1
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Chakma P, Zeitler SM, Baum F, Yu J, Shindy W, Pozzo LD, Golder MR. Mechanoredox Catalysis Enables a Sustainable and Versatile Reversible Addition-Fragmentation Chain Transfer Polymerization Process. Angew Chem Int Ed Engl 2023; 62:e202215733. [PMID: 36395245 DOI: 10.1002/anie.202215733] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Indexed: 11/19/2022]
Abstract
The sustainable synthesis of macromolecules with control over sequence and molar mass remains a challenge in polymer chemistry. By coupling mechanochemistry and electron-transfer processes (i.e., mechanoredox catalysis), an energy-conscious controlled radical polymerization methodology is realized. This work explores an efficient mechanoredox reversible addition-fragmentation chain transfer (RAFT) polymerization process using mechanical stimuli by implementing piezoelectric barium titanate and a diaryliodonium initiator with minimal solvent usage. This mechanoredox RAFT process demonstrates exquisite control over poly(meth)acrylate dispersity and chain length while also showcasing an alternative to the solution-state synthesis of semifluorinated polymers that typically utilize exotic solvents and/or reagents. This chemistry will find utility in the sustainable development of materials across the energy, biomedical, and engineering communities.
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Affiliation(s)
- Progyateg Chakma
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
| | - Sarah M Zeitler
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
| | - Fábio Baum
- Department of Chemical Engineering and Department of Material Science & Engineering, University of Washington, 105 Benson Hall, Seattle, WA 98195, USA
| | - Jiatong Yu
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
| | - Waseem Shindy
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
| | - Lilo D Pozzo
- Department of Chemical Engineering and Department of Material Science & Engineering, University of Washington, 105 Benson Hall, Seattle, WA 98195, USA
| | - Matthew R Golder
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
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2
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Purtsas A, Rosenkranz M, Dmitrieva E, Kataeva O, Knölker H. Iron-Catalyzed Oxidative C-O and C-N Coupling Reactions Using Air as Sole Oxidant. Chemistry 2022; 28:e202104292. [PMID: 35179270 PMCID: PMC9314016 DOI: 10.1002/chem.202104292] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Indexed: 01/31/2023]
Abstract
We describe the oxygenation of tertiary arylamines, and the amination of tertiary arylamines and phenols. The key step of these coupling reactions is an iron-catalyzed oxidative C-O or C-N bond formation which generally provides the corresponding products in high yields and with excellent regioselectivity. The transformations are accomplished using hexadecafluorophthalocyanine-iron(II) (FePcF16 ) as catalyst in the presence of an acid or a base additive and require only ambient air as sole oxidant.
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Affiliation(s)
- Alexander Purtsas
- Fakultät ChemieTechnische Universität DresdenBergstraße 6601069DresdenGermany
| | - Marco Rosenkranz
- Center of SpectroelectrochemistryLeibniz Institute for Solid State and Materials Research (IFW) DresdenHelmholtzstraße 2001069DresdenGermany
| | - Evgenia Dmitrieva
- Center of SpectroelectrochemistryLeibniz Institute for Solid State and Materials Research (IFW) DresdenHelmholtzstraße 2001069DresdenGermany
| | - Olga Kataeva
- A. E. Arbuzov Institute of Organic and Physical ChemistryFRC Kazan Scientific Center, Russian Academy of SciencesArbuzov Str. 8Kazan420088Russia
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3
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Li R, An Z. Achieving Ultrahigh Molecular Weights with Diverse Architectures for Unconjugated Monomers through Oxygen-Tolerant Photoenzymatic RAFT Polymerization. Angew Chem Int Ed Engl 2020; 59:22258-22264. [PMID: 32844514 DOI: 10.1002/anie.202010722] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/24/2020] [Indexed: 12/15/2022]
Abstract
Achieving well-defined polymers with ultrahigh molecular weight (UHMW) is an enduring pursuit in the field of reversible deactivation radical polymerization. Synthetic protocols have been successfully developed to achieve UHMWs with low dispersities exclusively from conjugated monomers while no polymerization of unconjugated monomers has provided the same level of control. Herein, an oxygen-tolerant photoenzymatic RAFT (reversible addition-fragmentation chain transfer) polymerization was exploited to tackle this challenge for unconjugated monomers at 10 °C, enabling facile synthesis of well-defined, linear and star polymers with near-quantitative conversions, unprecedented UHMWs and low dispersities. The exquisite level of control over composition, MW and architecture, coupled with operational ease, mild conditions and environmental friendliness, broadens the monomer scope to include unconjugated monomers, and to achieve previously inaccessible low-dispersity UHMWs.
