1
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Yu Z, Li Q, Liu Y, Tian S, Chen W, Han Y, Tang Z, Zhang J. Malleable, Ultrastrong Antibacterial Thermosets Enabled by Guanidine Urea Structure. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2402891. [PMID: 38868926 PMCID: PMC11321644 DOI: 10.1002/advs.202402891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/29/2024] [Indexed: 06/14/2024]
Abstract
Dynamic covalent polymers (DCPs) that strike a balance between high performance and rapid reconfiguration have been a challenging task. For this purpose, a solution is proposed in the form of a new dynamic covalent supramolecular motif-guanidine urea structure (GUAs). GUAs contain complex and diverse chemical structures as well as unique bonding characteristics, allowing guanidine urea supramolecular polymers to demonstrate advanced physical properties. Noncovalent interaction aggregates (NIAs) have been confirmed to form in GUA-DCPs through multistage H-bonding and π-π stacking, resulting in an extremely high Young's modulus of 14 GPa, suggesting remarkable mechanical strength. Additionally, guanamine urea linkages in GUAs, a new type of dynamic covalent bond, provide resins with excellent malleability and reprocessability. Guanamine urea metathesis is validated using small molecule model compounds, and the temperature dependent infrared and rheological behavior of GUA-DCPs following the dissociative exchange mechanism. Moreover, the inherent photodynamic antibacterial properties are extensively verified by antibacterial experiments. Even after undergoing three reprocessing cycles, the antibacterial rate of GUA-DCPs remains above 99% after 24 h, highlighting their long-lasting antibacterial effectiveness. GUA-DCPs with dynamic nature, tuneable composition, and unique combination of properties make them promising candidates for various technological advancements.
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Affiliation(s)
- Zhen Yu
- Center of Eco‐Material and Green ChemistryLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Qiong Li
- Department of ChemistryThe University of Hong KongHong Kong999077P. R. China
| | - Yanlin Liu
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201P. R. China
| | - Shu Tian
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201P. R. China
| | - Wanding Chen
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201P. R. China
| | - Yingying Han
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201P. R. China
| | - Zhaobin Tang
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201P. R. China
| | - Junping Zhang
- Center of Eco‐Material and Green ChemistryLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
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2
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Ren D, Zhang S, Dai J, Lan J, Qiu D, Zhang K, Bi H, Huang F. Sulfur-Functionalized Carbon Nanotubes with Inlaid Nanographene for 3D-Printing Micro-Supercapacitors and a Flexible Self-Powered Sensing System. ACS NANO 2024. [PMID: 39051159 DOI: 10.1021/acsnano.4c06879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Digital fabrication of miniaturized micro-supercapacitors (MSCs) holds immense promise for advancing customized, integrated microelectronic systems. As potential electrode materials, carbonaceous nanomaterials, such as carbon nanotubes (CNTs), stand out due to their excellent conductivity and mechanical robustness yet suffer from low ionic storage sites, which restrict further applications. Herein, we introduce a sulfur-assisted in situ activating strategy for obtaining sulfur-functionalized carbon nanotube frameworks integrated with inlaid graphene nanosheets (S-CNT/GNS). Specifically, sulfur functionality enriches the surface charge density with improved interfacial hydrophilicity, while the inlaid nanographene sheets provide abundant ionic adsorption sites. By direct 3D printing of the S-CNT/GNS ink, planar MSCs were fabricated with desirable functionality and outstanding electrochemical performance. Notably, the developed MSCs exhibit a high areal capacitance of 0.47 F cm-2, an exceptional energy density of 64.6 μWh cm-2, and a high-power density of 34.2 mW cm-2. Furthermore, an all-flexible self-powered sensing system with photovoltaic cells and a stretchable sensor was built upon the customized S-CNT/GNS MSCs, demonstrating a highly effective capability for real-time monitoring of human physiological signals and body movements. This work not only presents a promising approach for the development of high-performance MSCs but also lays the groundwork for the creation of advanced wearable/flexible microelectronics systems.
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Affiliation(s)
- Dayong Ren
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- Zhongke Institute of Strategic Emerging Materials, Yixing 214216, China
| | - Shaoning Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 200031, China
| | - Jiaxin Dai
- Zhongke Institute of Strategic Emerging Materials, Yixing 214216, China
| | - Jiancheng Lan
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- Zhongke Institute of Strategic Emerging Materials, Yixing 214216, China
| | - Donghai Qiu
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215011, China
| | - Kan Zhang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hui Bi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Fuqiang Huang
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China
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3
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Shen J, Li H, Li Y, Zhu Z, Luo K, Wu L. Visible-Light-Promoted Radical Cascade Sulfone Alkylation/Cyclization of 2-Isocyanoaryl Thioethers Enabled by Electron Donor-Acceptor Complex Formation. J Org Chem 2024; 89:10223-10233. [PMID: 38939958 DOI: 10.1021/acs.joc.4c01100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
A photo-induced cascade sulfone alkylation/cyclization of 2-isocyanoaryl thioethers is explored. This visible-light-triggered reaction not only occurs under extremely mild reaction conditions but also does not require the presence of a photosensitizer. The photocatalytic process is triggered by the photochemical activity of in situ-generated electron donor-acceptor complexes, arising from the association of 2-isocyanoaryl thioethers and α-iodosulfones. The radical pathway was confirmed by UV-vis spectroscopy, radical trapping, Job's plot, and on/off irradiation experiments.
