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Sun S, Liang M, Fan D, Gu W, Wang Z, Shi L, Geng N. Occurrence and profiles of perfluoroalkyl substances in wastewaters of chemical industrial parks and receiving river waters: Implications for the environmental impact of wastewater discharge. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:173993. [PMID: 38879026 DOI: 10.1016/j.scitotenv.2024.173993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 05/07/2024] [Accepted: 06/12/2024] [Indexed: 06/21/2024]
Abstract
A total of 17 groups of wastewaters from the chemical industrial parks and matched receiving river waters were collected in the east of China. The measured total concentrations of 21 analyzed PFAS analogues (∑21PFAS) in the influents and effluents of the wastewater treatment plants (WWTPs) were in the range of 0.172-20.6 μg/L (mean: 18.2 μg/L, median: 3.9 μg/L) and 0.167-93.6 μg/L (mean: 10.8 μg/L, median: 1.12 μg/L), respectively, which were significantly higher than those observed in the upstream (range: 0.0158-7.05 μg/L, mean: 1.09 μg/L, median: 0.482 μg/L) and downstream (range: 0.0237-1.82 μg/L, mean: 0.697 μg/L, median: 0.774 μg/L) receiving waters. Despite the concentrations and composition profiles of PFAS varied in the water samples from different sampling sites, PFOA was generally the major PFAS analogue in the research areas, mainly due to the history of PFOA production and usage as well as the specific exemptions. The calculated concentration ratios of the short-chain PFCAs and PFSAs to their respective predecessors (PFOA and PFOS) in most of the samples far exceeded 1, indicating a shift from legacy PFOA and PFOS to short-chain PFAS in the research areas. Correlation network analysis and the calculated concentration ratios of PFAS in the effluents versus influents indicated transformation may have occurred during the water treatment processes and PFAS could not be efficiently removed in the WWTPs. Wastewater discharge of chemical industrial parks is a vital source of PFAS dispersed into the aquatic environment.
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Affiliation(s)
- Shuai Sun
- Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China
| | - Mengyuan Liang
- Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China
| | - Deling Fan
- Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China
| | - Wen Gu
- Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China
| | - Zhen Wang
- Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China.
| | - Lili Shi
- Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China
| | - Ningbo Geng
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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2
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Sherrell PC, Šutka A, Timusk M, Šutka A. Alternatives to Fluoropolymers for Motion-Based Energy Harvesting: Perspectives on Piezoelectricity, Triboelectricity, Ferroelectrets, and Flexoelectricity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311570. [PMID: 38483028 DOI: 10.1002/smll.202311570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/29/2024] [Indexed: 08/09/2024]
Abstract
Fluoropolymers, including polytetrafluoroethylene (PTFE, Teflon), polyvinylidene difluoride (PVDF), and fluorine kautschuk materials (FKMs, Viton) are critical polymers for applications ranging from non-stick coatings, corrosion resistant seals, semiconductor manufacturing, membranes, and energy harvesting technologies. However, the synthesis of these fluoropolymers requires the use of per- and polyfluorinated alkyl substances (PFAS) known colloquially as "forever chemicals," and as such there is a pressing need to develop alternative technologies that can serve the end-use of fluoropolymers without the environmental cost of using PFAS. Further, fluoropolymers themselves fall under the PFAS umbrella. Here, alternative mechanical-to-electrical energy harvesting polymers are reviewed and benchmarked against the leading fluoropolymer energy harvesters. These alternative technologies include nonfluoropolymer piezoelectric polymers, triboelectric nanogenerators (TENGs), ferroelectric elastomers, and flexoelectric polymers. A vision towards sustainable, non-fluoropolymer-based energy harvesting is provided.
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Affiliation(s)
- Peter C Sherrell
- School of Science, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Anna Šutka
- Institute of Surface and Materials Engineering, Riga Technical University, Riga, LV-1048, Latvia
| | - Martin Timusk
- Institute of Physics, University of Tartu, Tartu, 50411, Estonia
| | - Andris Šutka
- Institute of Surface and Materials Engineering, Riga Technical University, Riga, LV-1048, Latvia
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3
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Fornacon-Wood C, Stühler MR, Millanvois A, Steiner L, Weimann C, Silbernagl D, Sturm H, Paulus B, Plajer AJ. Fluoride recovery in degradable fluorinated polyesters. Chem Commun (Camb) 2024; 60:7479-7482. [PMID: 38939919 DOI: 10.1039/d4cc02513j] [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
We report a new class of degradable fluorinated polymers through the copolymerization of tetrafluorophthalic anhydride and propylene oxide or trifluoropropylene oxide which show up to 20 times quicker degradation than the non-fluorinated equivalents and allow for fluoride recovery.
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Affiliation(s)
- Christoph Fornacon-Wood
- Makromolekulare Chemie 1, Universität Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany.
| | - Merlin R Stühler
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arminallee 22, 14195 Berlin, Germany
| | - Alexandre Millanvois
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arminallee 22, 14195 Berlin, Germany
| | - Luca Steiner
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arminallee 22, 14195 Berlin, Germany
| | - Christiane Weimann
- Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, Berlin 12205, Germany
| | - Dorothee Silbernagl
- Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, Berlin 12205, Germany
| | - Heinz Sturm
- Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, Berlin 12205, Germany
| | - Beate Paulus
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arminallee 22, 14195 Berlin, Germany
| | - Alex J Plajer
- Makromolekulare Chemie 1, Universität Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany.