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Affiliation(s)
- Ruoyu Li
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Zesheng An
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, China
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4
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Gualandi A, Nenov A, Marchini M, Rodeghiero G, Conti I, Paltanin E, Balletti M, Ceroni P, Garavelli M, Cozzi PG. Tailored Coumarin Dyes for Photoredox Catalysis: Calculation, Synthesis, and Electronic Properties. ChemCatChem 2020. [DOI: 10.1002/cctc.202001690] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Andrea Gualandi
- Dipartimento di Chimica “G. Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Artur Nenov
- Dipartimento di Chimica Industriale “T. Montanari” Alma Mater Studiorum – Università di Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Marianna Marchini
- Dipartimento di Chimica “G. Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Giacomo Rodeghiero
- Dipartimento di Chimica “G. Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
- Cyanagen Srl Via Stradelli Guelfi 40/C 40138 Bologna Italy
| | - Irene Conti
- Dipartimento di Chimica Industriale “T. Montanari” Alma Mater Studiorum – Università di Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Ettore Paltanin
- Dipartimento di Chimica Industriale “T. Montanari” Alma Mater Studiorum – Università di Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Matteo Balletti
- Dipartimento di Chimica “G. Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Paola Ceroni
- Dipartimento di Chimica “G. Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Marco Garavelli
- Dipartimento di Chimica Industriale “T. Montanari” Alma Mater Studiorum – Università di Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Pier Giorgio Cozzi
- Dipartimento di Chimica “G. Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
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5
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Mayer L, Kohlbecher R, Müller TJJ. Concatenating Suzuki Arylation and Buchwald-Hartwig Amination by A Sequentially Pd-Catalyzed One-Pot Process-Consecutive Three-Component Synthesis of C,N-Diarylated Heterocycles. Chemistry 2020; 26:15130-15134. [PMID: 32815662 PMCID: PMC7756286 DOI: 10.1002/chem.202003837] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Indexed: 12/20/2022]
Abstract
The concatenation of Suzuki coupling and Buchwald‐Hartwig amination in a consecutive multicomponent reaction opens a concise, modular and efficient one‐pot approach to diversely functionalized heterocycles, as exemplified for 3,10‐diaryl 10H‐phenothiazines, 3,9‐diaryl 9H‐carbazoles, and 1,5‐diaryl 1H‐indoles, in high yields starting from simple staring materials. Moreover, this one‐pot reaction is a sequentially palladium‐catalyzed process that does not require additional catalyst loading after the first coupling step.
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Affiliation(s)
- Laura Mayer
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Regina Kohlbecher
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Thomas J J Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
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6
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Li R, An Z. Achieving Ultrahigh Molecular Weights with Diverse Architectures for Unconjugated Monomers through Oxygen‐Tolerant Photoenzymatic RAFT Polymerization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ruoyu Li
- Institute of Nanochemistry and Nanobiology College of Environmental and Chemical Engineering Shanghai University Shanghai 200444 China
| | - Zesheng An
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education School of Life Sciences Jilin University Changchun 130012 China
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7
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8
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Li G, Xu G, Ge Y, Dai S. Synthesis of fluorinated polyethylene of different topologies via insertion polymerization with semifluorinated acrylates. Polym Chem 2020. [DOI: 10.1039/d0py00993h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Fluorinated polyethylene with different topologies can be generated via insertion polymerization with various late-transition-metal catalysts.