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Affiliation(s)
- Jiamei Shen
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Hui Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yuan Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhihao Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Kai Luo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
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4
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Hu G, Xu HD, Fang J. Sulfur-based fluorescent probes for biological analysis: A review. Talanta 2024; 279:126515. [PMID: 39024854 DOI: 10.1016/j.talanta.2024.126515] [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: 06/29/2024] [Accepted: 07/03/2024] [Indexed: 07/20/2024]
Abstract
The widespread adoption of small-molecule fluorescence detection methodologies in scientific research and industrial contexts can be ascribed to their inherent merits, including elevated sensitivity, exceptional selectivity, real-time detection capabilities, and non-destructive characteristics. In recent years, there has been a growing focus on small-molecule fluorescent probes engineered with sulfur elements, aiming to detect a diverse array of biologically active species. This review presents a comprehensive survey of sulfur-based fluorescent probes published from 2017 to 2023. The diverse repertoire of recognition sites, including but not limited to N, N-dimethylthiocarbamyl, disulfides, thioether, sulfonyls and sulfoxides, thiourea, thioester, thioacetal and thioketal, sulfhydryl, phenothiazine, thioamide, and others, inherent in these sulfur-based probes markedly amplifies their capacity for detecting a broad spectrum of analytes, such as metal ions, reactive oxygen species, reactive sulfur species, reactive nitrogen species, proteins, and beyond. Owing to the individual disparities in the molecular structures of the probes, analogous recognition units may be employed to discern diverse substrates. Subsequent to this classification, the review provides a concise summary and introduction to the design and biological applications of these probe molecules. Lastly, drawing upon a synthesis of published works, the review engages in a discussion regarding the merits and drawbacks of these fluorescent probes, offering guidance for future endeavors.
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Affiliation(s)
- Guodong Hu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Hua-Dong Xu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Jianguo Fang
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu, 210094, China.
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5
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Su YL, Xiong W, Yue L, Paul MK, Otte KS, Bacsa J, Qi HJ, Gutekunst WR. Michael Addition-Elimination Ring-Opening Polymerization. J Am Chem Soc 2024; 146:18074-18082. [PMID: 38906845 PMCID: PMC11228986 DOI: 10.1021/jacs.4c05054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/23/2024]
Abstract
A cyclic thioenone system capable of controlled ring-opening polymerization (ROP) is presented that leverages a reversible Michael addition-elimination (MAE) mechanism. The cyclic thioenone monomers are easy to access and modify and for the first time incorporate the dynamic reversibility of MAE with chain-growth polymerization. This strategy features mild polymerization conditions, tunable functionalities, controlled molecular weights (Mn), and narrow dispersities. The obtained polythioenones exhibit excellent optical transparency and good mechanical properties and can be depolymerized to recover the original monomers. Density functional theory (DFT) calculations of model reactions offer insights into the role of monomer conformation in the polymerization process, as well as explaining divergent reactivity observed in seven-membered thiepane (TP) and eight-membered thiocane (TC) ring systems. Collectively, these findings demonstrate the feasibility of MAE mechanisms in ring-opening polymerization and provide important guidelines toward future monomer designs.
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Affiliation(s)
- Yong-Liang Su
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Wei Xiong
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Liang Yue
- School
of Mechanical Engineering, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Mckinley K. Paul
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Kaitlyn S. Otte
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - John Bacsa
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - H. Jerry Qi
- School
of Mechanical Engineering, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Will R. Gutekunst
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
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6
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Yang DS, Chen XL, Wu CY, Tang BC, Xiao YC, Wu YD, Wu AX. Synthesis of β,β-Dithioketones by Merging C-C and C-S Bond Cleavage in [1 + 1 + 1 + 1 + 1 + 1] Annulation. Org Lett 2024; 26:4340-4345. [PMID: 38743916 DOI: 10.1021/acs.orglett.4c01364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
An unconventional [1 + 1 + 1 + 1 + 1 + 1] annulation process was developed for the construction of β,β-dithioketones by merging C-C and C-S bond cleavage. In this reaction, rongalite concurrently served as triple C1 units, dual sulfur(II) synthons, and a reductant for the first time. Mechanism investigation indicated that the reaction involved the self-mediated valence state change of rongalite. By performing this step-economical method, the challenging construction of C5-substituted 1,3-dithiane can be achieved under mild and simple conditions.
