 3 × 3 mm2, alongside the successful production of dual-color pixelated QLED devices. These findings showcase the promising potential of direct patterning facilitated by engineered cross-linkers for the cost-effective fabrication of pixelated QLED displays.
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Affiliation(s)
- Yuan-Qiu-Qiang Yi
- Printable Electronics Research Center, Division of Nano-Devices Research, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
- Pi-Conjugated Polymers Unit, Okinawa Institute of Science and Technology, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
| | - Fuyan Su
- Printable Electronics Research Center, Division of Nano-Devices Research, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Wenya Xu
- Printable Electronics Research Center, Division of Nano-Devices Research, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Qing Zhang
- Vacuum Interconnected Nanotech Workstation (Nano-X), Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Shuo Zhang
- Printable Electronics Research Center, Division of Nano-Devices Research, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Liming Xie
- Printable Electronics Research Center, Division of Nano-Devices Research, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Wenming Su
- Printable Electronics Research Center, Division of Nano-Devices Research, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Zheng Cui
- Printable Electronics Research Center, Division of Nano-Devices Research, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Christine K Luscombe
- Pi-Conjugated Polymers Unit, Okinawa Institute of Science and Technology, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
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9
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Kandanarachchi P, Meyer GA, Musolino SF, Wulff JE, Rhodes LF. Crosslinking Vinyl-Addition Polynorbornenes via Difunctional Diazirines to Generate Low Dielectric-Constant and Low Dielectric-Loss Thermosets. Macromol Rapid Commun 2024:e2400200. [PMID: 38875712 DOI: 10.1002/marc.202400200] [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: 04/07/2024] [Revised: 05/23/2024] [Indexed: 06/16/2024]
Abstract
Thermosets having low dielectric constant (Dk < 3) and low dielectric dissipation factor (Df < 0.003), high glass transition temperature (Tg > 150 °C), and good adhesion to copper are desirable for the low loss layers of the copper clad laminates (CCL) in next generation printed circuit boards. Three different difunctional diazirines are evaluated for both thermal and photochemical crosslinking of a high Tg vinyl-addition polynorbornene resin: poly(5-hexyl-1-norbornene) (poly(HNB)). The substrate polymer, crosslinked by the carbenes generated from the activated diazirines, forms thermosets with Dk < 2.3 and Df < 0.001 at 10 GHz depending on the identity of the diazirine and the loading. The Dk and Df values for one composition are stable for 1600 h at 125 °C in air and for 1400 h at 85 °C and 85% relative humidity, suggesting good long-term reliability of this thermoset. Adhesion of poly(HNB) to copper can be enhanced by priming the copper surface with a diazirine prior to high temperature lamination; peel strength values of greater than 7.5 N cm-1 are achieved. Negative-tone photopatterning of poly(HNB) with diazirines upon exposure to 365 nm light is demonstrated.
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Affiliation(s)
| | | | | | - Jeremy E Wulff
- Department of Chemistry, University of Victoria, Victoria, BC, V8W 3V6, Canada
| | - Larry F Rhodes
- Promerus, LLC, 225 W. Bartges Street, Akron, OH, 44307, USA
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10
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Castro J, Westworth X, Shrestha R, Yokoyama K, Guan Z. Efficient and Robust Dynamic Crosslinking for Compatibilizing Immiscible Mixed Plastics through In Situ Generated Singlet Nitrenes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2406203. [PMID: 38848581 DOI: 10.1002/adma.202406203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/16/2024] [Indexed: 06/09/2024]
Abstract
Creating a sustainable economy for plastics demands the exploration of new strategies for efficient management of mixed plastic waste. The inherent incompatibility of different plastics poses a major challenge in plastic mechanical recycling, resulting in phase-separated materials with inferior mechanical properties. Here, this study presents a robust and efficient dynamic crosslinking chemistry that effectively compatibilizes mixed plastics. Composed of aromatic sulfonyl azides, the dynamic crosslinker shows high thermal stability and generates singlet nitrene species in situ during solvent-free melt-extrusion, effectively promoting C─H insertion across diverse plastics. This new method demonstrates successful compatibilization of binary polymer blends and model mixed plastics, enhancing mechanical performance and improving phase morphology. It holds promise for managing mixed plastic waste, supporting a more sustainable lifecycle for plastics.
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Affiliation(s)
- Jordan Castro
- Department of Chemistry, University of California Irvine, Irvine, CA, 92697, USA
| | - Xavier Westworth
- Department of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, CA, 92697, USA
| | - Roman Shrestha
- Department of Chemistry, University of California Irvine, Irvine, CA, 92697, USA
| | - Kosuke Yokoyama
- Department of Chemistry, University of California Irvine, Irvine, CA, 92697, USA
| | - Zhibin Guan
- Department of Chemistry, University of California Irvine, Irvine, CA, 92697, USA
- Department of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, CA, 92697, USA
- Department of Materials Science and Engineering, University of California Irvine, Irvine, CA, 92697, USA
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, 92697, USA
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11
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Ang EWJ, Djordjevic I, Solic I, Goh CY, Steele TWJ. Tougher Bioadhesives through Dual Stimulation Strategies. Adv Healthc Mater 2024; 13:e2303666. [PMID: 38431774 DOI: 10.1002/adhm.202303666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/26/2024] [Indexed: 03/05/2024]
Abstract
Carbene-based bioadhesives have favourable attributes for tissue adhesion, including non-specific bonding to wet and dry tissues, but suffer from relatively weak fracture strength after photocuring. Light irradiation of carbene-precursor (diazirine) also creates inert side products that are absent under thermal activation. Herein, a dual activation method combines light irradiation at elevated temperatures for the evaluation of diazirine depletion and effects on cohesive properties. A customized photo/thermal-rheometer evaluates viscoelastic properties, correlated to the kinetics of carbene:diazoalkane ratios via 19F NMR). The latter exploits the sensitive -CF3 functional group to determine joule-based light/temperature kinetics on trifluoroaryl diazirine consumption. The combination of heat and photoactivation produced bioadhesives that are 3× tougher compared to control. Dual thermal/light irradiation may be a strategy to improve viscoelastic dissipation and toughness of photo-activated adhesive resins.
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Affiliation(s)
- Elwin W J Ang
- Nanyang Environment and Water Research Institute, Interdisciplinary Graduate School, Nanyang Technological University, Singapore, 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ivan Djordjevic
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ivan Solic
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Chen Yee Goh
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Terry W J Steele
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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12
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To HM, Ollevier T. Cyclopropanation of Alkenes with Halodiazirines as Halocarbene Precursors in Continuous Flow. Chemistry 2024; 30:e202303969. [PMID: 38490952 DOI: 10.1002/chem.202303969] [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: 11/28/2023] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 03/17/2024]
Abstract
The cyclopropanation reaction of alkenes with photolytically-generated chlorocarbenes from chlorodiazirines is reported as an effective way to prepare substituted 3-chloro-3-aryl-cyclopropanes. This practical and efficient approach allows the synthesis of various 3-chloro-3-aryl-cyclopropanes (32 examples) in continuous flow in 5-minute residence time under light-emitting diode (LED) irradiation. The conditions using 380 nm LED irradiation were successfully extended to the synthesis of substituted 3-bromo-3-aryl-cyclopropanes (3 examples).
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Affiliation(s)
- Hoang-Minh To
- Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC, G1V 0A6, Canada
| | - Thierry Ollevier
- Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC, G1V 0A6, Canada
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13
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Lai Y, Cheng J, Xie M, Chen J, Zhu G, Huang W, Feng LW. Precisely Patterned Channels in a Vertical Organic Electrochemical Transistor with a Diazirine Photo-Crosslinker. Angew Chem Int Ed Engl 2024; 63:e202401773. [PMID: 38429971 DOI: 10.1002/anie.202401773] [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: 01/25/2024] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/03/2024]
Abstract
Organic electrochemical transistors (OECTs) rely on both efficient ionic doping/de-doping process and carrier transport in the mixed ionic-electronic channel under the modulation of gate bias. Moreover, channels that hold photopatterning capability are highly desired to minimize parasitic capacitance and simplify the fabrication process/cost. However, yielding photo-patternable channels with both precise/robust patterning capability and controllable ionic-electronic coupling is still challenging. Herein, double-end trifluoromethyl diazirines (DtFDA) with different chain lengths are introduced in the OECT channel to act as both photo-crosslinker and medium to regulate ionic-electronic transport. Specifically, high-resolution patterns with a minimum line width/gap of 2 μm are realized in p(g2T-T) or Homo-gDPP based channels by introducing DtFDA. Maximum transconductances of 68.6 mS and 81.6 mS, current on/off ratio of 106 and 107 (under a drain voltage of only ±0.1 V), are achieved in p- and n-type vertical OECTs (vOECTs), respectively, along with current densities exceeding 1 kA cm-2 and good cycling stability of more than 100,000 cycles (2000 seconds). This work provides a new and facile strategy for the fabrication of vOECT channels with high resolution and high performance via the introduction of a simple and efficient crosslinker.