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Affiliation(s)
- Gen Li
- Institutes of Physical Science and Information Technology
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education
- Anhui University
- Hefei
- China
| | - Guoyong Xu
- Institutes of Physical Science and Information Technology
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education
- Anhui University
- Hefei
- China
| | - You Ge
- Institutes of Physical Science and Information Technology
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education
- Anhui University
- Hefei
- China
| | - Shengyu Dai
- Institutes of Physical Science and Information Technology
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education
- Anhui University
- Hefei
- China
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9
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Gong H, Gu Y, Zhao Y, Quan Q, Han S, Chen M. Precise Synthesis of Ultra‐High‐Molecular‐Weight Fluoropolymers Enabled by Chain‐Transfer‐Agent Differentiation under Visible‐Light Irradiation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912698] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Honghong Gong
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200433 China
| | - Yu Gu
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200433 China
| | - Yucheng Zhao
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200433 China
| | - Qinzhi Quan
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200433 China
| | - Shantao Han
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200433 China
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200433 China
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10
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Gong H, Gu Y, Zhao Y, Quan Q, Han S, Chen M. Precise Synthesis of Ultra-High-Molecular-Weight Fluoropolymers Enabled by Chain-Transfer-Agent Differentiation under Visible-Light Irradiation. Angew Chem Int Ed Engl 2019; 59:919-927. [PMID: 31659832 DOI: 10.1002/anie.201912698] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 10/28/2019] [Indexed: 01/12/2023]
Abstract
Ultra-high-molecular-weight (UHMW) polymers display outstanding properties and hold potential for wide applications. However, their precise synthesis remains challenging. Herein, we developed a novel reversible-deactivation radical polymerization based on the strong and selective fluorine-fluorine interaction, allowing chain-transfer agents to spontaneously differentiate into two groups that take charge of the chain growth and reversible deactivation of the growing chains, respectively. This method enables dramatically improved livingness of propagation, providing UHMW polymers with a surprisingly narrow molecular weight distribution (Đ≈1.1) from a variety of fluorinated (meth)acrylates and acrylamide at quantitative conversions under visible-light irradiation. In situ chain-end extensions from UHMW polymers facilitated the synthesis of well-defined block copolymers, revealing the excellent chain-end fidelity achieved by this method.
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Affiliation(s)
- Honghong Gong
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Yu Gu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Yucheng Zhao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Qinzhi Quan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Shantao Han
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
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11
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Nie H, Li S, Qian S, Han Z, Zhang W. Switchable Reversible Addition–Fragmentation Chain Transfer (RAFT) Polymerization with the Assistance of Azobenzenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huijun Nie
- Key Laboratory of Functional Polymer Materials of the Ministry of EducationInstitute of Polymer ChemistryCollege of ChemistryNankai University 300071 Tianjin China
| | - Shenzhen Li
- Key Laboratory of Functional Polymer Materials of the Ministry of EducationInstitute of Polymer ChemistryCollege of ChemistryNankai University 300071 Tianjin China
| | - Sijia Qian
- Key Laboratory of Functional Polymer Materials of the Ministry of EducationInstitute of Polymer ChemistryCollege of ChemistryNankai University 300071 Tianjin China
| | - Zhongqiang Han
- State Key Laboratory of Special Functional Waterproof MaterialsBeijing Oriental Yuhong Waterproof Technology Co., Ltd. 100123 Beijing China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of EducationInstitute of Polymer ChemistryCollege of ChemistryNankai University 300071 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University 300071 Tianjin China
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12
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Nie H, Li S, Qian S, Han Z, Zhang W. Switchable Reversible Addition-Fragmentation Chain Transfer (RAFT) Polymerization with the Assistance of Azobenzenes. Angew Chem Int Ed Engl 2019; 58:11449-11453. [PMID: 31190462 DOI: 10.1002/anie.201904991] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/22/2019] [Indexed: 12/31/2022]
Abstract
Modulating controlled radical polymerization is an interesting and important issue. Herein, modulating RAFT polymerization employing photosensitive azobenzenes is achieved. In the presence of azobenzenes and with visible light off, RAFT polymerization runs smoothly and follows a pseudo-first-order kinetics. In contrast, with light on, RAFT polymerization is greatly decelerated or quenched depending on the type and concentration of azobenzenes. Switchable RAFT polymerization of different (meth)acrylate monomers alternatively with light off and on is demonstrated. A mechanism of photoregulating RAFT polymerization involving radical quenching by azobenzenes is proposed.