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Affiliation(s)
- Dong-Sheng Yang
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Xiang-Long Chen
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Chun-Yan Wu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Bo-Cheng Tang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Yong-Cheng Xiao
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Yan-Dong Wu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - An-Xin Wu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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7
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Li Z, He Z, Huang Q, Kan M, Li H. Tuning Regioselectivity in the [3 + 2] Cycloaddition of Alkynyl Sulfonium Salts with Binucleophilic N-Aryl Amidines. Org Lett 2024. [PMID: 38788170 DOI: 10.1021/acs.orglett.4c01534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
A tunable reaction manifold of alkynyl sulfonium salts with binucleophilic N-aryl amidines in the absence of any transition metal catalyst is first reported. This methodology involves sequential addition/cyclization that is perfectly tuned by stepwise addition of K2CO3, affording a plethora of valuable 1,2,4- and 1,2,5-trisubstituted imidazoles in good yields with high regioselectivity. Importantly, trapping and isolation of the reactive intermediate unveiled the reaction mechanism of β-attack on the triple bond in this [3 + 2] cycloaddition reaction.
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Affiliation(s)
- Zhi Li
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Zhengjun He
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Qiang Huang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Mei Kan
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Hongji Li
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
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8
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Chetot T, Marocco Stuardi F, Forot A, Ducreux M, Baudouin A, Chefdeville E, Perret F, Vial L, Leclaire J. Switching between Nonisoenergetic Dynamic Covalent Reactions Using Host-Guest Chemistry. J Am Chem Soc 2024; 146:13580-13587. [PMID: 38687470 DOI: 10.1021/jacs.4c03400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
CO2 reacts with simple amines in the presence of water to generate dynamic combinatorial libraries of majority (i.e., ammonium carbamates) and minority (i.e., ammonium carbonates) nonisoenergetic covalent adducts. Over the past two decades, our laboratory has reported on a new class of cavitands, namely, dyn[n]arenes, from which a polyanionic macrocycle is a highly efficient receptor for linear polyammoniums that forms [2]pseudorotaxanes in water at neutral pH. Herein, we demonstrate that the formation of [2]pseudorotaxanes shifts the equilibrium of CO2 capture by polyamines in water toward the quasi-exclusive formation of carbonate adducts, providing the first example of a switch between two competitive and reversible covalent processes triggered by host-guest interactions. In addition, this supramolecular approach to CO2 capture exhibits enhanced capture efficiency by increasing the state of protonation of complexed vs uncomplexed polyamines. Altogether, we report here that a templating approach can divert the outcome of two reversible covalent chemistries involving nucleophilic additions and acid-base reactions, challenging therefore the common knowledge that noncovalent and covalent bonds operate in separate energy frames.
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Affiliation(s)
- Titouan Chetot
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | | | - Adrien Forot
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | - Maxime Ducreux
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | - Anne Baudouin
- Université Claude Bernard Lyon 1, CCRMN, F-69622 Villeurbanne, France
| | | | - Florent Perret
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | - Laurent Vial
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | - Julien Leclaire
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
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9
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Yu L, Li D, Ma C, Kauffmann B, Liao S, Gan Q. Redox-Regulated and Guest-Driven Transformations of Aromatic Oligoamide Foldamers in Advanced Structures. J Am Chem Soc 2024; 146:12907-12912. [PMID: 38691420 DOI: 10.1021/jacs.4c03275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
In this study, we demonstrate that an aromatic oligoamide sequence assembles into a trimeric helix-turn-helix architecture with a disulfide linkage, and upon cleavage of this linkage, it reconstructs into an antiparallel double helix. The antiparallel double helix is accessible to encapsulate a diacid guest within its cavity, forming a 2:1 host-guest complex. In contrast, hydrogen-bonding interactions between the trimeric-assembled structure and guests induce a conformational shift in the trimeric helix, resulting in a cross-shaped double-helix complex at a 2:2 host-guest ratio. Interconversions between the trimeric helix and the antiparallel double helix, along with their respective host-guest complexes, can be initiated through thiol/disulfide redox-mediated regulation.
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Affiliation(s)
- Lu Yu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074, Wuhan, China
| | - Dongyao Li
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, 777 Xingye Avenue East, Panyu District, 511442, Guangzhou, China
| | - Chunmiao Ma
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074, Wuhan, China
| | - Brice Kauffmann
- Université de Bordeaux, CNRS, INSERM, Institut Européen de Chimie Biologie (UMS3033/US001), 2 Rue Escarpit, 33600, Pessac, France
| | - Sibei Liao
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074, Wuhan, China
| | - Quan Gan
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074, Wuhan, China
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10
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Lu H, Ye H, You L. Photoswitchable Cascades for Allosteric and Bidirectional Control over Covalent Bonds and Assemblies. J Am Chem Soc 2024. [PMID: 38620077 DOI: 10.1021/jacs.4c01240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Studies of complex systems and emerging properties to mimic biosystems are at the forefront of chemical research. Dynamic multistep cascades, especially those exhibiting allosteric regulation, are challenging. Herein, we demonstrate a versatile platform of photoswitchable covalent cascades toward remote and bidirectional control of reversible covalent bonds and ensuing assemblies. The relay of a photochromic switch, keto-enol equilibrium, and ring-chain equilibrium allows light-mediated reversible allosteric structural changes. The accompanying distinct reactivity further enables photoswitchable dynamic covalent bonding and release of substrates bidirectionally through alternating two wavelengths of light, essentially realizing light-mediated signaling cycles. The downfall of energy by covalent bond formation/scission upon photochemical reactions offers the driving force for the controlled direction of the cascade. To show the molecular diversity, photoswitchable on-demand assembly/disassembly of covalent polymers, including structurally reconfigurable polymers, was realized. This work achieves photoswitchable allosteric regulation of covalent architectures within dynamic multistep cascades, which has rarely been reported before. The results resemble allosteric control within biological signaling networks and should set the stage for many endeavors, such as dynamic assemblies, molecular motors, responsive polymers, and intelligent materials.