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Affiliation(s)
- Yueping Lai
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610065, China
| | - Jingliang Cheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610065, China
| | - Miao Xie
- School of Automation Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 611731, China
| | - Jianhua Chen
- Department of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Guichuan Zhu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610065, China
| | - Wei Huang
- School of Automation Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 611731, China
| | - Liang-Wen Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610065, China
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14
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Vienken J, Boccato C. Do medical devices contribute to sustainability? The role of innovative polymers and device design. Int J Artif Organs 2024; 47:240-250. [PMID: 38618975 DOI: 10.1177/03913988241245013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Sustainability of a medical device has not yet become a major issue in public discussions compared to other topics with impact to material performance, clinical application, production economy and environmental pollution. Due to their unique properties, polymers (plastics) allow for multiple, flexible applications in medical device technology. Polymers are part of the majority of disposable and single use medical device and contribute with 3% to the worldwide production of plastics. The global medical polymer market size was valued 19.9 billion US-$ in 2022 and its value projection for 2023 is expected to reach 43.03 billion US-$ Here, a wider concept of related sustainability is introduced for medical devices and their polymer components. A close look on medical device specification reveals that additional properties are required to provide sustainability, such as biodegradability, quality by device design (QbD), as well as an inbuild performance service for patients, healthcare professionals and healthcare providers. The increasing global numbers for chronic and non-communicable diseases require a huge demand for single use medical devices. A careful look at polymer specification and its performance properties is needed, including possible chemical modifications and degradation processes during waste disposal. Bioengineers in charge of design and production of medical devices will only be successful when they apply a holistic and interdisciplinary approach to medical device sustainability.
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15
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Shao Y, Du G, Luo B, Liu T, Zhao J, Zhang S, Wang J, Chi M, Cai C, Liu Y, Meng X, Liu Z, Wang S, Nie S. A Tough Monolithic-Integrated Triboelectric Bioplastic Enabled by Dynamic Covalent Chemistry. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311993. [PMID: 38183330 DOI: 10.1002/adma.202311993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/30/2023] [Indexed: 01/08/2024]
Abstract
Electronic waste is a growing threat to the global environment and human health, raising particular concerns. Triboelectric devices synthesized from sustainable and degradable materials are a promising electronic alternative, but the mechanical mismatch at the interface between the polymer substrate and the electrodes remains unresolved in practical applications. This study uses the sulfhydryl silanization reaction and the chemical selectivity and site specificity of the thiol-disulfide exchange reaction in dynamic covalent chemistry to prepare a tough monolithic-integrated triboelectric bioplastic. The stress is dissipated by covalent bond adaptation to the interface interaction, which makes the polymer dielectric layer to the conductive layer have a good interface adhesion effect (220.55 kPa). The interfacial interlocking of the polymer substrate with the conductive layer gives the triboelectric bioplastic excellent tensile strength (87.4 MPa) and fracture toughness (33.3 MJ m-3). Even when subjected to a tension force of 10 000 times its weight, it still maintains a stable triboelectric output with no visible cracks. This study provides new insights into the design of reliable and environmentally friendly self-powered devices, which is significant for the development of flexible wearable electronics.
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Affiliation(s)
- Yuzheng Shao
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Guoli Du
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Bin Luo
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Tao Liu
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Jiamin Zhao
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Song Zhang
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Jinlong Wang
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Mingchao Chi
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Chenchen Cai
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Yanhua Liu
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Xiangjiang Meng
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Zhaomeng Liu
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Shuangfei Wang
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
| | - Shuangxi Nie
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, P. R. China
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16
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Liu D, Weng K, Zhao H, Wang S, Qiu H, Luo X, Lu S, Duan L, Bai S, Zhang H, Li J. Nondestructive Direct Optical Patterning of Perovskite Nanocrystals with Carbene-Based Ligand Cross-Linkers. ACS NANO 2024; 18:6896-6907. [PMID: 38376996 DOI: 10.1021/acsnano.3c07975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Microscale patterning of colloidal perovskite nanocrystals (NCs) is essential for their integration in advanced device platforms, such as high-definition displays. However, perovskite NCs usually show degraded optical and/or electrical properties after patterning with existing approaches, posing a critical challenge for their optoelectronic applications. Here we achieve nondestructive, direct optical patterning of perovskite NCs with rationally designed carbene-based cross-linkers and demonstrate their applications in high-performance light-emitting diodes. We reveal that both the photochemical properties and the electronic structures of cross-linkers need to be carefully tailored to the material properties of perovskite NCs. This method produces high-resolution (∼4000 ppi) NC patterns with preserved photoluminescent quantum efficiencies and charge transport properties. Prototype light-emitting diodes with patterned/cross-linked NC layers show a maximum luminance of over 60000 cd m-2 and a peak external quantum efficiency of 16%, among the highest for patterned perovskite electroluminescent devices. Such a material-adapted patterning method enabled by designs from a photochemistry perspective could foster the applications of perovskite NCs in system-level electronic and optoelectronic devices.
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Affiliation(s)
- Dan Liu
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
| | - Kangkang Weng
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
| | - Haifeng Zhao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610000, People's Republic of China
| | - Song Wang
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
| | - Hengwei Qiu
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
| | - Xiyu Luo
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
| | - Shaoyong Lu
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
| | - Lian Duan
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
- Laboratory of Flexible Electronic Technology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Sai Bai
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610000, People's Republic of China
| | - Hao Zhang
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
- Laboratory of Flexible Electronic Technology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Jinghong Li
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
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17
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Chen Y, Li R, Li B, Li K, Hao Y. A controlled light-induced gas-foaming porous hydrogel with adhesion property for infected wound healing. Int J Biol Macromol 2024; 261:129751. [PMID: 38280702 DOI: 10.1016/j.ijbiomac.2024.129751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/11/2024] [Accepted: 01/23/2024] [Indexed: 01/29/2024]
Abstract
Porous hydrogels as scaffolds have great potential in tissue engineering. However, there are still challenges in preparing porous hydrogels with tunable pore size and controlled porosity. Here, we successfully established a photoinduced gas-foaming method of porous hydrogels with controlled macro-micro-nano multiscale. A diazirine (DZ)-modified gelatin (GelDZ) biomaterial was prepared by introducing photocrosslinked DZ group into gelatin. Upon exposure to 365 nm UV light, DZ could be converted to the active group carbene, which could randomly insert into OH, NH, or CH bonds to form covalent crosslinks. GelDZ generated N2 by photodegradation and formed gas-induced porous hydrogels by intermolecular crosslinking without initiator. The loose porous structure of the hydrogel can promote the infiltration of host cells and blood vessels, which was conducive to tissue repair. The interfacial crosslinking of photoactivated GelDZ with tissue proteins imparted adhesion properties to the hydrogel. GelDZ also possessed photoreduction ability, which can reduce silver ions from metal precursors to silver nanoparticles (Ag NPs) in situ, and showed great antibacterial activity due to the sustained release of Ag NPs. GelDZ-Ag NPs prepared by in situ photoreaction can effectively inhibit wound infection and promote skin wound healing, providing a new strategy for designing porous hydrogel in tissue engineering.
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Affiliation(s)
- Yuwen Chen
- West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu, 610041, Sichuan Province, China; Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Rong Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of pharmacy, Chengdu University, Chengdu, 610106, Sichuan Province, China
| | - Bo Li
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Ka Li
- West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu, 610041, Sichuan Province, China.
| | - Ying Hao
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
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18
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Baran MJ, Hof R, Groot A, Eurlings I, Gijsbrechts J, de Jong B, Wulff JE. Safety Evaluation of a Prototypical Diazirine-Based Covalent Crosslinker and Molecular Adhesive. Int J Toxicol 2024; 43:146-156. [PMID: 37987615 PMCID: PMC10916352 DOI: 10.1177/10915818231215692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
bis-Diazirine reagents are increasingly being used as polymer crosslinkers, adhesives, and photopatterning agents in the materials sciences literature, but little effort has been made thus far to document their chemical safety profile. Here, we describe the results of a detailed toxicity assessment of a representative bis-diazirine. Safety was evaluated by a series of in vitro assays, which found the product to be non-mutagenic in bacterial tester strains TA98 and TA100, non-corrosive and non-irritating to skin, and requiring no classification for eye irritation or serious damage. While in vitro tests do not capture the integrated whole animal system, and thus cannot completely rule out the possibility of adverse responses, the results of this study suggest a desirable safety profile for bis-diazirine reagents and provide a solid foundation upon which to add in vivo assessment of safety risk and dose-response studies.