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4
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Ma M, Guo X, Wen P, Han S, Zhang L, Liu Y, Lin X, Chen M. Reactive Solid Polymer Layer: From a Single Fluoropolymer to Divergent Fluorinated Interface. Angew Chem Int Ed Engl 2024:e202407304. [PMID: 38898368 DOI: 10.1002/anie.202407304] [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: 04/17/2024] [Revised: 06/19/2024] [Accepted: 06/19/2024] [Indexed: 06/21/2024]
Abstract
Controlling the structure and chemistry of solid electrolyte interphase (SEI) underpins the stability of electrolyte-electrode interface, and is crucial for advancing rechargeable lithium metal batteries (LMBs). Here, we utilized photo-controlled copolymerization to achieve the on-demand synthesis of fluorosulfonyl fluoropolymers as unprecedented artificial SEI layers on Li metal anodes. This work not only enables instant formation of a hybrid polymer-inorganic interphase that consists of a polymer-enriched top layer and a LiF-fortified bottom layer, originating from a single polymeric component, but also imparts various desirable physical properties (e.g., good mechanical strength and flexibility, high ion conductivity, low overpotential) to SEI via a single-to-divergent strategy. Model reactions and structural characterizations supported the formation of a divergent fluorinated interphase, which furnished prolonged stabilization of Li deposition, high coulombic efficiency and improved cycling behavior in electrochemical experiments. This work highlights the great potential of exploring reactive polymers as versatile coatings to stabilize Li metal anodes, providing a promising avenue to solve electrode-electrolyte interfacial problems for LMBs.
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Affiliation(s)
- Mingyu Ma
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Xing Guo
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Peng Wen
- 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
| | - Lu Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Yixuan Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Xinrong Lin
- Division of Natural and Applied Sciences, Duke Kunshan University, Kunshan, Jiangsu, 215306, China
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
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5
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Satulu V, Pandele AM, Ionica GI, Bobirică L, Bonciu AF, Scarlatescu A, Bobirică C, Orbeci C, Voicu SI, Mitu B, Dinescu G. Robust CA-GO-TiO 2/PTFE Photocatalytic Membranes for the Degradation of the Azithromycin Formulation from Wastewaters. Polymers (Basel) 2024; 16:1368. [PMID: 38794561 PMCID: PMC11125009 DOI: 10.3390/polym16101368] [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: 03/25/2024] [Revised: 04/30/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
We have developed an innovative thin-film nanocomposite membrane that contains cellulose acetate (CA) with small amounts of TiO2-decorated graphene oxide (GO) (ranging from 0.5 wt.% to 2 wt.%) sandwiched between two polytetrafluoroethylene (PTFE)-like thin films. The PTFE-like films succeeded in maintaining the bulk porosity of the support while increasing the thermal and chemical robustness of the membrane and boosting the catalytic activity of TiO2 nanoparticles. The membranes exhibited a specific chemical composition and bonding, with predominant carbon-oxygen bonds from CA and GO in the bulk, and carbon-fluorine bonds on their PTFE-like coated sides. We have also tested the membranes' photocatalytic activities on azithromycin-containing wastewaters, demonstrating excellent efficiency with more than 80% degradation for 2 wt.% TiO2-decorated GO in the CA-GO-TiO2/PTFE-like membranes. The degradation of the azithromycin formulation occurs in two steps, with reaction rates being correlated to the amount of GO-TiO2 in the membranes.
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Affiliation(s)
- Veronica Satulu
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (V.S.); (A.F.B.); (A.S.); (G.D.)
| | - Andreea Madalina Pandele
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (G.-I.I.); (L.B.); (C.B.); (C.O.)
- Advanced Polymers Materials, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
| | - Giovanina-Iuliana Ionica
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (G.-I.I.); (L.B.); (C.B.); (C.O.)
| | - Liliana Bobirică
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (G.-I.I.); (L.B.); (C.B.); (C.O.)
| | - Anca Florina Bonciu
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (V.S.); (A.F.B.); (A.S.); (G.D.)
| | - Alexandra Scarlatescu
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (V.S.); (A.F.B.); (A.S.); (G.D.)
- Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
| | - Constantin Bobirică
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (G.-I.I.); (L.B.); (C.B.); (C.O.)
| | - Cristina Orbeci
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (G.-I.I.); (L.B.); (C.B.); (C.O.)
| | - Stefan Ioan Voicu
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (G.-I.I.); (L.B.); (C.B.); (C.O.)
- Advanced Polymers Materials, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
| | - Bogdana Mitu
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (V.S.); (A.F.B.); (A.S.); (G.D.)
| | - Gheorghe Dinescu
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (V.S.); (A.F.B.); (A.S.); (G.D.)
- Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
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6
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Schwaderer J, Drache M, Beuermann S. Temperature Dependence of the Number of Defect-Structures in Poly(vinylidene fluoride). Molecules 2024; 29:1551. [PMID: 38611830 PMCID: PMC11013231 DOI: 10.3390/molecules29071551] [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: 03/02/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Poly(vinylidene fluoride) (PVDF) is predominantly characterized by alternating CH2 and CF2 units in a polymer backbone, originating from the head-to-tail addition of monomers or regular propagation. Due, to a small extent, to inverse monomer addition, so-called defect structures occur which influence the macroscopic properties of PVDF significantly. The amount of defect structures in the material is determined by the polymerization conditions. Here, the temperature dependence of the fraction of defect structures in PVDF obtained from polymerizations between 45 and 90 °C is reported. We utilized 19F-NMR spectroscopy to determine the fraction of defect structures as a function of temperature. To derive kinetic data, the polymerization of VDF is considered a quasi-copolymerization described by the Terminal Model involving four different propagation reactions. Based on the experimentally determined temperature-dependent fractions of defect structures, the known overall propagation rate coefficient, and taking into account the self-healing behavior of the macroradical, the Arrhenius parameters of the individual propagation rate coefficients were determined using the Monte Carlo methods.
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Affiliation(s)
| | | | - Sabine Beuermann
- Institute of Technical Chemistry, Clausthal University of Technology, Arnold-Sommerfeld-Straße 4, 38678 Clausthal-Zellerfeld, Germany; (J.S.); (M.D.)
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7
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Chen Q, Sun Q, Yan J, Cui Y, Yang L, Yang X, Wu Z. Development and Recent Progress of Hoses for Cryogenic Liquid Transportation. Polymers (Basel) 2024; 16:905. [PMID: 38611163 PMCID: PMC11013078 DOI: 10.3390/polym16070905] [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: 02/09/2024] [Revised: 03/20/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
Recently, the application of cryogenic hoses in the field of cryogenic media has become a hot topic, especially in the industry of offshore liquefied natural gas and aerospace field. However, the structure of cryogenic hoses is complex, and reasonable structural properties are required due to the harsh working conditions. There is still plenty of scope for further development to improve the performance in all aspects. In this paper, the current development status of cryogenic hoses for liquefied natural gas (LNG) transportation is reviewed first, including the types, manufacturers, structural forms, performance, and key technical challenges. And then, the recent progress and prospect of cryogenic hoses for cryogenic liquid transportation (such as LNG and liquid oxygen) are summarized, including structure design, low-temperature resistant polymers, liquid oxygen compatible polymers, and leakage monitoring technologies. This paper provides a comprehensive overview of the research development and application of cryogenic hoses. Moreover, future research directions have been proposed to facilitate its practical applications in aerospace.
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Affiliation(s)
- Qiang Chen
- State Key Laboratory of Technology in Space Cryogenic Propellants, Beijing Special Engineering Design and Research Institute, Beijing 100028, China; (Q.C.); (Q.S.); (L.Y.); (X.Y.)
| | - Qingguo Sun
- State Key Laboratory of Technology in Space Cryogenic Propellants, Beijing Special Engineering Design and Research Institute, Beijing 100028, China; (Q.C.); (Q.S.); (L.Y.); (X.Y.)
| | - Jia Yan
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yunguang Cui
- School of Mechanics and Aerospace Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Lufeng Yang
- State Key Laboratory of Technology in Space Cryogenic Propellants, Beijing Special Engineering Design and Research Institute, Beijing 100028, China; (Q.C.); (Q.S.); (L.Y.); (X.Y.)
| | - Xiaojing Yang
- State Key Laboratory of Technology in Space Cryogenic Propellants, Beijing Special Engineering Design and Research Institute, Beijing 100028, China; (Q.C.); (Q.S.); (L.Y.); (X.Y.)
| | - Zhanjun Wu
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
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8
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Dalmijn J, Glüge J, Scheringer M, Cousins IT. Emission inventory of PFASs and other fluorinated organic substances for the fluoropolymer production industry in Europe. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024; 26:269-287. [PMID: 38231136 DOI: 10.1039/d3em00426k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Fluoropolymers are a group of fluorinated polymers within the broad class of substances known as per- and polyfluoroalkyl substances (PFASs). During their production, a wide array of additional fluorinated organic substances (many PFASs and some not defined as PFASs) are used, formed and emitted to air and water. This study aims to assess, and make an inventory of, all emissions of PFASs and other fluorinated organic substances by the fluoropolymer production industry in Europe using available emission databases and permits. Air emissions of the fluorinated gases (i.e., chlorofluorocarbons, hydrofluorocarbons, hydrochlorofluorocarbons and perfluorocarbons (CFCs, H(C)FCs and PFCs)) by this industry have reportedly decreased between 2007 and 2021 from roughly 500 to 150 tonnes per year. Emissions of fluorosurfactants to air and water have also been reduced significantly. However, large uncertainties remain regarding the emissions of substances that are neither fluorinated gases nor fluorosurfactants but are classified as PFASs, such as polymerization by-products, chain transfer agents and fluorinated solvents. The available data indicate that the release of these substances is not decreasing but remains relatively stable. As this inventory probably underestimates emissions, further research, improved data availability and more harmonized reporting of emissions are necessary to obtain more accurate emission data for these substances. Nevertheless, based on the available data, it is clear that the emissions from fluoropolymer production plants to air and water are still significant and that the production of fluoropolymers continues to introduce persistent substances to the environment.