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Affiliation(s)
- Huijun Nie
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Shenzhen Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Sijia Qian
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Zhongqiang Han
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd., 100123, Beijing, China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, 300071, Tianjin, China
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13
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Corrigan N, Yeow J, Judzewitsch P, Xu J, Boyer C. Seeing the Light: Advancing Materials Chemistry through Photopolymerization. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201805473] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nathaniel Corrigan
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine School of Chemical Engineering UNSW Sydney Australia
| | - Jonathan Yeow
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine School of Chemical Engineering UNSW Sydney Australia
| | - Peter Judzewitsch
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine School of Chemical Engineering UNSW Sydney Australia
| | - Jiangtao Xu
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine School of Chemical Engineering UNSW Sydney Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine School of Chemical Engineering UNSW Sydney Australia
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14
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Corrigan N, Yeow J, Judzewitsch P, Xu J, Boyer C. Seeing the Light: Advancing Materials Chemistry through Photopolymerization. Angew Chem Int Ed Engl 2019; 58:5170-5189. [PMID: 30066456 DOI: 10.1002/anie.201805473] [Citation(s) in RCA: 340] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Indexed: 12/20/2022]
Abstract
The application of photochemistry to polymer and material science has led to the development of complex yet efficient systems for polymerization, polymer post-functionalization, and advanced materials production. Using light to activate chemical reaction pathways in these systems not only leads to exquisite control over reaction dynamics, but also allows complex synthetic protocols to be easily achieved. Compared to polymerization systems mediated by thermal, chemical, or electrochemical means, photoinduced polymerization systems can potentially offer more versatile methods for macromolecular synthesis. We highlight the utility of light as an energy source for mediating photopolymerization, and present some promising examples of systems which are advancing materials production through their exploitation of photochemistry.
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Affiliation(s)
- Nathaniel Corrigan
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine, School of Chemical Engineering, UNSW, Sydney, Australia
| | - Jonathan Yeow
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine, School of Chemical Engineering, UNSW, Sydney, Australia
| | - Peter Judzewitsch
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine, School of Chemical Engineering, UNSW, Sydney, Australia
| | - Jiangtao Xu
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine, School of Chemical Engineering, UNSW, Sydney, Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design and Australian Centre for Nanomedicine, School of Chemical Engineering, UNSW, Sydney, Australia
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15
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Liu P, Ma H, Han L, Shen H, Yang L, Li C, Hao X, Li Y. Investigation of the Locked-Unlocked Mechanism in Living Anionic Polymerization Realized with 1-(Tri-isopropoxymethylsilylphenyl)-1-phenylethylene. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809857] [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)
- Pibo Liu
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Hongwei Ma
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Li Han
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Heyu Shen
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Lincan Yang
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Chao Li
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Xinyu Hao
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Yang Li
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
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16
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Liu P, Ma H, Han L, Shen H, Yang L, Li C, Hao X, Li Y. Investigation of the Locked-Unlocked Mechanism in Living Anionic Polymerization Realized with 1-(Tri-isopropoxymethylsilylphenyl)-1-phenylethylene. Angew Chem Int Ed Engl 2018; 57:16538-16543. [DOI: 10.1002/anie.201809857] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Pibo Liu
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Hongwei Ma
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Li Han
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Heyu Shen
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Lincan Yang
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Chao Li
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Xinyu Hao
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Yang Li
- State Key Laboratory of Fine Chemicals; Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
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17
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Zhang Z, Chen CL, Chen YA, Wei YC, Su J, Tian H, Chou PT. Tuning the Conformation and Color of Conjugated Polyheterocyclic Skeletons by Installing ortho-Methyl Groups. Angew Chem Int Ed Engl 2018; 57:9880-9884. [PMID: 29897660 DOI: 10.1002/anie.201806385] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Indexed: 11/11/2022]
Abstract
ortho-Methyl effects are exploited to tune steric hindrance between side-chain N,N'-diaryls and polycyclic dihydrodibenzo[a,c]phenazine, and in turn control the conformations of N,N'-diphenyl-dihydrodibenzo[a,c]phenazine (DPAC) and its ortho-methyl derivatives Mx-My (x=0, 1 or 2, y=1 or 2, x and y correlate with the number of methyl groups in the ortho-positiond of N,N'-diphenyl). The magnitude of steric hindrance increases as x and y increase, and the V-shaped dihydrodibenzo[a,c]phenazine skeleton is gradually tuned from a bent (DPAC) to planar (M2-M2) structure in the ground state. As a result, the relaxation of the excited-state structure of DPAC and its numerous analogues could be mimicked by model structures Mx-My, demonstrating for the first time the the conformation change from bent-to-planar and hence a large range of energy-gap tuning of polycyclic conjugated structures controlled by the steric hindrance.