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Affiliation(s)
| | - Rebecca Hof
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, Victoria, BC, Canada
| | - Angelique Groot
- Charles River Laboratories Den Bosch BV, ‘s-Hertogenbosch, The Netherlands
| | - Irene Eurlings
- Charles River Laboratories Den Bosch BV, ‘s-Hertogenbosch, The Netherlands
| | - Jet Gijsbrechts
- Charles River Laboratories Den Bosch BV, ‘s-Hertogenbosch, The Netherlands
| | - Britt de Jong
- Charles River Laboratories Den Bosch BV, ‘s-Hertogenbosch, The Netherlands
| | - Jeremy E. Wulff
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, Victoria, BC, Canada
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19
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Wang L, Gao L, Li B, Hu B, Xu T, Lin H, Zhu R, Hu BL, Li RW. High-Curie-Temperature Elastic Polymer Ferroelectric by Carbene Cross-Linking. J Am Chem Soc 2024; 146:5614-5621. [PMID: 38354217 DOI: 10.1021/jacs.3c14310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
With the emergence of wearable electronics, ferroelectrics are poised to serve as key components for numerous potential applications. Currently, intrinsically elastic ferroelectrics featuring a network structure through a precise "slight cross-linking" approach have been realized. The resulting elastic ferroelectrics demonstrate a combination of stable ferroelectric properties and remarkable resilience under various strains. However, challenges arose as the cross-linking temperature was too high when integrating ferroelectrics with other functional materials, and the Curie temperature of this elastic ferroelectric was comparatively low. Addressing these challenges, we strategically chose a poly(vinylidene fluoride)-based copolymer with high vinylidene fluoride content to obtain a high Curie temperature while synthesizing a cross-linker with carbene intermediate for high reactivity to reduce the cross-linking temperature. At a relatively low temperature, we successfully fabricated elastic ferroelectrics through carbene cross-linking. The resulting elastic polymer ferroelectrics exhibit a higher Curie temperature and show a stable ferroelectric response under strains up to 50%. These materials hold significant potential for integration into wearable electronics.
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Affiliation(s)
- Linping Wang
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Liang Gao
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China
| | - Bowen Li
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Bing Hu
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
| | - Tianhua Xu
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huang Lin
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China
| | - Ren Zhu
- Oxford Instruments Asylum Research, Shanghai 200233, China
| | - Ben-Lin Hu
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Run-Wei Li
- CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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20
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Vialon T, Sun H, Formon GJM, Galanopoulo P, Guibert C, Averseng F, Rager MN, Percot A, Guillaneuf Y, Van Zee NJ, Nicolaÿ R. Upcycling Polyolefin Blends into High-Performance Materials by Exploiting Azidotriazine Chemistry Using Reactive Extrusion. J Am Chem Soc 2024; 146:2673-2684. [PMID: 38238037 DOI: 10.1021/jacs.3c12303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The revalorization of incompatible polymer blends is a key obstacle in realizing a circular economy in the plastics industry. Polyolefin waste is particularly challenging because it is difficult to sort into its constituent components. Untreated blends of polyethylene and polypropylene typically exhibit poor mechanical properties that are suitable only for low-value applications. Herein, we disclose a simple azidotriazine-based grafting agent that enables polyolefin blends to be directly upcycled into high-performance materials by using reactive extrusion at industrially relevant processing temperatures. Based on a series of model experiments, the azidotriazine thermally decomposes to form a triplet nitrene species, which subsequently undergoes a complex mixture of grafting, oligomerization, and cross-linking reactions; strikingly, the oligomerization and cross-linking reactions proceed through the formation of nitrogen-nitrogen bonds. When applied to polyolefin blends during reactive extrusion, this combination of reactions leads to the generation of amorphous, phase-separated nanostructures that tend to exist at polymer-polymer interfaces. These nanostructures act as multivalent cross-linkers that reinforce the resulting material, leading to dramatically improved ductility compared with the untreated blends, along with high dimensional stability at high temperatures and excellent mechanical recyclability. We propose that this unique behavior is derived from the thermomechanically activated reversibility of the nitrogen-nitrogen bonds that make up the cross-linking structures. Finally, the scope of this chemistry is demonstrated by applying it to ternary polyolefin blends as well as postconsumer polyolefin feedstocks.
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Affiliation(s)
- Thomas Vialon
- Chimie Moléculaire, Macromoléculaire, Matériaux, ESPCI Paris, Université PSL, CNRS, 75005Paris ,France
| | - Huidi Sun
- Chimie Moléculaire, Macromoléculaire, Matériaux, ESPCI Paris, Université PSL, CNRS, 75005Paris ,France
| | - Georges J M Formon
- Chimie Moléculaire, Macromoléculaire, Matériaux, ESPCI Paris, Université PSL, CNRS, 75005Paris ,France
| | - Paul Galanopoulo
- Chimie Moléculaire, Macromoléculaire, Matériaux, ESPCI Paris, Université PSL, CNRS, 75005Paris ,France
| | - Clément Guibert
- Laboratoire de Réactivité de Surface, UMR 7197, Sorbonne Université, CNRS, 75005 Paris, France
| | - Frédéric Averseng
- Laboratoire de Réactivité de Surface, UMR 7197, Sorbonne Université, CNRS, 75005 Paris, France
| | - Marie-Noelle Rager
- NMR Facility, Chimie ParisTech, Université PSL, CNRS, 75005Paris ,France
| | - Aline Percot
- MONARIS, UMR 8233, Sorbonne Université, CNRS, 75005Paris ,France
| | - Yohann Guillaneuf
- Institut de Chimie Radicalaire UMR 7273,Aix-Marseille Université, CNRS, 13397Marseille ,France
| | - Nathan J Van Zee
- Chimie Moléculaire, Macromoléculaire, Matériaux, ESPCI Paris, Université PSL, CNRS, 75005Paris ,France
| | - Renaud Nicolaÿ
- Chimie Moléculaire, Macromoléculaire, Matériaux, ESPCI Paris, Université PSL, CNRS, 75005Paris ,France
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21
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Li J, Bi L, Musolino SF, Wulff JE, Sask KN. Functionalization of Polydimethylsiloxane with Diazirine-Based Linkers for Covalent Protein Immobilization. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1-16. [PMID: 38149968 DOI: 10.1021/acsami.3c08013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Biomolecule attachment to solid supports is critical for biomedical devices, such as biosensors and implants. Polydimethylsiloxane (PDMS) is commonly used for these applications due to its advantageous properties. To enhance the biomolecule immobilization on PDMS, a novel technique is demonstrated using newly synthesized diazirine molecules for the surface modification of PDMS. This nondestructive process involves a reaction between diazirine molecules and PDMS through C-H insertion with thermal or ultraviolet activation. The success of the PDMS modification is confirmed by various surface characterization techniques. Bovine serum albumin (BSA) and immunoglobulin G (IgG) are strongly attached to the modified PDMS surfaces, and the amount of protein is quantified using iodine-125 radiolabeling. The results demonstrate that PDMS is rapidly functionalized, and the stability of the immobilized proteins is significantly improved with multiple types of diazirine molecules and activation methods. Confocal microscopy provides three-dimensional images of the distribution of immobilized IgG on the surfaces and the penetration of diazirine-based linkers through the PDMS substrate during the coating process. Overall, this study presents a promising new approach for functionalizing PDMS surfaces to enhance biomolecule immobilization, and its potential applications can extend to multimaterial modifications for various diagnostic and medical applications such as microfluidic devices and immunoassays with relevant bioactive proteins.
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Affiliation(s)
- Jie Li
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario L8S 4L2, Canada
| | - Liting Bi
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8W 3V6, Canada
| | - Stefania F Musolino
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8W 3V6, Canada
| | - Jeremy E Wulff
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8W 3V6, Canada
| | - Kyla N Sask
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario L8S 4L2, Canada
- Department of Materials Science & Engineering, McMaster University, Hamilton, Ontario L8S 4L8, Canada
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22
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Ahn N, Choi M. Towards Long-Term Stable Perovskite Solar Cells: Degradation Mechanisms and Stabilization Techniques. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306110. [PMID: 37997198 PMCID: PMC10811515 DOI: 10.1002/advs.202306110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/22/2023] [Indexed: 11/25/2023]
Abstract
It is certain that perovskite materials must be a game-changer in the solar industry as long as their stability reaches a level comparable with the lifetime of a commercialized Si photovoltaic. However, the operational stability of perovskite solar cells and modules still remains unresolved, especially when devices operate in practical energy-harvesting modes represented by maximum power point tracking under 1 sun illumination at ambient conditions. This review article covers from fundamental aspects of perovskite instability including chemical decomposition pathways under light soaking and electrical bias, to recent advances and techniques that effectively prevent such degradation of perovskite solar cells and modules. In particular, fundamental causes for permanent degradation due to ion migration and trapped charges are overviewed and explain their interplay between ions and charges. Based on the degradation mechanism, recent advances on the strategies are discussed to slow down the degradation during operation for a practical use of perovskite-based solar devices.