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Affiliation(s)
- Joost Dalmijn
- Department of Environmental Science, Stockholm University, SE-10691 Stockholm, Sweden.
| | - Juliane Glüge
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland
| | - Martin Scheringer
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland
| | - Ian T Cousins
- Department of Environmental Science, Stockholm University, SE-10691 Stockholm, Sweden.
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Shibata H, Nakayama M, Tagami K, Kanbara T, Yajima T. Hydroxy- and Hydro-Perfluoroalkylation of Styrenes by Controlling the Quenching Cycle of Eosin Y. Molecules 2023; 28:7577. [PMID: 38005299 PMCID: PMC10674426 DOI: 10.3390/molecules28227577] [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: 10/22/2023] [Revised: 11/11/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023] Open
Abstract
Fluoroalkyl compounds are widely used, underscoring a pressing need for the development of methods for their synthesis. However, reports on perfluoroalkylation to styrenes have been sparse. In this study, both hydroxy- and hydro-perfluoroalkylation of styrene were achieved using visible light reactions, catalyzed by eosin Y, by selecting appropriate additives and controlling the eosin Y quenching cycle. These reactions are heavy-metal free, use water as the hydroxyl or hydrogen source, and employ inexpensive and readily available reagents.
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Affiliation(s)
| | | | | | | | - Tomoko Yajima
- Department of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bukyo-ku, Tokyo 104-8610, Japan
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10
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Sumii Y, Shibata N. Current State of Microflow Trifluoromethylation Reactions. CHEM REC 2023; 23:e202300117. [PMID: 37309300 DOI: 10.1002/tcr.202300117] [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: 04/03/2023] [Revised: 05/25/2023] [Indexed: 06/14/2023]
Abstract
The trifluoromethyl group is a powerful structural motif in drugs and polymers; thus, developing trifluoromethylation reactions is an important area of research in organic chemistry. Over the past few decades, significant progress has been made in developing new methods for the trifluoromethylation of organic molecules, ranging from nucleophilic and electrophilic approaches to transition-metal catalysis, photocatalysis, and electrolytic reactions. While these reactions were initially developed in batch systems, more recent microflow versions are highly attractive for industrial applications owing to their scalability, safety, and time efficiency. In this review, we discuss the current state of microflow trifluoromethylation. Approaches for microflow trifluoromethylation based on different trifluoromethylation reagents are described, including continuous flow, flow photochemical, microfluidic electrochemical reactions, and large-scale microflow reactions.
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Affiliation(s)
- Yuji Sumii
- Department of Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya, 466-8555, Japan
| | - Norio Shibata
- Department of Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya, 466-8555, Japan
- Department of Nanopharmaceutical Sciences, Department of Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya, 466-8555, Japan
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11
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Naderi P, Sheuten BR, Amirfazli A, Grau G. Inkjet printing on hydrophobic surfaces: Controlled pattern formation using sequential drying. J Chem Phys 2023; 159:024712. [PMID: 37449579 DOI: 10.1063/5.0149663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023] Open
Abstract
Inkjet-printed micro-patterns on hydrophobic surfaces have promising applications in the fabrication of microscale devices such as organic thin-film transistors. The low wettability of the surface prevents the inkjet-printed droplets from spreading, connecting to each other, and forming a pattern. Consequently, it is challenging to form micro-patterns on surfaces with low wettability. Here, we propose a sequential printing and drying method to form micro-patterns and control their shape. The first set of droplets is inkjet-printed at a certain spacing and dried. The second set of droplets is printed between these dry anchors on the surface with low wettability. As a result, a stable bridge on the surface with low wettability forms. This printing method is extended to more complicated shapes such as triangles. By implementing an energy minimization technique, a simple model was devised to predict the shape of the inkjet-printed micro-patterns while confirming that their equilibrium shape is mainly governed by surface tension forces. The gradient descent method was utilized with parametric boundaries to emulate droplet pinning and wettability of the anchors and to prevent convergence issues from occurring in the simulations. Finally, the energy minimization based simulations were used to predict the required ink to produce dry lines and triangles with smooth edges.
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Affiliation(s)
- Paria Naderi
- Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario M3J 1P3, Canada
| | | | - Alidad Amirfazli
- Department of Mechanical Engineering, York University, Toronto, Ontario M3J 1P3, Canada
| | - Gerd Grau
- Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario M3J 1P3, Canada
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12
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Li HW, Luo YC, Yu LC, Zhang X. Palladium-catalyzed highly selective gem-difluoroallylation of propargyl sulfonates with gem-difluoroallylboron. Chem Commun (Camb) 2023; 59:4241-4244. [PMID: 36942558 DOI: 10.1039/d2cc06613k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
A palladium-catalyzed gem-difluoroallylation of propargyl sulfonates with gem-difluoroallylboron has been developed. The reaction features synthetic simplicity and high functional group tolerance, affording 3,3-difluoro-skipped 1,5-enynes with high efficiency and regioselectivity. In particular, the resulting products can serve as versatile synthons for diversified transformations, having potential applications in medicinal chemistry.