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Affiliation(s)
- Zhiyun Zhang
- Department of Chemistry, National (Taiwan) University, Taipei, 10617, Taiwan R.O.C
| | - Chi-Lin Chen
- Department of Chemistry, National (Taiwan) University, Taipei, 10617, Taiwan R.O.C
| | - Yi-An Chen
- Department of Chemistry, National (Taiwan) University, Taipei, 10617, Taiwan R.O.C
| | - Yu-Chen Wei
- Department of Chemistry, National (Taiwan) University, Taipei, 10617, Taiwan R.O.C
| | - Jianhua Su
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - He Tian
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Pi-Tai Chou
- Department of Chemistry, National (Taiwan) University, Taipei, 10617, Taiwan R.O.C
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18
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Zhang Z, Chen CL, Chen YA, Wei YC, Su J, Tian H, Chou PT. Tuning the Conformation and Color of Conjugated Polyheterocyclic Skeletons by Installing ortho
-Methyl Groups. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806385] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhiyun Zhang
- Department of Chemistry; National (Taiwan) University; Taipei 10617 Taiwan R.O.C
| | - Chi-Lin Chen
- Department of Chemistry; National (Taiwan) University; Taipei 10617 Taiwan R.O.C
| | - Yi-An Chen
- Department of Chemistry; National (Taiwan) University; Taipei 10617 Taiwan R.O.C
| | - Yu-Chen Wei
- Department of Chemistry; National (Taiwan) University; Taipei 10617 Taiwan R.O.C
| | - Jianhua Su
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science & Technology; Shanghai 200237 P. R. China
| | - He Tian
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science & Technology; Shanghai 200237 P. R. China
| | - Pi-Tai Chou
- Department of Chemistry; National (Taiwan) University; Taipei 10617 Taiwan R.O.C
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19
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Zhu N, Hu X, Fang Z, Guo K. Continuous Flow Photoinduced Reversible Deactivation Radical Polymerization. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ning Zhu
- College of Biotechnology and Pharmaceutical Engineering State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211800 China
| | - Xin Hu
- College of Materials Science and Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211800 China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211800 China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211800 China
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20
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Liu S, Cheng Y, Zhang H, Qiu Z, Kwok RTK, Lam JWY, Tang BZ. In Situ Monitoring of RAFT Polymerization by Tetraphenylethylene‐Containing Agents with Aggregation‐Induced Emission Characteristics. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803268] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Shunjie Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Division of Life Science and Division of Biomedical Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Yanhua Cheng
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Division of Life Science and Division of Biomedical Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Haoke Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Division of Life Science and Division of Biomedical Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Zijie Qiu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Division of Life Science and Division of Biomedical Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Ryan T. K. Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Division of Life Science and Division of Biomedical Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Jacky W. Y. Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Division of Life Science and Division of Biomedical Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Division of Life Science and Division of Biomedical Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
- NFSC Center for Luminescence from Molecular Aggregates SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
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21
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Liu S, Cheng Y, Zhang H, Qiu Z, Kwok RTK, Lam JWY, Tang BZ. In Situ Monitoring of RAFT Polymerization by Tetraphenylethylene-Containing Agents with Aggregation-Induced Emission Characteristics. Angew Chem Int Ed Engl 2018; 57:6274-6278. [PMID: 29633451 DOI: 10.1002/anie.201803268] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Indexed: 12/24/2022]
Abstract
A facile and efficient approach is demonstrated to visualize the polymerization in situ. A group of tetraphenylethylene (TPE)-containing dithiocarbamates were synthesized and screened as agents for reversible addition fragmentation chain transfer (RAFT) polymerizations. The spatial-temporal control characteristics of photochemistry enabled the RAFT polymerizations to be ON and OFF on demand under alternating visible light irradiation. The emission of TPE is sensitive to the local viscosity change owing to its aggregation-induced emission characteristic. Quantitative information could be easily acquired by the naked eye without destroying the reaction system. Furthermore, the versatility of such a technique was well demonstrated by 12 different polymerization systems. The present approach thus demonstrated a powerful platform for understanding the controlled living radical polymerization process.