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Affiliation(s)
- Hanwei Lu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hebo Ye
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Lei You
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
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11
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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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12
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Wang Y, Du J, Huang H. Reversible Thiyl Radical Addition-Fragmentation Chain Transfer Polymerization. Angew Chem Int Ed Engl 2024; 63:e202318898. [PMID: 38284482 DOI: 10.1002/anie.202318898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 01/30/2024]
Abstract
Developing reversible-deactivation radical polymerization (RDRP) methods that could directly control the thiyl radical propagation is highly desirable yet remains challenging in modern polymer chemistry. Here, we reported the first reversible thiyl radical addition-fragmentation chain transfer (SRAFT) polymerization strategy, which utilizes allyl sulfides as chain transfer agents for reversibly deactivating the propagating thiyl radicals, thus allowing us to directly control a challenging thiyl radical chain polymerization to afford polymers with well-defined architectures. A linear dependence of molecular weight on conversion, high chain-end fidelity, and efficient chain extension proved good controllability of the polymerization. In addition, density functional theory calculations provided insight into the reversible deactivation ability of allyl sulfides. The SRAFT strategy developed in this work represents a promising platform for discovering new controlled polymerizations based on thiyl radical chemistry.
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Affiliation(s)
- Yongjin Wang
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Jiaman Du
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Hanchu Huang
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, 510006, China
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13
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Janssen ML, Liu T, Özel M, Bril M, Prasad Thelu HV, E Kieltyka R. Dynamic Exchange in 3D Cell Culture Hydrogels Based on Crosslinking of Cyclic Thiosulfinates. Angew Chem Int Ed Engl 2024; 63:e202314738. [PMID: 38055926 DOI: 10.1002/anie.202314738] [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: 10/01/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 12/08/2023]
Abstract
Dynamic polymer materials are highly valued substrates for 3D cell culture due to their viscoelasticity, a time-dependent mechanical property that can be tuned to resemble the energy dissipation of native tissues. Herein, we report the coupling of a cyclic thiosulfinate, mono-S-oxo-4-methyl asparagusic acid, to a 4-arm PEG-OH to prepare a disulfide-based dynamic covalent hydrogel with the addition of 4-arm PEG-thiol. Ring opening of the cyclic thiosulfinate by nucleophilic substitution results in the rapid formation of a network showing a viscoelastic fluid-like behaviour and relaxation rates modulated by thiol content through thiol-disulfide exchange, whereas its viscoelastic behaviour upon application as a small molecule linear crosslinker is solid-like. Further introduction of 4-arm PEG-vinylsulfone in the network yields a hydrogel with weeks-long cell culture stability, permitting 3D culture of cell types that lack robust proliferation, such as human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs). These cells display native behaviours such as cell elongation and spontaneous beating as a function of the hydrogel's mechanical properties. We demonstrate that the mode of dynamic cyclic thiosulfinate crosslinker presentation within the network can result in different stress relaxation profiles, opening the door to model tissues with disparate mechanics in 3D cell culture.
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Affiliation(s)
- Merel L Janssen
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Tingxian Liu
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Mertcan Özel
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Maaike Bril
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Hari Veera Prasad Thelu
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Roxanne E Kieltyka
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
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14
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Dolinski ND, Tao R, Boynton NR, Kotula AP, Lindberg CA, Petersen KJ, Forster AM, Rowan SJ. Connecting Molecular Exchange Dynamics to Stress Relaxation in Phase-Separated Dynamic Covalent Networks. ACS Macro Lett 2024:174-180. [PMID: 38251912 DOI: 10.1021/acsmacrolett.3c00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
A suite of phase separated dynamic covalent networks based on highly tunable dynamic benzalcyanoacetate (BCA) thia-Michael acceptors are investigated. In situ kinetic studies on small molecule model systems are used in conjunction with macroscopic characterization of phase stability and stress relaxation to understand how the molecular dynamics relate to relaxation modes. Electronic modification of the BCA unit strongly impacts the exchange dynamics (particularly the rate of dissociation) and the overall equilibrium constant (Keq) of the system, with electron-withdrawing groups leading to decreased dissociation rate and increased Keq. Critically, below a chemistry-defined temperature cutoff (related to the stability of the hard phase domains), the stress relaxation behavior of these phase separated materials is dominated by the molecular exchange dynamics, allowing for networks with a tailored thermomechanical response.