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Affiliation(s)
- Namyoung Ahn
- Chemistry DivisionLos Alamos National LaboratoryLos AlamosNM87544USA
| | - Mansoo Choi
- Global Frontier Center for Multiscale Energy SystemsSeoul National UniversitySeoul08826Republic of Korea
- Department of Mechanical EngineeringSeoul National UniversitySeoul08826Republic of Korea
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23
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Neidhart EK, Hua M, Peng Z, Kearney LT, Bhat V, Vashahi F, Alexanian EJ, Sheiko SS, Wang C, Helms BA, Leibfarth FA. C-H Functionalization of Polyolefins to Access Reprocessable Polyolefin Thermosets. J Am Chem Soc 2023; 145:27450-27458. [PMID: 38079611 DOI: 10.1021/jacs.3c08682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Upcycling plastic waste into reprocessable materials with performance-advantaged properties would contribute to the development of a circular plastics economy. Here, we modify branched polyolefins and postconsumer polyethylene through a versatile C-H functionalization approach using thiosulfonates as a privileged radical group transfer functionality. Cross-linking the functionalized polyolefins with polytopic amines provided dynamically cross-linked polyolefin networks enabled by associative bond exchange of diketoenamine functionality. A combination of resonant soft X-ray scattering and grazing incidence X-ray scattering revealed hierarchical phase morphology in which diketoenamine-rich microdomains phase-separate within amorphous regions between polyolefin crystallites. The combination of dynamic covalent cross-links and microphase separation results in useful and improved mechanical properties, including a ∼4.5-fold increase in toughness, a reduction in creep deformation at temperatures relevant to use, and high-temperature structural stability compared to the parent polyolefin. The dynamic nature of diketoenamine cross-links provides stress relaxation at elevated temperatures, which enabled iterative reprocessing of the dynamic covalent polymer network with little cycle-to-cycle property fade. The ability to convert polyolefin waste into a reprocessable thermoformable material with attractive thermomechanical properties provides additional optionality for upcycling to enable future circularity.
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Affiliation(s)
- Eliza K Neidhart
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Mutian Hua
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Zhengxing Peng
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Logan T Kearney
- Chemical Science Division, Oak Ridge National Lab, Oak Ridge, Tennessee 37830, United States
| | - Vittal Bhat
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Foad Vashahi
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Erik J Alexanian
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Sergei S Sheiko
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Cheng Wang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Brett A Helms
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Frank A Leibfarth
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
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24
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de Zwart FJ, Wolzak LA, Laan PCM, Mathew S, Flapper J, van den Berg KJ, Reek JNH, de Bruin B. Thermal/Blue Light Induced Cross-Linking of Acrylic Coatings with Diazo Compounds. Macromol Rapid Commun 2023; 44:e2300380. [PMID: 37595267 DOI: 10.1002/marc.202300380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/14/2023] [Indexed: 08/20/2023]
Abstract
The thermal curing of industrial coatings (e.g., car painting and metal coil coatings) is accompanied by a substantial energy consumption due to the intrinsically high temperatures required during the curing process. Therefore, the development of new photochemical curing processes-preferably using visible light-is in high demand. This work describes new diazo-based cross-linkers that can be used to photocure acrylic coatings using blue light. This work demonstrates that the structure of the tethered diazo compounds influences the cross-linking efficiency, finding that side reactions are suppressed upon engineering greater molecular flexibility. Importantly, this work shows that these diazo compounds can be employed as either thermal or photochemical cross-linkers, exhibiting identical crosslinking performances. The performance of diazo-cross-linked coatings is evaluated to reveal excellent water resistance and demonstrably similar material properties to UV-cured acrylates. These studies pave the way for further usage of diazo-functionalized cross-linkers in the curing of paints and coatings.
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Affiliation(s)
- Felix J de Zwart
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Amsterdam, Amsterdam, 1098 XH, The Netherlands
| | - Lukas A Wolzak
- Akzo Nobel Car Refinishes B.V., Sassenheim, 2171 AJ, The Netherlands
| | - Petrus C M Laan
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Amsterdam, Amsterdam, 1098 XH, The Netherlands
| | - Simon Mathew
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Amsterdam, Amsterdam, 1098 XH, The Netherlands
| | - Jitte Flapper
- Akzo Nobel Decorative Coatings B.V., Sassenheim, 2171 AJ, The Netherlands
| | | | - Joost N H Reek
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Amsterdam, Amsterdam, 1098 XH, The Netherlands
| | - Bas de Bruin
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Amsterdam, Amsterdam, 1098 XH, The Netherlands
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25
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Xu W, Wang D, Guo Q, Zhu S, Zhang L, Wang T, Moloney MG, Du W. Robust Sub-5 Nanometer bis(Diarylcarbene)-Based Thin Film for Molecular Electronics and Plasmonics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303057. [PMID: 37266891 DOI: 10.1002/adma.202303057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/14/2023] [Indexed: 06/03/2023]
Abstract
In miniaturized electronic and optoelectronic circuits, molecular tunnel junctions have attracted enormous research interest due to their small footprint, low power consumption, and rich molecular functions. However, the most popular building blocks used in contemporary molecular tunnel junctions are thiol molecules, which attach to electrode surfaces via a metal-thiolate (MS) bond, showing low stability and usually quick degradation within several days. To pave the way for more widely applicable and stable molecular tunnel junctions, there is a need to develop new molecular anchoring groups. Here, this work demonstrates robust and air-stable molecular tunnel junctions with a sub-5 nanometer bis(diarylcarbene)-based thin film as the tunneling barrier, which anchors to the electrode surface via a AuC bond. The bis(diarylcarbene)-based molecular tunnel junctions exhibit high thermal stability against heating up to 200 °C and long storage lifetime over 5 months in an ambient environment. Both electrical and optical performance of these bis(diarylcarbene)-based molecular junctions are characterized systematically, showing similar behaviors to thiol-based junctions as well as largely improved emission stability. This research highlights the excellent performance of bis(diarylcarbene)-based molecular tunnel junctions, which could be useful for applications in molecular electronics and plasmonics.
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Affiliation(s)
- Wenrui Xu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu, 215123, P. R. China
| | - Dandan Wang
- Oxford Suzhou Centre for Advanced Research, Building A, 388 Ruo Shui Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
| | - Qianqian Guo
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu, 215123, P. R. China
| | - Shu Zhu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu, 215123, P. R. China
| | - Lan Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu, 215123, P. R. China
| | - Tao Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu, 215123, P. R. China
| | - Mark G Moloney
- Oxford Suzhou Centre for Advanced Research, Building A, 388 Ruo Shui Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Wei Du
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu, 215123, P. R. China
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26
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Tian R, Gao S, Li K, Lu C. Design of mechanical-robust phosphorescence materials through covalent click reaction. Nat Commun 2023; 14:4720. [PMID: 37543603 PMCID: PMC10404264 DOI: 10.1038/s41467-023-40451-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/28/2023] [Indexed: 08/07/2023] Open
Abstract
It remains a great challenge to engineer materials with strong and stable interactions for the simultaneously mechanical-robust and room temperature phosphorescence-efficient materials. In this work, we demonstrate a covalent cross-linking strategy to engineer mechanical-robust room temperature phosphorescence materials through the B-O click reaction between chromophores, polyvinyl alcohol matrix and inorganic layered double hydroxide nanosheets. Through the covalent cross-linkage between the organic polyvinyl alcohol and inorganic layered double hydroxide, a polymeric composite with ultralong lifetime up to 1.45 s is acquired based on the inhibited non-radiative transition of chromophores. Simultaneously, decent mechanical strength of 97.9 MPa can be realized for the composite materials due to the dissipated loading stress through the covalent-bond-accommodated interfacial interaction. These cross-linked composites also exhibit flexibility, processability, scalability and phosphorescence responses towards the mechanical deformation. It is anticipated that the proposed covalent click reaction could provide a platform for the design and modulation of composites with multi-functionality and long-term durability.
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Affiliation(s)
- Rui Tian
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, North, Third Ring Road 15, Chaoyang District, Beijing, China.
| | - Shuo Gao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, North, Third Ring Road 15, Chaoyang District, Beijing, China
| | - Kaitao Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, North, Third Ring Road 15, Chaoyang District, Beijing, China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, North, Third Ring Road 15, Chaoyang District, Beijing, China.
- Green Catalysis Center, College of Chemistry, Zhengzhou University, No.100 Science Avenue, Zhengzhou, China.
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27
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Wang S, Cao Z, Zhang X, Yu H, Yao L. An Engineering Method for Resonant Microcantilever Using Double-Channel Excitation and Signal Acquisition Based on LabVIEW. MICROMACHINES 2023; 14:823. [PMID: 37421056 DOI: 10.3390/mi14040823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/02/2023] [Accepted: 04/04/2023] [Indexed: 07/09/2023]
Abstract
Resonant microcantilevers have the advantages of ultra-high heating rates, analysis speed, ultra-low power consumption, temperature programming, and trace sample analysis when applied in TGA. However, the current single-channel testing system for resonant microcantilevers can only detect one sample at a time, and need two program heating tests to obtain the thermogravimetric curve of a sample. In many cases, it is desirable to obtain the thermogravimetric curve of a sample with a single-program heating test and to simultaneously detect multiple microcantilevers for testing multiple samples. To address this issue, this paper proposes a dual-channel testing method, where a microcantilever is used as a control group and another microcantilever is used as an experimental group, to obtain the thermal weight curve of the sample in a single program temperature ramp test. With the help of the LabVIEW's convenient parallel running method, the functionality of simultaneously detecting two microcantilevers is achieved. Experimental validation showed that this dual-channel testing system can obtain the thermogravimetric curve of a sample with a single program heating test and detect two types of samples simultaneously.