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Affiliation(s)
- Hao-Wen Li
- Green Catalysis Center, and College of Chemistry, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Yun-Cheng Luo
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China.
| | - Ling-Chao Yu
- Green Catalysis Center, and College of Chemistry, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450001, P. R. China
- State Key Laboratory of Fluorinated Functional Membrane Materials, Zibo, 256401, China
| | - Xingang Zhang
- Green Catalysis Center, and College of Chemistry, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China.
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13
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Kanbara T, Arase M, Tanaka M, Yamaguchi A, Tagami K, Yajima T. Amine-catalyzed Synthesis of Fluorine-containing Polymers through Halogen Bonding. Chem Asian J 2023; 18:e202300035. [PMID: 36811265 DOI: 10.1002/asia.202300035] [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: 01/14/2023] [Revised: 02/12/2023] [Accepted: 02/21/2023] [Indexed: 02/24/2023]
Abstract
Fluorine-containing polymers are one of the most useful materials among various polymers. In this study, we have developed synthesis methods for fluorine-containing polymers through sequential and chain polymerization based on the generation of perfluoroalkyl radicals by photoirradiation halogen bonding of perfluoroalkyl iodide and amines. In sequential polymerization, fluoroalkyl-alkyl-alternating polymers were synthesized by the polyaddition of diene and diiodoperfluoroalkane. In chain polymerization, polymers with perfluoroalkyl terminals were synthesized by polymerization of general-purpose monomers, with perfluoroalkyl iodide as the initiating species. Block polymers were also synthesized by successive chain polymerization to the polyaddition product.
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Affiliation(s)
- Tadashi Kanbara
- Department of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, Japan
| | - Mizuki Arase
- Department of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, Japan
| | - Miyu Tanaka
- Department of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, Japan
| | - Airi Yamaguchi
- Department of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, Japan
| | - Koto Tagami
- Department of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, Japan
| | - Tomoko Yajima
- Department of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, Japan
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14
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Original Fluorinated Non-Isocyanate Polyhydroxyurethanes. Molecules 2023; 28:molecules28041795. [PMID: 36838787 PMCID: PMC9964802 DOI: 10.3390/molecules28041795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
New fluorinated polyhydroxyurethanes (FPHUs) with various molar weights were synthesized via the polyaddition reaction of a fluorinated telechelic bis(cyclocarbonate) (bis-CC) with a diamine. The fluorinated bis-CC was initially synthesized by carbonylation of a fluorinated diepoxide, 1,4-bis(2',3'-epoxypropyl)perfluorobutane, in the presence of LiBr catalyst, in high yield. Then, several reaction conditions were optimized through the model reactions of the fluorinated bis-CC with hexylamine. Subsequently, fluorinated polymers bearing hydroxyurethane moieties (FPHUs) were prepared by reacting the bis-CC with different hexamethylenediamine amounts in bulk at 80 °C and the presence of a catalyst. The chemoselective polymerization reaction yielded three isomers bearing primary and secondary hydroxyl groups in 61-82% yield. The synthesized fluorinated CCs and the corresponding FPHUs were characterized by 1H, 19F, and 13C NMR spectroscopy. They were compared to their hydrogenated homologues synthesized in similar conditions. The gel permeation chromatography (GPC), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA) data of the FPHUs revealed a higher molar mass and a slight increase in glass transition and decomposition temperatures compared to those of the PHUs.
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15
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Surface Modification of Electrospun Bioresorbable and Biostable Scaffolds by Pulsed DC Magnetron Sputtering of Titanium for Gingival Tissue Regeneration. Polymers (Basel) 2022; 14:polym14224922. [PMID: 36433049 PMCID: PMC9698656 DOI: 10.3390/polym14224922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, polymer scaffolds were fabricated from biodegradable poly(lactide-co-glycolide) (PLGA) and from non-biodegradable vinylidene fluoride-tetrafluoroethylene (VDF-TeFE) by electrospinning. These polymer scaffolds were subsequently surface-modified by sputtering titanium targets in an argon atmosphere. Direct current pulsed magnetron sputtering was applied to prevent a significant influence of discharge plasma on the morphology and mechanical properties of the nonwoven polymer scaffolds. The scaffolds with initially hydrophobic properties show higher hydrophilicity and absorbing properties after surface modification with titanium. The surface modification by titanium significantly increases the cell adhesion of both the biodegradable and the non-biodegradable scaffolds. Immunocytochemistry investigations of human gingival fibroblast cells on the surface-modified scaffolds indicate that a PLGA scaffold exhibits higher cell adhesion than a VDF-TeFE scaffold.