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Affiliation(s)
- Neil D Dolinski
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Ran Tao
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Nicholas R Boynton
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Anthony P Kotula
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Charlie A Lindberg
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Kyle J Petersen
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Aaron M Forster
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Stuart J Rowan
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
- Chemical Science and Engineering Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60434, United States
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15
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Li L, Liu T, Zuo S, Li Y, Zhao E, Lu Q, Wang D, Sun Y, He Z, Sun B, Sun J. Satellite-Type Sulfur Atom Distribution in Trithiocarbonate Bond-Bridged Dimeric Prodrug Nanoassemblies: Achieving Both Stability and Activatability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310633. [PMID: 37983894 DOI: 10.1002/adma.202310633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/06/2023] [Indexed: 11/22/2023]
Abstract
Homodimeric prodrug nanoassemblies (HDPNs) hold promise for improving the delivery efficiency of chemo-drugs. However, the key challenge lies in designing rational chemical linkers that can simultaneously ensure the chemical stability, self-assembly stability, and site-specific activation of prodrugs. The "in series" increase in sulfur atoms, such as trisulfide bond, can improve the assembly stability of HDPNs to a certain extent, but limits the chemical stability of prodrugs. Herein, trithiocarbonate bond (─SC(S)S─), with a stable "satellite-type" distribution of sulfur atoms, is developed via the insertion of a central carbon atom in trisulfide bonds. ─SC(S)S─ bond effectively addresses the existing predicament of HDPNs by improving the chemical and self-assembly stability of homodimeric prodrugs while maintaining the on-demand bioactivation. Furthermore, ─SC(S)S─ bond inhibits antioxidant defense system, leading to up-regulation of the cellular ROS and apoptosis of tumor cells. These improvements of ─SC(S)S─ bond endow the HDPNs with in vivo longevity and tumor specificity, ultimately enhancing the therapeutic outcomes. ─SC(S)S─ bond is, therefore, promising for overcoming the bottleneck of HDPNs for efficient oncological therapy.
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Affiliation(s)
- Lingxiao Li
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Tian Liu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Shiyi Zuo
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yaqiao Li
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Erwei Zhao
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Qi Lu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Danping Wang
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yixin Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Zhonggui He
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Bingjun Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jin Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
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16
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Wang M, Jin Y, Zhang W, Zhao Y. Single-crystal polymers (SCPs): from 1D to 3D architectures. Chem Soc Rev 2023; 52:8165-8193. [PMID: 37929665 DOI: 10.1039/d3cs00553d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Single-crystal polymers (SCPs) with unambiguous chemical structures at atomic-level resolutions have attracted great attention. Obtaining precise structural information of these materials is critical as it enables a deeper understanding of the potential driving forces for specific packing and long-range order, secondary interactions, and kinetic and thermodynamic factors. Such information can ultimately lead to success in controlling the synthesis or engineering of their crystal structures for targeted applications, which could have far-reaching impact. Successful synthesis of SCPs with atomic level control of the structures, especially for those with 2D and 3D architectures, is rare. In this review, we summarize the recent progress in the synthesis of SCPs, including 1D, 2D, and 3D architectures. Solution synthesis, topochemical synthesis, and extreme condition synthesis are summarized and compared. Around 70 examples of SCPs with unambiguous structure information are presented, and their synthesis methods and structural analysis are discussed. This review offers critical insights into the structure-property relationships, providing guidance for the future rational design and bottom-up synthesis of a variety of highly ordered polymers with unprecedented functions and properties.
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Affiliation(s)
- Mingsen Wang
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266000, China.
| | - Yinghua Jin
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA.
| | - Wei Zhang
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA.
| | - Yingjie Zhao
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266000, China.
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17
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Zhu J, Sun J, Yan Y, Dong Z, Huang Y. Dithiolation of Alkenyl Sulfonium Salts with Arylthiols to Access 1,2-Dithioalkanes. J Org Chem 2023; 88:15767-15771. [PMID: 37922383 DOI: 10.1021/acs.joc.3c01806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
A dithiolation of alkenyl sulfonium salts with arylthiols is described, affording a series of 1,2-dithioalkanes in high yields. This protocol features mild and catalyst-free conditions and involves the formation of two C-S bonds sequentially via the regioselective addition of an arylthiol to the unsaturated C═C bonds, followed by the attack of another arylthiol to form 1,2-dithioalkanes exclusively.