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Affiliation(s)
- Shanlai Wang
- School of Microelectronics, Shanghai University, Shanghai 200444, China
| | - Zhi Cao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Xiaoyang Zhang
- School of Microelectronics, Shanghai University, Shanghai 200444, China
| | - Haitao Yu
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Lei Yao
- School of Microelectronics, Shanghai University, Shanghai 200444, China
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28
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Yao Z, Lundqvist E, Kuang Y, Ardoña HAM. Engineering Multi-Scale Organization for Biotic and Organic Abiotic Electroactive Systems. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205381. [PMID: 36670065 PMCID: PMC10074131 DOI: 10.1002/advs.202205381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Multi-scale organization of molecular and living components is one of the most critical parameters that regulate charge transport in electroactive systems-whether abiotic, biotic, or hybrid interfaces. In this article, an overview of the current state-of-the-art for controlling molecular order, nanoscale assembly, microstructure domains, and macroscale architectures of electroactive organic interfaces used for biomedical applications is provided. Discussed herein are the leading strategies and challenges to date for engineering the multi-scale organization of electroactive organic materials, including biomolecule-based materials, synthetic conjugated molecules, polymers, and their biohybrid analogs. Importantly, this review provides a unique discussion on how the dependence of conduction phenomena on structural organization is observed for electroactive organic materials, as well as for their living counterparts in electrogenic tissues and biotic-abiotic interfaces. Expansion of fabrication capabilities that enable higher resolution and throughput for the engineering of ordered, patterned, and architecture electroactive systems will significantly impact the future of bioelectronic technologies for medical devices, bioinspired harvesting platforms, and in vitro models of electroactive tissues. In summary, this article presents how ordering at multiple scales is important for modulating transport in both the electroactive organic, abiotic, and living components of bioelectronic systems.
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Affiliation(s)
- Ze‐Fan Yao
- Department of Chemical and Biomolecular EngineeringSamueli School of EngineeringUniversity of CaliforniaIrvineCA92697USA
- Department of ChemistrySchool of Physical SciencesUniversity of CaliforniaIrvineCA92697USA
| | - Emil Lundqvist
- Department of Biomedical EngineeringSamueli School of EngineeringUniversity of CaliforniaIrvineCA92697USA
| | - Yuyao Kuang
- Department of Chemical and Biomolecular EngineeringSamueli School of EngineeringUniversity of CaliforniaIrvineCA92697USA
| | - Herdeline Ann M. Ardoña
- Department of Chemical and Biomolecular EngineeringSamueli School of EngineeringUniversity of CaliforniaIrvineCA92697USA
- Department of ChemistrySchool of Physical SciencesUniversity of CaliforniaIrvineCA92697USA
- Department of Biomedical EngineeringSamueli School of EngineeringUniversity of CaliforniaIrvineCA92697USA
- Sue & Bill Gross Stem Cell Research CenterUniversity of CaliforniaIrvineCA92697USA
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29
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Lepage ML, Wulff JE. Mixed plastics upcycled dynamically. Nature 2023; 616:663-664. [PMID: 37100936 DOI: 10.1038/d41586-023-01352-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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30
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Clarke RW, Sandmeier T, Franklin KA, Reich D, Zhang X, Vengallur N, Patra TK, Tannenbaum RJ, Adhikari S, Kumar SK, Rovis T, Chen EYX. Dynamic crosslinking compatibilizes immiscible mixed plastics. Nature 2023; 616:731-739. [PMID: 37100943 DOI: 10.1038/s41586-023-05858-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 02/16/2023] [Indexed: 04/28/2023]
Abstract
The global plastics problem is a trifecta, greatly affecting environment, energy and climate1-4. Many innovative closed/open-loop plastics recycling or upcycling strategies have been proposed or developed5-16, addressing various aspects of the issues underpinning the achievement of a circular economy17-19. In this context, reusing mixed-plastics waste presents a particular challenge with no current effective closed-loop solution20. This is because such mixed plastics, especially polar/apolar polymer mixtures, are typically incompatible and phase separate, leading to materials with substantially inferior properties. To address this key barrier, here we introduce a new compatibilization strategy that installs dynamic crosslinkers into several classes of binary, ternary and postconsumer immiscible polymer mixtures in situ. Our combined experimental and modelling studies show that specifically designed classes of dynamic crosslinker can reactivate mixed-plastics chains, represented here by apolar polyolefins and polar polyesters, by compatibilizing them via dynamic formation of graft multiblock copolymers. The resulting in-situ-generated dynamic thermosets exhibit intrinsic reprocessability and enhanced tensile strength and creep resistance relative to virgin plastics. This approach avoids the need for de/reconstruction and thus potentially provides an alternative, facile route towards the recovery of the endowed energy and materials value of individual plastics.
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Affiliation(s)
- Ryan W Clarke
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | | | - Kevin A Franklin
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | - Dominik Reich
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Xiao Zhang
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Nayan Vengallur
- Department of Chemical Engineering, Center for Carbon Capture Utilization and Storage, and Center for Atomistic Modeling and Materials Design, India Institute of Technology Madras, Chennai, India
| | - Tarak K Patra
- Department of Chemical Engineering, Center for Carbon Capture Utilization and Storage, and Center for Atomistic Modeling and Materials Design, India Institute of Technology Madras, Chennai, India
| | | | - Sabin Adhikari
- Department of Chemical Engineering, Columbia University, New York, NY, USA
| | - Sanat K Kumar
- Department of Chemical Engineering, Columbia University, New York, NY, USA.
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York, NY, USA.
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA.
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31
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Wang D, Hartz WF, Moloney MG. Surface modified materials for active capture of enzymes. J Mater Chem B 2023; 11:2377-2388. [PMID: 36794991 DOI: 10.1039/d2tb02550g] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The insertion of bis(diarylcarbene)s onto a glass fiber (GF) membrane surface provided an active coating for the direct capture of protein - exemplified by the enzyme, cellulase - through a mild diazonium coupling process which does not require additional coupling agents. Successful cellulase attachment on the surface was demonstrated by the disappearance of diazonium and formation of azo functions in the N 1s high resolution spectra, the appearance of carboxyl group in C 1s spectra, both observed by XPS; the -CO vibrational bond observed by ATR-IR; as well as the observation of fluorescence. Further, five support materials (polystyrene XAD4 bead, polyacrylate MAC3 bead, glass wool, glass fiber membrane, polytetrafluoroethylene membrane) with different morphology and surface chemistry, were examined in detail as supports for cellulase immobilization using this common surface modification protocol. Of interest is that such covalently bound cellulase on modified GF membrane gave both the highest enzyme loading (∼23 mg cellulase per g support), and retained more than 90% of activity after 6 cycles of re-use, compared with substantial loss of enzyme activity for physiosorbed cellulase after 3 cycles. Optimization of the degree of surface grafting and the effectiveness of a spacer between surface and enzyme for enzyme loading and activity were conducted. This work shows that carbene surface modification is a viable strategy for introducing enzymes onto a surface under very mild conditions and retaining a meaningful level of activity, and particularly, using GF membrane as a novel support provides a potential platform for enzyme and protein immobilization.
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Affiliation(s)
- Dandan Wang
- Oxford Suzhou Centre for Advanced Research, Building A, 388 Ruo Shui Road, Suzhou Industrial Park, Jiangsu, 215123, P. R. China.
| | - William F Hartz
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Mark G Moloney
- Oxford Suzhou Centre for Advanced Research, Building A, 388 Ruo Shui Road, Suzhou Industrial Park, Jiangsu, 215123, P. R. China. .,Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
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32
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Shiraki Y, Saito M, Yamada NL, Ito K, Yokoyama H. Adhesion to Untreated Polyethylene and Polypropylene by Needle-like Polyolefin Crystals. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Yoshihiko Shiraki
- Polyurethane Research Laboratory, Tosoh Corporation, 1-8, Kasumi, Yokkaichi, Mie 510-8540, Japan
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 227-8561, Japan
| | - Masayuki Saito
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 227-8561, Japan
| | - Norifumi L. Yamada
- Institute of Materials Structure Science, High Energy Accelerator Research Organization, Ibaraki 305-0801, Japan
| | - Kohzo Ito
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 227-8561, Japan
| | - Hideaki Yokoyama
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 227-8561, Japan
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33
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In-situ forming dynamic covalently crosslinked nanofibers with one-pot closed-loop recyclability. Nat Commun 2023; 14:1182. [PMID: 36864024 PMCID: PMC9981754 DOI: 10.1038/s41467-023-36709-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 02/13/2023] [Indexed: 03/04/2023] Open
Abstract
Polymeric nanofibers are attractive nanomaterials owing to their high surface-area-to-volume ratio and superior flexibility. However, a difficult choice between durability and recyclability continues to hamper efforts to design new polymeric nanofibers. Herein, we integrate the concept of covalent adaptable networks (CANs) to produce a class of nanofibers ⎯ referred to dynamic covalently crosslinked nanofibers (DCCNFs) via electrospinning systems with viscosity modulation and in-situ crosslinking. The developed DCCNFs possess homogeneous morphology, flexibility, mechanical robustness, and creep resistance, as well as good thermal and solvent stability. Moreover, to solve the inevitable issues of performance degradation and crack of nanofibrous membranes, DCCNF membranes can be one-pot closed-loop recycled or welded through thermal-reversible Diels-Alder reaction. This study may unlock strategies to fabricate the next generation nanofibers with recyclable features and consistently high performance via dynamic covalent chemistry for intelligent and sustainable applications.