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16
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Panakkal V, Havlicek D, Pavlova E, Filipová M, Bener S, Jirak D, Sedlacek O. Synthesis of 19F MRI Nanotracers by Dispersion Polymerization-Induced Self-Assembly of N-(2,2,2-Trifluoroethyl)acrylamide in Water. Biomacromolecules 2022; 23:4814-4824. [PMID: 36251480 PMCID: PMC10797588 DOI: 10.1021/acs.biomac.2c00981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/05/2022] [Indexed: 11/29/2022]
Abstract
19F magnetic resonance imaging (MRI) using fluoropolymer tracers has recently emerged as a promising, non-invasive diagnostic tool in modern medicine. However, despite its potential, 19F MRI remains overlooked and underused due to the limited availability or unfavorable properties of fluorinated tracers. Herein, we report a straightforward synthetic route to highly fluorinated 19F MRI nanotracers via aqueous dispersion polymerization-induced self-assembly of a water-soluble fluorinated monomer. A polyethylene glycol-based macromolecular chain-transfer agent was extended by RAFT-mediated N-(2,2,2-trifluoroethyl)acrylamide (TFEAM) polymerization in water, providing fluorine-rich self-assembled nanoparticles in a single step. The resulting nanoparticles had different morphologies and sizes ranging from 60 to 220 nm. After optimizing their structure to maximize the magnetic relaxation of the fluorinated core, we obtained a strong 19F NMR/MRI signal in an aqueous environment. Their non-toxicity was confirmed on primary human dermal fibroblasts. Moreover, we visualized the nanoparticles by 19F MRI, both in vitro (in aqueous phantoms) and in vivo (after subcutaneous injection in mice), thus confirming their biomedical potential.
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Affiliation(s)
- Vyshakh
M. Panakkal
- Department
of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague 2 128 40, Czech Republic
| | - Dominik Havlicek
- Department
of Diagnostic and Interventional Radiology, Institute for Clinical and Experimental Medicine, Prague 140 21, Czech Republic
- Faculty
of Health Studies, Technical University
of Liberec, Studentská
1402/2, Liberec 461 17, Czech Republic
| | - Ewa Pavlova
- Institute
of Macromolecular Chemistry, AS CR, Prague 6 162 06, Czech
Republic
| | - Marcela Filipová
- Institute
of Macromolecular Chemistry, AS CR, Prague 6 162 06, Czech
Republic
| | - Semira Bener
- Department
of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague 2 128 40, Czech Republic
| | - Daniel Jirak
- Department
of Diagnostic and Interventional Radiology, Institute for Clinical and Experimental Medicine, Prague 140 21, Czech Republic
- Faculty
of Health Studies, Technical University
of Liberec, Studentská
1402/2, Liberec 461 17, Czech Republic
| | - Ondrej Sedlacek
- Department
of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague 2 128 40, Czech Republic
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17
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Morand S, Lecroq W, Jubault P, Lakhdar S, Bouillon JP, Couve-Bonnaire S. Organophotocatalysis Enables the Synthesis of gem-Fluorophosphonate Alkenes. Org Lett 2022; 24:8343-8347. [DOI: 10.1021/acs.orglett.2c03366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Solène Morand
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - William Lecroq
- Normandie Université, LCMT, ENSICAEN, UNICAEN, CNRS, 6 Boulevard Maréchal Juin, 14000 Caen, France
| | - Philippe Jubault
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Sami Lakhdar
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| | | | - Samuel Couve-Bonnaire
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
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18
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Jung A, Řeha D, Minofar B, Stanovský P, Pasichnyk M, Přibyl M, Bara JE, Friess K, Fíla V, Izák P. Molecular simulation of poly(VDF-HFP) copolymer with imidazolium-based ionic liquid as an effective medium for biogas separation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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19
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Yajima T. Visible-light-induced Organocatalytic Perfluoroalkylation of Electron-rich Olefins. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.1028] [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]
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20
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Recent advances in surface modification of plasma electrolytic oxidation coatings treated by non-biodegradable polymers. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Guerrero-Vaca G, Rodríguez-Alabanda O. Analysis of Wear Phenomena Produced by Erosion with Abrasive Particles against Fluoropolymeric Coatings. Polymers (Basel) 2022; 14:4617. [PMID: 36365612 PMCID: PMC9654691 DOI: 10.3390/polym14214617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/18/2022] [Accepted: 10/28/2022] [Indexed: 09/10/2023] Open
Abstract
To date, PTFE, PFA, and FEP-based fluoropolymer coatings have proven unbeatable in many services due to their excellent chemical inertness, very low wettability, thermal resistance, high non-stick properties, and good applicability. In use, these coatings usually suffer service cycles with consequent deterioration, and it is of great interest to determine the intensity and type of wear caused in addition to the deterioration that occurs in their properties. In this work, the response of three polymeric coatings of interest applied to aluminum substrates, after being subjected to the action of abrasive particles of aluminum corundum, glass, and plastic projected under pressure, has been studied. During the application of a given wear cycle, the hardness, surface roughness, surface texture, and thickness of the coating have been measured, in addition to the slip angle and surface transmittance to analyze the evolution of each type of coating. The results allowed a concise evaluation of the performance of three fluoropolymeric coatings of great interest, differentiating the induced erosive wear phenomena and contributing complete information to facilitate the correct selection for users with practical application purposes and as a basis for future research work focused on advancements in this field.