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Affiliation(s)
- Shunjie Liu
- Department of Chemistry, Hong Kong Branch of Chinese National, Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Yanhua Cheng
- Department of Chemistry, Hong Kong Branch of Chinese National, Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Haoke Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National, Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Zijie Qiu
- Department of Chemistry, Hong Kong Branch of Chinese National, Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Ryan T K Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National, Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National, Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National, Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China.,NFSC Center for Luminescence from Molecular Aggregates, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
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22
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Tang S, Wang S, Liu Y, Cong H, Lei A. Electrochemical Oxidative C-H Amination of Phenols: Access to Triarylamine Derivatives. Angew Chem Int Ed Engl 2018; 57:4737-4741. [PMID: 29498166 DOI: 10.1002/anie.201800240] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 01/11/2018] [Indexed: 01/07/2023]
Abstract
Dehydrogenative C-H/N-H cross-coupling serves as one of the most straightforward and atom-economical approaches for C-N bond formation. In this work, an electrochemical reaction protocol has been developed for the oxidative C-H amination of unprotected phenols under undivided electrolytic conditions. Neither metal catalysts nor chemical oxidants are needed to facilitate the dehydrogenation process. A series of triarylamine derivatives could be obtained with good functional-group tolerance. The electrolysis is scalable and can be performed at ambient conditions.
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Affiliation(s)
- Shan Tang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Siyuan Wang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Yichang Liu
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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23
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Tang S, Wang S, Liu Y, Cong H, Lei A. Electrochemical Oxidative C−H Amination of Phenols: Access to Triarylamine Derivatives. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800240] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shan Tang
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies (IAS); Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Siyuan Wang
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies (IAS); Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Yichang Liu
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies (IAS); Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies (IAS); Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies (IAS); Wuhan University; Wuhan 430072 Hubei P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
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24
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Shen L, Guo H, Zheng J, Wang X, Yang Y, An Z. RAFT Polymerization-Induced Self-Assembly as a Strategy for Versatile Synthesis of Semifluorinated Liquid-Crystalline Block Copolymer Nanoobjects. ACS Macro Lett 2018; 7:287-292. [PMID: 35632919 DOI: 10.1021/acsmacrolett.8b00070] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Polymerization-induced self-assembly is demonstrated as a powerful platform for the synthesis of block copolymers comprising a semifluorinated liquid-crystalline block. This strategy transforms the deficiency of polymer insolubility encountered in traditional homogeneous solution protocols to the strength for dispersion polymerization, thus, enabling direct access to polymorphic block copolymer nanoobjects at high concentrations and with quantitative conversions. The versatility of this strategy is highlighted by polymerizations in a wide selection of inexpensive solvents, from nonpolar to highly polar, to afford various block copolymers with distinct combinations of amorphous/crystalline or hydrophilic/hydrophobic/fluorinated segments. The utility of the nanoparticles is demonstrated as robust Pickering emulsifiers for commonly considered good solvents.
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Affiliation(s)
- Liangliang Shen
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Huazhang Guo
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Jinwen Zheng
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xiao Wang
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Yongqi Yang
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Zesheng An
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
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