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Affiliation(s)
- Jie Zhu
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Jinghui Sun
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Yifei Yan
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Zhuyong Dong
- Hangzhou Create Environment Energy and Technology Co. Ltd., Hangzhou, Zhejiang 311121, China
| | - Yinhua Huang
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
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18
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Bouffard J, Coelho F, Sakai N, Matile S. Dynamic Phosphorus: Thiolate Exchange Cascades with Higher Phosphorothioates. Angew Chem Int Ed Engl 2023:e202313931. [PMID: 37847524 DOI: 10.1002/anie.202313931] [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: 09/18/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/18/2023]
Abstract
In this study, we introduce phosphorus, a pnictogen, as an exchange center for dynamic covalent chemistry. Cascade exchange of neutral phosphorotri- and -tetrathioates with thiolates is demonstrated in organic solvents, aqueous micellar systems, and in living cells. Exchange rates increase with the pH value, electrophilicity of the exchange center, and nucleophilicity of the exchangers. Molecular walking of the dynamic phosphorus center along Hammett gradients is simulated by the sequential addition of thiolate exchangers. Compared to phosphorotrithioates, tetrathioates are better electrophiles with higher exchange rates. Dynamic phosphorotri- and -tetrathioates are non-toxic to HeLa Kyoto cells and participate in the dynamic networks that account for thiol-mediated uptake into living cells.
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Affiliation(s)
- Jules Bouffard
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Filipe Coelho
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Naomi Sakai
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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19
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Hess SS, Coppola F, Dang VT, Tran PN, Mickel PJ, Oktawiec J, Ren Z, Král P, Nguyen AI. Noncovalent Peptide Assembly Enables Crystalline, Permutable, and Reactive Thiol Frameworks. J Am Chem Soc 2023; 145:19588-19600. [PMID: 37639365 DOI: 10.1021/jacs.3c03645] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Though thiols are exceptionally versatile, their high reactivity has also hindered the synthesis and characterization of well-defined thiol-containing porous materials. Leveraging the mild conditions of the noncovalent peptide assembly, we readily synthesized and characterized a number of frameworks with thiols displayed at many unique positions and in several permutations. Importantly, nearly all assemblies were structurally determined using single-crystal X-ray diffraction to reveal their rich sequence-structure landscape and the cooperative noncovalent interactions underlying their assembly. These observations and supporting molecular dynamics calculations enabled rational engineering by the positive and negative design of noncovalent interactions. Furthermore, the thiol-containing frameworks undergo diverse single-crystal-to-single-crystal reactions, including toxic metal ion coordination (e.g., Cd2+, Pb2+, and Hg2+), selective uptake of Hg2+ ions, and redox transformations. Notably, we find a framework that supports thiol-nitrosothiol interconversion, which is applicable for biocompatible nitric oxide delivery. The modularity, ease of synthesis, functionality, and well-defined nature of these peptide-based thiol frameworks are expected to accelerate the design of complex materials with reactive active sites.
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Affiliation(s)
- Selina S Hess
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Francesco Coppola
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Viet Thuc Dang
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Phuong Nguyen Tran
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Philip J Mickel
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Julia Oktawiec
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Zhong Ren
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Petr Král
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Andy I Nguyen
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
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20
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Jin Y, Hu C, Wang J, Ding Y, Shi J, Wang Z, Xu S, Yuan L. Thiol-Aldehyde Polycondensation for Bio-based Adaptable and Degradable Phenolic Polymers. Angew Chem Int Ed Engl 2023; 62:e202305677. [PMID: 37204428 DOI: 10.1002/anie.202305677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 05/20/2023]
Abstract
Designing sustainable materials with tunable mechanical properties, intrinsic degradability, and recyclability from renewable biomass through a mild process has become vital in polymer science. Traditional phenolic resins are generally considered to be not degradable or recyclable. Here we report the design and synthesis of linear and network structured phenolic polymers using facile polycondensation between natural aldehyde-bearing phenolic compounds and polymercaptans. Linear phenolic products are amorphous with Tg between -9 °C and 12 °C. Cross-linked networks from vanillin and its di-aldehyde derivative exhibited excellent mechanical strength between 6-64 MPa. The connecting dithioacetals are associatively adaptable strong bonds and susceptible to degradation in oxidative conditions to regenerate vanillin. These results highlight the potential of biobased sustainable phenolic polymers with recyclability and selective degradation, as a complement to the traditional phenol-formaldehyde resins.