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Affiliation(s)
| | - Oscar Rodríguez-Alabanda
- Department of Mechanics, University of Córdoba, Rabanales Campus, Leonardo da Vinci Building, Madrid-Cádiz Road, km 396, E-14071 Córdoba, Spain
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22
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Shigenaga S, Shibata H, Tagami K, Kanbara T, Yajima T. Eosin Y-Catalyzed Visible-Light-Induced Hydroperfluoroalkylation of Electron-Deficient Alkenes. J Org Chem 2022; 87:14923-14929. [PMID: 36200531 DOI: 10.1021/acs.joc.2c01827] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The eosin Y-catalyzed hydroperfluoroalkylation of electron-deficient alkenes is described herein. The reaction proceeded smoothly under visible light irradiation and selectively afforded a hydroperfluoroalkylated product. Various perfluoroalkyl bromides and electron-deficient olefins can be used in this reaction, and all chemicals required for this reaction are safe and readily available.
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Affiliation(s)
- Satsuki Shigenaga
- Department of Chemistry, Ochanomizu University, 2-1-1, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Haruko Shibata
- Department of Chemistry, Ochanomizu University, 2-1-1, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Koto Tagami
- Department of Chemistry, Ochanomizu University, 2-1-1, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Tadashi Kanbara
- Department of Chemistry, Ochanomizu University, 2-1-1, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Tomoko Yajima
- Department of Chemistry, Ochanomizu University, 2-1-1, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
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23
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Wang J, Cheng J, Tu K, Wang Y, Yu Q, Zhang L, Cheng Z. Fluorinated reversed micelles by polymerization-induced self-assembly with main-chain-type semifluorinated alternating copolymer. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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24
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Battye NJ, Patch DJ, Roberts DMD, O'Connor NM, Turner LP, Kueper BH, Hulley ME, Weber KP. Use of a horizontal ball mill to remediate per- and polyfluoroalkyl substances in soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155506. [PMID: 35483472 DOI: 10.1016/j.scitotenv.2022.155506] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
There is a need for destructive technologies for per- and polyfluoroalkyl substances (PFAS) in soil. While planetary ball mill have been shown successful degradation of PFAS, there are issues surrounding scale up (maximum size is typically 0.5 L cylinders). While having lower energy outputs, horizontal ball mills, for which scale up is not a limiting factor, already exist at commercial/industrial sizes from the mining, metallurgic and agricultural industries, which could be re-purposed. This study evaluated the effectiveness of horizontal ball mills in degrading perfluorooctanesulfonate (PFOS), 6:2 fluorotelomer sulfonate (6:2 FTSA), and aqueous film forming foam (AFFF) spiked on nepheline syenite sand. Horizontal ball milling was also applied to two different soil types (sand dominant and clay dominant) collected from a firefighting training area (FFTA). Liquid chromatography tandem mass spectrometry was used to track 21 target PFAS throughout the milling process. High-resolution accurate mass spectrometry was also used to identify the presence and degradation of 19 non-target fluorotelomer substances, including 6:2 fluorotelomer sulfonamido betaine (FtSaB), 7:3 fluorotelomer betaine (FtB), and 6:2 fluorotelomer thioether amido sulfonate (FtTAoS). In the presence of potassium hydroxide (KOH), used as a co-milling reagent, PFOS, 6:2 FTSA, and the non-target fluorotelomer substances in the AFFF were found to undergo upwards of 81%, 97%, and 100% degradation, respectively. Despite the inherent added complexity associated with field soils, better PFAS degradation was observed on the FFTA soils over the spiked NSS, and more specifically, on the FFTA clay over the FFTA sand. These results held through scale-up, going from the 1 L to the 25 L cylinders. The results of this study support further scale-up in preparation for on-site pilot tests.
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Affiliation(s)
- Nicholas J Battye
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON, Canada
| | - David J Patch
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON, Canada
| | - Dylan M D Roberts
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON, Canada
| | - Natalia M O'Connor
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON, Canada
| | - Lauren P Turner
- Department of Civil Engineering, Queen's University, Kingston, ON, Canada
| | - Bernard H Kueper
- Department of Civil Engineering, Queen's University, Kingston, ON, Canada
| | - Michael E Hulley
- Environmental Sciences Group, Department of Civil Engineering, Royal Military College of Canada, Kingston, ON, Canada
| | - Kela P Weber
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON, Canada; Department of Civil Engineering, Queen's University, Kingston, ON, Canada.