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34
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Moon SH, Hwang HJ, Jeon HR, Park SJ, Bae IS, Yang YJ. Photocrosslinkable natural polymers in tissue engineering. Front Bioeng Biotechnol 2023; 11:1127757. [PMID: 36970625 PMCID: PMC10037533 DOI: 10.3389/fbioe.2023.1127757] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Natural polymers have been widely used in scaffolds for tissue engineering due to their superior biocompatibility, biodegradability, and low cytotoxicity compared to synthetic polymers. Despite these advantages, there remain drawbacks such as unsatisfying mechanical properties or low processability, which hinder natural tissue substitution. Several non-covalent or covalent crosslinking methods induced by chemicals, temperatures, pH, or light sources have been suggested to overcome these limitations. Among them, light-assisted crosslinking has been considered as a promising strategy for fabricating microstructures of scaffolds. This is due to the merits of non-invasiveness, relatively high crosslinking efficiency via light penetration, and easily controllable parameters, including light intensity or exposure time. This review focuses on photo-reactive moieties and their reaction mechanisms, which are widely exploited along with natural polymer and its tissue engineering applications.
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Affiliation(s)
- Seo Hyung Moon
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, Republic of Korea
| | - Hye Jin Hwang
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, Republic of Korea
| | - Hye Ryeong Jeon
- Department of Biological Engineering, Inha University, Incheon, Republic of Korea
| | - Sol Ji Park
- Department of Biological Engineering, Inha University, Incheon, Republic of Korea
| | - In Sun Bae
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, Republic of Korea
| | - Yun Jung Yang
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, Republic of Korea
- Department of Biological Engineering, Inha University, Incheon, Republic of Korea
- *Correspondence: Yun Jung Yang,
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35
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Zhang D, Vashahi F, Dashtimoghadam E, Hu X, Wang CJ, Garcia J, Bystrova AV, Vatankhah-Varnoosfaderani M, Leibfarth FA, Sheiko SS. Circular Upcycling of Bottlebrush Thermosets. Angew Chem Int Ed Engl 2023; 62:e202217941. [PMID: 36583627 DOI: 10.1002/anie.202217941] [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: 12/06/2022] [Revised: 12/22/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
The inability to re-process thermosets hinders their utility and sustainability. An ideal material should combine closed-loop recycling and upcycling capabilities. This trait is realized in polydimethylsiloxane bottlebrush networks using thermoreversible Diels-Alder cycloadditions to enable both reversible disassembly into a polymer melt and on-demand reconfiguration to an elastomer of either lower or higher stiffness. The crosslink density was tuned by loading the functionalized networks with a controlled fraction of dormant crosslinkers and crosslinker scavengers, such as furan-capped bis-maleimide and anthracene, respectively. The resulting modulus variations precisely followed the stoichiometry of activated furan and maleimide moieties, demonstrating the lack of side reactions during reprocessing. The presented circularity concept is independent from the backbone or side chain chemistry, making it potentially applicable to a wide range of brush-like polymers.
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Affiliation(s)
- Daixuan Zhang
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Foad Vashahi
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Erfan Dashtimoghadam
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Xiaobo Hu
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Claire J Wang
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jessica Garcia
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Aleksandra V Bystrova
- A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, Moscow, 119334, Russian Federation
| | | | - Frank A Leibfarth
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Sergei S Sheiko
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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36
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Murai Y, Hashimoto M. Heteroaromatic Diazirines Are Essential Building Blocks for Material and Medicinal Chemistry. Molecules 2023; 28:molecules28031408. [PMID: 36771073 PMCID: PMC9921084 DOI: 10.3390/molecules28031408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/26/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
In materials (polymer) science and medicinal chemistry, heteroaromatic derivatives play the role of the central skeleton in development of novel devices and discovery of new drugs. On the other hand, (3-trifluoromethyl)phenyldiazirine (TPD) is a crucial chemical method for understanding biological processes such as ligand-receptor, nucleic acid-protein, lipid-protein, and protein-protein interactions. In particular, use of TPD has increased in recent materials science to create novel electric and polymer devices with comparative ease and reduced costs. Therefore, a combination of heteroaromatics and (3-trifluoromethyl)diazirine is a promising option for creating better materials and elucidating the unknown mechanisms of action of bioactive heteroaromatic compounds. In this review, a comprehensive synthesis of (3-trifluoromethyl)diazirine-substituted heteroaromatics is described.
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Affiliation(s)
- Yuta Murai
- Graduate School of Life Science, Hokkaido University, Kita 21, Nishi 11, Kita-ku, Sapporo 001-0021, Japan
- Faculty of Advanced Life Science, Hokkaido University, Kita 21, Nishi 11, Kita-ku, Sapporo 001-0021, Japan
- Correspondence: (Y.M.); (M.H.); Tel.: +81-11-706-9030 (Y.M.); +81-11-706-3849 (M.H.)
| | - Makoto Hashimoto
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
- Correspondence: (Y.M.); (M.H.); Tel.: +81-11-706-9030 (Y.M.); +81-11-706-3849 (M.H.)
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37
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Crystallinity effect on electron-induced molecular structure transformations in additive-free PLA. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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38
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Li F, Chen C, Lu S, Chen X, Liu W, Weng K, Fu Z, Liu D, Zhang L, Abudukeremu H, Lin L, Wang Y, Zhong M, Zhang H, Li J. Direct Patterning of Colloidal Nanocrystals via Thermally Activated Ligand Chemistry. ACS NANO 2022; 16:13674-13683. [PMID: 35867875 DOI: 10.1021/acsnano.2c04033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Precise patterning with microscale lateral resolution and widely tunable heights is critical for integrating colloidal nanocrystals into advanced optoelectronic and photonic platforms. However, patterning nanocrystal layers with thickness above 100 nm remains challenging for both conventional and emerging direct photopatterning methods, due to limited light penetration depths, complex mechanical and chemical incompatibilities, and others. Here, we introduce a direct patterning method based on a thermal mechanism, namely, the thermally activated ligand chemistry (or TALC) of nanocrystals. The ligand cross-linking or decomposition reactions readily occur under local thermal stimuli triggered by near-infrared lasers, affording high-resolution and nondestructive patterning of various nanocrystals under mild conditions. Patterned quantum dots fully preserve their structural and photoluminescent quantum yields. The thermal nature allows for TALC to pattern over 10 μm thick nanocrystal layers in a single step, far beyond those achievable in other direct patterning techniques, and also supports the concept of 2.5D patterning. The thermal chemistry-mediated TALC creates more possibilities in integrating nanocrystal layers in uniform arrays or complex hierarchical formats for advanced capabilities in light emission, conversion, and modulation.
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Affiliation(s)
- Fu Li
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Changhao Chen
- School of Materials Science, Tsinghua University, Beijing 100084, China
| | - Shaoyong Lu
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Xueguang Chen
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
| | - Wangyu Liu
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Kangkang Weng
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Zhong Fu
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Dan Liu
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Lipeng Zhang
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Hannikezi Abudukeremu
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Linhan Lin
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
| | - Yuanyuan Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Minlin Zhong
- School of Materials Science, Tsinghua University, Beijing 100084, China
| | - Hao Zhang
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Jinghong Li
- Department of Chemistry, Center for BioAnalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
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39
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Hybrid polymer networks of carbene and thiol ene. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Musolino S, Shatila F, Tieman GM, Masarsky AC, Thibodeau MC, Wulff JE, Buckley HL. Light-Induced Anti-Bacterial Effect Against Staphylococcus aureus of Porphyrin Covalently Bonded to a Polyethylene Terephthalate Surface. ACS OMEGA 2022; 7:29517-29525. [PMID: 36033695 PMCID: PMC9404523 DOI: 10.1021/acsomega.2c04294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Antimicrobial photodynamic inactivation represents a promising and potentially greener alternative to conventional antimicrobials, and a solution for multidrug-resistant strains. The current study reports the development and characterization of tetra-substituted diazirine porphyrin covalently bonded to polyethylene terephthalate (PET) and its use as an antimicrobial surface. The diazirine moiety on the porphyrin was activated using a temperature of 120 °C, which initiated a C-H insertion mechanism that irreversibly functionalized the PET surface. Activation of the surface with white LED light in phosphate-buffered saline (PBS) led to singlet oxygen generation, which was detected via the degradation of 9,10-anthracenediylbis(methylene)dimalonic acid (ADMA) over time. The bactericidal effect of the 1O2-producing surface against Staphylococcus aureus was determined qualitatively and quantitatively. The growth of the pathogen beneath porphyrin-functionalized PET coupons was reduced; moreover, the PET coupons resulted in a 1.76-log reduction in cell counts after exposure to white LED light for 6 h. This is a promising material and platform for the development of safer antimicrobial surfaces, with applications in healthcare, food packaging, marine surfaces, and other surfaces in the environment.