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Affiliation(s)
- Yu Jin
- Anhui Agricultural University, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Hefei, 230036, China
| | - Chengcheng Hu
- Anhui Agricultural University, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Hefei, 230036, China
| | - Jie Wang
- Anhui Agricultural University, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Hefei, 230036, China
| | - Yongliang Ding
- Anhui Agricultural University, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Hefei, 230036, China
| | - Junjie Shi
- Anhui Agricultural University, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Hefei, 230036, China
| | - Zhongkai Wang
- Anhui Agricultural University, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Hefei, 230036, China
| | - Shichao Xu
- Chinese Academy of Forestry, Institute of Chemical Industry of Forest Products, Nanjing, 210042, China
| | - Liang Yuan
- Anhui Agricultural University, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Hefei, 230036, China
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21
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Zheng S, Xue H, Yao J, Chen Y, Brook MA, Noman ME, Cao Z. Exploring Lipoic Acid-Mediated Dynamic Bottlebrush Elastomers as a New Platform for the Design of High-Performance Thermally Conductive Materials. ACS APPLIED MATERIALS & INTERFACES 2023; 15:41043-41054. [PMID: 37590910 DOI: 10.1021/acsami.3c09826] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
The development of high-performance thermally conductive interface materials is the key to unlocking the serious bottleneck of modern microelectronic technology through enhanced heat dispersion. Existing methods that utilize silicone composites rely either on loading large doses of randomly distributed thermal conductive fillers or on filling prealigned thermal conductive scaffolds with liquid silicone precursors. Both approaches suffer from several limitations in terms of physical traits and processability. We describe an alternative approach in which malleable silicone matrices, based on the dynamic cyclic disulfide nature cross-linker (α-lipoic acid), are readily prepared using ring-opening polymerization. The mechanical properties of the resultant dynamic silicone matrix are readily tunable. Stress-dependent depolymerization of the disulfide network demonstrates the ability to reprocess the silicone elastomer matrix, which allows for the fabrication of highly efficient thermal conductive composites with a 3D interconnecting, thermally conductive network (3D-graphite/MxBy composites) via in situ methods. Applications of the composites as thermal dispersion interface materials are demonstrated by LEDs and CPUs, suggesting great potential in advanced electronics.
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Affiliation(s)
- Sijia Zheng
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Haiyan Xue
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jun Yao
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yang Chen
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street W, Hamilton, ON, Canada L8S 4M1
| | - Michael A Brook
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street W, Hamilton, ON, Canada L8S 4M1
| | - Muhammad Ebad Noman
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street W, Hamilton, ON, Canada L8S 4M1
| | - Zhihai Cao
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
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22
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Zhu J, Ye Y, Yan Y, Sun J, Huang Y. Highly Regioselective Dichalcogenation of Alkenyl Sulfonium Salts to Access 1,1-Dichalcogenalkenes. Org Lett 2023. [PMID: 37418314 DOI: 10.1021/acs.orglett.3c01886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
An unprecedented geminal olefinic dichalcogenation of alkenyl sulfonium salts with dichalcogenides ArYYAr (Y = S, Se, Te) is reported, providing various trisubstituted 1,1-dichalcogenalkenes [Ar1CH = C(YAr2)2] in a highly selective manner under mild and catalyst-free conditions. The key process involves the formation of two geminal olefinic C-Y bonds via sequential C-Y cross-coupling and C-H chalcogenation. A mechanistic rationale is further supported by control experiments and density functional theory calculations.
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Affiliation(s)
- Jie Zhu
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Yun Ye
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Yifei Yan
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Jinghui Sun
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Yinhua Huang
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
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23
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Breton GW, Martin KL, Bowron JA, Bacsa J. Evaluating the Effectiveness of Tethered Bis(urazolyl) Diradicals as Molecular Building Blocks for Dynamic Covalent Chemistry. J Org Chem 2023. [PMID: 37364258 DOI: 10.1021/acs.joc.3c00732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Dynamic covalent chemistry (DCvC) is a powerful means by which to rapidly prepare complex structures from simple molecular building blocks. Effective DCvC behavior is contingent upon the reversibility of covalent bond formation. Stabilized radical species, therefore, have been effectively used for these applications. In earlier work we demonstrated that properly substituted 1-arylurazolyl radicals showed promise as oxygen-insensitive heterocyclic N-centered radicals with a propensity for reversible bond formation. In this work we have synthesized several tethered bis(urazolyl) diradicals, varying by the type and length of connectivity between the urazole rings, and tested them for DCvC behavior. We have found that when the two aryl rings to which the urazolyl radical sites are attached are tethered by a chain of five or more carbons, equilibrium mixtures of monomeric and dimeric species are formed by N-N bond formation between two radical sites. DCvC behavior is observed that is sensitive to changes in temperature, concentration, and (to a lesser extent) solvent. In general, the dimer species is favored at lower temperatures and higher concentrations.
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Affiliation(s)
- Gary W Breton
- Department of Chemistry, Berry College, Mount Berry, Georgia 30149 United States
| | - Kenneth L Martin
- Department of Chemistry, Berry College, Mount Berry, Georgia 30149 United States
| | | | - John Bacsa
- Department of Chemistry, Emory University, Atlanta, Georgia 30322 United States
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24
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Su YL, Yue L, Tran H, Xu M, Engler A, Ramprasad R, Qi HJ, Gutekunst WR. Chemically Recyclable Polymer System Based on Nucleophilic Aromatic Ring-Opening Polymerization. J Am Chem Soc 2023. [PMID: 37307298 DOI: 10.1021/jacs.3c03455] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The development of chemically recyclable polymers with desirable properties is a long-standing but challenging goal in polymer science. Central to this challenge is the need for reversible chemical reactions that can equilibrate at rapid rates and provide efficient polymerization and depolymerization cycles. Based on the dynamic chemistry of nucleophilic aromatic substitution (SNAr), we report a chemically recyclable polythioether system derived from readily accessible benzothiocane (BT) monomers. This system represents the first example of a well-defined monomer platform capable of chain-growth ring-opening polymerization through an SNAr manifold. The polymerizations reach completion in minutes, and the pendant functionalities are easily customized to tune material properties or render the polymers amenable to further functionalization. The resulting polythioether materials exhibit comparable performance to commercial thermoplastics and can be depolymerized to the original monomers in high yields.
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Affiliation(s)
- Yong-Liang Su
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Liang Yue
- School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Huan Tran
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Mizhi Xu
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Anthony Engler
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Rampi Ramprasad
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - H Jerry Qi
- School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Will R Gutekunst
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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25
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Upadhyay C, Ojha U. Stress-Induced Shape-Shifting Materials Possessing Autonomous Self-Healing and Scratch-Resistant Ability. Chem Asian J 2023; 18:e202201082. [PMID: 36637865 DOI: 10.1002/asia.202201082] [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: 10/27/2022] [Revised: 12/28/2022] [Accepted: 01/11/2023] [Indexed: 01/14/2023]
Abstract
Covalent adaptable networks (CANs) capable of both shape-shifting and self-healing ability offer a viable alternative to 4D printing technology to gain access to various complex shapes in a simplified manner. However, most of the reported CANs exhibit shape-shifting ability in the presence of temperature, light or chemical stimuli, which restricts their further utilization as realization of such a controlled environment is not feasible under complex scenarios. Herewith, we report a set of CANs based on a room-temperature exchangeable thia-Michael adduct, which undergoes rearrangement in network topology on application of external stress. These CANs with tensile strength (≤6 MPa) and modulus (≤71.4 MPa) adopt to any programmed shape under application of nominal stress. The CANs also exhibit stress-induced recyclability, self-welding and self-healing ability under ambient conditions. The transparency and ambient condition self-healing ability render these CANs to be utilized as scratch-resistant coatings on display items.
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Affiliation(s)
- Chandan Upadhyay
- Department of Chemistry, Rajiv Gandhi Institute of Petroleum Technology, Jais, Bahadurpur, UP, 229304, India
| | - Umaprasana Ojha
- Department of Chemistry, Rajiv Gandhi Institute of Petroleum Technology, Jais, Bahadurpur, UP, 229304, India
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26
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Chao Y, Krishna A, Subramaniam M, Liang D, Pujari SP, Sue AC, Li G, Miloserdov FM, Zuilhof H. Sulfur–Phenolate Exchange: SuFEx‐Derived Dynamic Covalent Reactions and Degradation of SuFEx Polymers. Angew Chem Int Ed Engl 2022; 61:e202207456. [PMID: 35819248 PMCID: PMC9540147 DOI: 10.1002/anie.202207456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 11/15/2022]
Abstract
The products of the SuFEx reaction between sulfonimidoyl fluorides and phenols, sulfonimidates, are shown to display dynamic covalent chemistry with other phenols. This reaction was shown to be enantiospecific, finished in minutes at room temperature in high yields, and useful for both asymmetric synthesis and sustainable polymer production. Its wide scope further extends the usefulness of SuFEx and related click chemistries.
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Affiliation(s)
- Yang Chao
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
| | - Akash Krishna
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
| | - Muthusamy Subramaniam
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Dong‐Dong Liang
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Department of Chemistry Capital Normal University Beijing 100048 China
| | - Sidharam P. Pujari
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | | | - Guanna Li
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Biobased Chemistry and Technology Wageningen University Bornse Weilanden 9 6708WG Wageningen The Netherlands
| | - Fedor M. Miloserdov
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Han Zuilhof
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Department of Chemical and Materials Engineering Faculty of Engineering King Abdulaziz University 21589 Jeddah Saudi Arabia
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27
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Chao Y, Krishna A, Subramaniam M, Liang D, Pujari SP, Sue AC, Li G, Miloserdov FM, Zuilhof H. Sulfur–Phenolate Exchange: SuFEx‐Derived Dynamic Covalent Reactions and Degradation of SuFEx Polymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207456] [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)
- Yang Chao
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
| | - Akash Krishna
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
| | - Muthusamy Subramaniam
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Dong‐Dong Liang
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Department of Chemistry Capital Normal University Beijing 100048 China
| | - Sidharam P. Pujari
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | | | - Guanna Li
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Biobased Chemistry and Technology Wageningen University Bornse Weilanden 9 6708WG Wageningen The Netherlands
| | - Fedor M. Miloserdov
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Han Zuilhof
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Department of Chemical and Materials Engineering Faculty of Engineering King Abdulaziz University 21589 Jeddah Saudi Arabia
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