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Affiliation(s)
- Stefania
F. Musolino
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Fatima Shatila
- Department
of Civil Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Grace M.O. Tieman
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
- Institute
for Integrated Energy Systems (IESVic), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Anna C. Masarsky
- Department
of Civil Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Matthew C. Thibodeau
- Department
of Civil Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Jeremy E. Wulff
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Heather L. Buckley
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Department
of Civil Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
- Institute
for Integrated Energy Systems (IESVic), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
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41
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Zhao K, Liu Y, Ren Y, Li B, Li J, Wang F, Ma C, Ye F, Sun J, Zhang H, Liu K. Molecular Engineered Crown‐Ether‐Protein with Strong Adhesion over a Wide Temperature Range from −196 to 200 °C. Angew Chem Int Ed Engl 2022; 61:e202207425. [DOI: 10.1002/anie.202207425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Indexed: 12/11/2022]
Affiliation(s)
- Kelu Zhao
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun China
- University of Science and Technology of China 230026 Hefei China
| | - Yawei Liu
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun China
| | - Yubin Ren
- Department of Chemistry Tsinghua University 100084 Beijing China
| | - Bo Li
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun China
| | - Jingjing Li
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun China
| | - Fan Wang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun China
| | - Chao Ma
- Department of Chemistry Tsinghua University 100084 Beijing China
| | - Fangfu Ye
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- Wenzhou Institute University of Chinese Academy of Sciences Wenzhou Zhejiang 325001 China
| | - Jing Sun
- East China Normal University China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun China
- University of Science and Technology of China 230026 Hefei China
- Department of Chemistry Tsinghua University 100084 Beijing China
| | - Kai Liu
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun China
- University of Science and Technology of China 230026 Hefei China
- Department of Chemistry Tsinghua University 100084 Beijing China
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42
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Yao F, Xu P, Jia H, Li X, Yu H, Li X. Thermogravimetric Analysis on a Resonant Microcantilever. Anal Chem 2022; 94:9380-9388. [PMID: 35731930 DOI: 10.1021/acs.analchem.2c01374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Thermogravimetric analysis (TGA) is a widely applied classic method for material characterization. However, the existing TGA method has reached its technical ceiling in regard to its sensitivity, efficiency, application scope, and extensibility. With temperature-programming and a picogram (10-12 g) mass resoluble measurement function, an integrated resonant microcantilever is proposed and developed into micro-electromechanical system-based TGA (MEMS TGA) technology to satisfy the significantly higher TGA requirements. With only a nanogram (10-9 g) level of a loaded sample, the microcantilever can conduct ultrasensitive mass-loss analysis along with ultrafast and controllable heating up to 1200 °C. Experiments have verified that MEMS TGA can improve heating efficiency by at least one order of magnitude compared to conventional TGA while maintaining measurement accuracy. The trace sample requirement also enables MEMS TGA to directly test explosive substances in an air atmosphere, while conventional TGA with a larger amount of sample has difficulty in avoiding explosion-induced equipment damage during heating. The silicon MEMS TGA microchip also exhibits functional combination (even integration) with other analytical techniques such as Raman spectroscopy to realize operando characterization.
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Affiliation(s)
- Fanglan Yao
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pengcheng Xu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao Jia
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Xinyu Li
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haitao Yu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Xinxin Li
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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43
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Zhao K, Liu Y, Ren Y, Li B, Li J, Wang F, Ma C, Ye F, Sun J, Zhang H, Liu K. Molecular Engineered Crown‐Ether–Protein with Strong Adhesion over a Wide Temperature Range from ‐196 to 200°C. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207425] [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)
- Kelu Zhao
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Laboratory of Rare Earth Resource Utilization CHINA
| | - Yawei Liu
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Laboratory of Rare Earth Resource Utilization CHINA
| | - Yubin Ren
- Tsinghua University Department of Chemistry Department of Chemistry CHINA
| | - Bo Li
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Laboratory of Rare Earth Resource Utilization CHINA
| | - Jingjing Li
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Laboratory of Rare Earth Resource Utilization CHINA
| | - Fan Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Laboratory of Rare Earth Resource Utilization 5625 Renmin St, Guilin Road, Chaoyang District 130022 Changchun CHINA
| | - Chao Ma
- Tsinghua University Department of Chemistry CHINA
| | - Fangfu Ye
- Chinese Academy of Sciences Institute of Physics Institute of Physics CHINA
| | - Jing Sun
- Ulm University: Universitat Ulm Institute of Organic Chemistry GERMANY
| | | | - Kai Liu
- Tsinghua University Department of Chemistry qinghua yuan 100084 Beijing CHINA
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44
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Lu S, Fu Z, Li F, Weng K, Zhou L, Zhang L, Yang Y, Qiu H, Liu D, Qing W, Ding H, Sheng X, Chen M, Tang X, Duan L, Liu W, Wu L, Yang Y, Zhang H, Li J. Beyond a Linker: The Role of Photochemistry of Crosslinkers in the Direct Optical Patterning of Colloidal Nanocrystals. Angew Chem Int Ed Engl 2022; 61:e202202633. [PMID: 35319804 DOI: 10.1002/anie.202202633] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Indexed: 12/25/2022]
Abstract
Surface chemistry mediated direct optical patterning represents an emerging strategy for incorporating colloidal nanocrystals (NCs) in integrated optoelectronic platforms including displays and image sensors. However, the role of photochemistry of crosslinkers and other photoactive species in patterning remains elusive. Here we show the design of nitrene- and carbene-based photocrosslinkers can strongly affect the patterning capabilities and photophysical properties of NCs, especially quantum dots (QDs). Their role beyond physical linkers stems from structure-dictated electronic configuration, energy alignment and associated reaction kinetics and thermodynamics. Patterned QD layers with designed carbene-based crosslinkers fully preserve their photoluminescent and electroluminescent properties. Patterned light emitting diodes (QLEDs) show a maximum external quantum efficiency of ≈12 % and lifetime over 4800 h, among the highest for reported patterned QLEDs. These results would guide the rational design of photoactive species in NC patterning and create new possibilities in the monolithic integration of NCs in high-performance device platforms.
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Affiliation(s)
- Shaoyong Lu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - Zhong Fu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - Fu Li
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - Kangkang Weng
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - Likuan Zhou
- TCL Research, No. 1001 Zhongshan Park Road, Shenzhen, Guangdong, 518067, China
| | - Lipeng Zhang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuchen Yang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hengwei Qiu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - Dan Liu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - Wenyue Qing
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
| | - He Ding
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China
| | - Xing Sheng
- Department of Electrical Engineering, Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing, 100084, China.,Center for Flexible Electronic Technology, Tsinghua University, Beijing, 100084, China
| | - Menglu Chen
- Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China
| | - Xin Tang
- Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China
| | - Lian Duan
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China.,Center for Flexible Electronic Technology, Tsinghua University, Beijing, 100084, China
| | - Wenyong Liu
- TCL Research, No. 1001 Zhongshan Park Road, Shenzhen, Guangdong, 518067, China
| | - Longjia Wu
- TCL Research, No. 1001 Zhongshan Park Road, Shenzhen, Guangdong, 518067, China
| | - Yixing Yang
- TCL Research, No. 1001 Zhongshan Park Road, Shenzhen, Guangdong, 518067, China
| | - Hao Zhang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China.,Center for Flexible Electronic Technology, Tsinghua University, Beijing, 100084, China
| | - Jinghong Li
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Center for BioAnalytical Chemistry, Tsinghua University, Beijing, 100084, China
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45
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Yang S, Yi S, Yun J, Li N, Jiang Y, Huang Z, Xu C, He C, Pan X. Carbene-Mediated Polymer Cross-Linking with Diazo Compounds by C–H Activation and Insertion. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shicheng Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Siyu Yi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jie Yun
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Ning Li
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Yuan Jiang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Zhujun Huang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Chaoran Xu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Congze He
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xiangcheng Pan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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46
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Lu S, Fu Z, Li F, Weng K, Zhou L, Zhang L, Yang Y, Qiu H, Liu D, Qing W, Ding H, Sheng X, Chen M, Tang X, Duan L, Liu W, Wu L, Yang Y, Zhang H, Li J. Beyond a Linker: The Role of Photochemistry of Crosslinkers in the Direct Optical Patterning of Colloidal Nanocrystals. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shaoyong Lu
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - Zhong Fu
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - Fu Li
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - Kangkang Weng
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - Likuan Zhou
- TCL Research No. 1001 Zhongshan Park Road Shenzhen Guangdong 518067 China
| | - Lipeng Zhang
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - Yuchen Yang
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - Hengwei Qiu
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - Dan Liu
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - Wenyue Qing
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
| | - He Ding
- Beijing Engineering Research Center of Mixed Reality and Advanced Display School of Optics and Photonics Beijing Institute of Technology Beijing 100081 China
| | - Xing Sheng
- Department of Electrical Engineering Beijing National Research Center for Information Science and Technology Tsinghua University Beijing 100084 China
- Center for Flexible Electronic Technology Tsinghua University Beijing 100084 China
| | - Menglu Chen
- Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology School of Optics and Photonics Beijing Institute of Technology Beijing 100081 China
| | - Xin Tang
- Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology School of Optics and Photonics Beijing Institute of Technology Beijing 100081 China
| | - Lian Duan
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
- Center for Flexible Electronic Technology Tsinghua University Beijing 100084 China
| | - Wenyong Liu
- TCL Research No. 1001 Zhongshan Park Road Shenzhen Guangdong 518067 China
| | - Longjia Wu
- TCL Research No. 1001 Zhongshan Park Road Shenzhen Guangdong 518067 China
| | - Yixing Yang
- TCL Research No. 1001 Zhongshan Park Road Shenzhen Guangdong 518067 China
| | - Hao Zhang
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
- Center for Flexible Electronic Technology Tsinghua University Beijing 100084 China
| | - Jinghong Li
- Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Center for BioAnalytical Chemistry Tsinghua University Beijing 100084 China
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47
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Silver-catalyzed site-selective C(sp 3)-H benzylation of ethers with N-triftosylhydrazones. Nat Commun 2022; 13:1674. [PMID: 35354822 PMCID: PMC8967862 DOI: 10.1038/s41467-022-29323-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 02/14/2022] [Indexed: 11/09/2022] Open
Abstract
The insertion of carbenes into the α-C-H bonds of ethers represents one of the most powerful approaches to access polysubstituted α-branched ethers. However, intermolecular carbene insertions remain challenging, since current approaches are generally limited to the use of toxic and potentially explosive α-diazocarbonyl compounds. We now report a silver-catalyzed α-C-H benzylation of ethers using bench-stable N-triftosylhydrazones as safe and convenient carbene precursors. This approach is well suited for both inter- and intramolecular insertions to deliver medicinally relevant homobenzylic ethers and 5-8-membered oxacycles in good yields. The synthetic utility of this strategy is demonstrated by its easy scalability, broad scope with valuable functional groups, high regioselectivity, and late-stage functionalization of complex oxygen-containing molecules. The relative reactivities of different types of silver carbenes and C-H bonds were also investigated by experments and DFT calculations.
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48
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He Y, Huang Z, Wu K, Ma J, Zhou YG, Yu Z. Recent advances in transition-metal-catalyzed carbene insertion to C-H bonds. Chem Soc Rev 2022; 51:2759-2852. [PMID: 35297455 DOI: 10.1039/d1cs00895a] [Citation(s) in RCA: 82] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
C-H functionalization has been emerging as a powerful method to establish carbon-carbon and carbon-heteroatom bonds. Many efforts have been devoted to transition-metal-catalyzed direct transformations of C-H bonds. Metal carbenes generated in situ from transition-metal compounds and diazo or its equivalents are usually applied as the transient reactive intermediates to furnish a catalytic cycle for new C-C and C-X bond formation. Using this strategy compounds from unactivated simple alkanes to complex molecules can be further functionalized or transformed to multi-functionalized compounds. In this area, transition-metal-catalyzed carbene insertion to C-H bonds has been paid continuous attention. Diverse catalyst design strategies, synthetic methods, and potential applications have been developed. This critical review will summarize the advance in transition-metal-catalyzed carbene insertion to C-H bonds dated up to July 2021, by the categories of C-H bonds from aliphatic C(sp3)-H, aryl (aromatic) C(sp2)-H, heteroaryl (heteroaromatic) C(sp2)-H bonds, alkenyl C(sp2)-H, and alkynyl C(sp)-H, as well as asymmetric carbene insertion to C-H bonds, and more coverage will be given to the recent work. Due to the rapid development of the C-H functionalization area, future directions in this topic are also discussed. This review will give the authors an overview of carbene insertion chemistry in C-H functionalization with focus on the catalytic systems and synthetic applications in C-C bond formation.
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Affiliation(s)
- Yuan He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zilong Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Kaikai Wu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China.
| | - Juan Ma
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yong-Gui Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China.
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China. .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, P. R. China.,Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P. R. China
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49
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Bootsma J, Browne WR, Flapper J, de Bruin B. Photoactive Fe Catalyst for Light-Triggered Alkyd Paint Curing. JACS AU 2022; 2:531-540. [PMID: 35253002 PMCID: PMC8889616 DOI: 10.1021/jacsau.1c00579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Indexed: 06/14/2023]
Abstract
Herein, we show that the photoactive complexes [(Cp)Fe(arene)]+ (Cp = cyclopentadienyl; arene = C6H6, C6H5Me) act as latent catalysts that allow for photochemical control over the onset of alkyd paint curing, without the need for antiskinning agents such as the volatile 2-butanone oxime normally used to prevent curing during paint storage. The highly soluble neutral complexes [(Cp)Fe(Ch)] and [(Cp)Fe(Ch')] (Ch = cyclohexadienyl, Ch' = methylcyclohexadienyl) readily convert to the photoactive complexes [(Cp)Fe(arene)]+ upon oxidation in alkyd, allowing the latter to be dosed in a wide range of concentrations. Infrared and Raman studies show similar spectral changes of the alkyd paint matrix as have been observed in alkyd curing mediated by well-known, industrially applied cobalt- and manganese-based catalyst Co(neodecanoate)2 and [(Me3TACN)2Mn2(μ-OOCR)3](OOCR). The [(Cp)Fe(Ch)]/[(Cp)Fe(arene)]+ system performs equally well as these cobalt- and manganese-based catalysts in terms of drying time and outperform the manganese catalyst by showing a hardness development (increase) similar to that of the cobalt-based catalyst. Based on electron paramagnetic resonance and light-activity studies, we propose that photolysis of [(Cp)Fe(arene)]+ generates short-lived active FeII species, explaining the desired latency. The [(Cp)Fe(Ch)]/[(Cp)Fe(arene)]+ alkyd curing systems presented herein are unique examples of intrinsically latent paint curing catalysts that (1) are based on an abundant and harmless transition metal (Fe), (2) do not require any antiskinning agents, and (3) show favorable performance in terms of drying times and hardness development.
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Affiliation(s)
- Johan Bootsma
- Homogeneous,
Supramolecular and Bio-Inspired Catalysis Group, Van ’t Hoff
Institute for Molecular Sciences, University
of Amsterdam, Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - Wesley R. Browne
- Molecular
Inorganic Chemistry group, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Jitte Flapper
- Akzo
Nobel Decorative Coatings B.V., Rijksstraatweg 31, 2171 AJ Sassenheim, The Netherlands
| | - Bas de Bruin
- Homogeneous,
Supramolecular and Bio-Inspired Catalysis Group, Van ’t Hoff
Institute for Molecular Sciences, University
of Amsterdam, Science
Park 904, 1098 XH Amsterdam, The Netherlands
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50
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Fazekas TJ, Alty JW, Neidhart EK, Miller AS, Leibfarth FA, Alexanian EJ. Diversification of aliphatic C-H bonds in small molecules and polyolefins through radical chain transfer. Science 2022; 375:545-550. [PMID: 35113718 DOI: 10.1126/science.abh4308] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The ability to selectively introduce diverse functionality onto hydrocarbons is of substantial value in the synthesis of both small molecules and polymers. Herein, we report an approach to aliphatic carbon-hydrogen bond diversification using radical chain transfer featuring an easily prepared O-alkenylhydroxamate reagent, which upon mild heating facilitates a range of challenging or previously undeveloped aliphatic carbon-hydrogen bond functionalizations of small molecules and polyolefins. This broad reaction platform enabled the functionalization of postconsumer polyolefins in infrastructure used to process plastic waste. Furthermore, the chemoselective placement of ionic functionality onto a branched polyolefin using carbon-hydrogen bond functionalization upcycled the material from a thermoplastic into a tough elastomer with the tensile properties of high-value polyolefin ionomers.
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Affiliation(s)
- Timothy J Fazekas
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jill W Alty
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
| | - Eliza K Neidhart
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
| | - Austin S Miller
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
| | - Frank A Leibfarth
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
| | - Erik J Alexanian
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
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