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25
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Gong H, Ji Q, Cheng Y, Xiong J, Zhang M, Zhang Z. Controllable synthesis and structural design of novel all-organic polymers toward high energy storage dielectrics. Front Chem 2022; 10:979926. [PMID: 36059883 PMCID: PMC9428677 DOI: 10.3389/fchem.2022.979926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 07/20/2022] [Indexed: 11/13/2022] Open
Abstract
As the core unit of energy storage equipment, high voltage pulse capacitor plays an indispensable role in the field of electric power system and electromagnetic energy related equipment. The mostly utilized polymer materials are metallized polymer thin films, which are represented by biaxially oriented polypropylene (BOPP) films, possessing the advantages including low cost, high breakdown strength, excellent processing ability, and self-healing performance. However, the low dielectric constant (εr < 3) of traditional BOPP films makes it impossible to meet the demand for increased high energy density. Controlled/living radical polymerization (CRP) and related techniques have become a powerful approach to tailor the chemical and physical properties of materials and have given rise to great advances in tuning the properties of polymer dielectrics. Although organic-inorganic composite dielectrics have received much attention in previous studies, all-organic polymer dielectrics have been proven to be the most promising choice because of its light weight and easy large-scale continuous processing. In this short review, we begin with some basic theory of polymer dielectrics and some theoretical considerations for the rational design of dielectric polymers with high performance. In the guidance of these theoretical considerations, we review recent progress toward all-organic polymer dielectrics based on two major approaches, one is to control the polymer chain structure, containing microscopic main-chain and side-chain structures, by the method of CRP and the other is macroscopic structure design of all-organic polymer dielectric films. And various chemistry and compositions are discussed within each approach.
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Affiliation(s)
- Honghong Gong
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Xi’an Jiaotong University Suzhou Academy, Suzhou, Jiangsu, China
| | - Qinglong Ji
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Yipin Cheng
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Xi’an Jiaotong University Suzhou Academy, Suzhou, Jiangsu, China
| | - Jie Xiong
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Meirong Zhang
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Zhicheng Zhang
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- *Correspondence: Zhicheng Zhang,
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26
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Langtry AE, Thompson KB, Redeker ND, Quintana AS, Bui DL, Greeson KT, Cena N, Marcischak JC, M. J. Moore L, Ghiassi KB. Fluorinated phosphonium salts and ionic liquids prepared via thiol-ene click chemistry: a physical and thermal property study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Huang X, Besset T, Jubault P, Couve-Bonnaire S. Phospha-Michael Addition on α-Fluorinated Acrylates: A Straightforward Access to Polyfunctionalized Fine Chemicals. J Org Chem 2022; 87:9210-9221. [PMID: 35749447 DOI: 10.1021/acs.joc.2c00937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
α-Fluorinated acrylates could act as Michael acceptors and become a platform toward the synthesis of relevant complex molecules. Very few conjugate additions have been developed in the literature with these specific substrates, and herein, we reported the first phospha-Michael addition (PMA) on α-trifluoromethylacrylates and α-fluoromethylacrylates. The reaction proved to be highly tolerant and gave original products containing contiguous C-P and C-CFY2 (Y = F or H) bonds in good to excellent yields and diastereoselectivities.
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Affiliation(s)
- Xin Huang
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Philippe Jubault
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
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28
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Kianfar P, Bongiovanni R, Ameduri B, Vitale A. Electrospinning of Fluorinated Polymers: Current State of the Art on Processes and Applications. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2067868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Parnian Kianfar
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
| | - Roberta Bongiovanni
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
| | - Bruno Ameduri
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Alessandra Vitale
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
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29
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Song T, Gao Y, Song M, Qian J, Zhang H, Zhou J, Ding Y. Fluoropolymers-mediated efficient biomacromolecule drug delivery. MEDICINE IN DRUG DISCOVERY 2022. [DOI: 10.1016/j.medidd.2022.100123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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30
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Narrowing feedstock exemptions under the Montreal Protocol has multiple environmental benefits. Proc Natl Acad Sci U S A 2021; 118:2022668118. [PMID: 34845018 PMCID: PMC8665836 DOI: 10.1073/pnas.2022668118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The Montreal Protocol on Substances that Deplete the Ozone Layer (Montreal Protocol) can be further strengthened to control ozone-depleting substances and hydrofluorocarbons used as feedstocks to provide additional protection of the stratospheric ozone layer and the climate system while also mitigating plastics pollution. The feedstock exemptions were premised on the assumption that feedstocks presented an insignificant threat to the environment; experience has shown that this is incorrect. Through its adjustment procedures, the Montreal Protocol can narrow the scope of feedstock exemptions to reduce inadvertent and unauthorized emissions while continuing to exempt production of feedstocks for time-limited, essential uses. This upstream approach can be an effective and efficient complement to other efforts to reduce plastic pollution. Existing mechanisms in the Montreal Protocol such as the Assessment Panels and national implementation strategies can guide the choice of environmentally superior substitutes for feedstock-derived plastics. This paper provides a framework for policy makers, industries, and civil society to consider how stronger actions under the Montreal Protocol can complement other chemical and environmental treaties.
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31
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Nouaille A, Lorkowski J, Pannecoucke X, Mauduit M, Poisson T, Couve-Bonnaire S. Metal-Catalyzed Metathesis of Fluorinated Alkenes: Still a Current Major Challenge. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Augustin Nouaille
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Jan Lorkowski
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France
| | - Xavier Pannecoucke
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Marc Mauduit
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France
| | - Thomas Poisson
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
- Institut Universitaire de France, 1, rue Descartes 75231 Paris, France
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32
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Xiao P, Pannecoucke X, Bouillon J, Couve‐Bonnaire S. Palladium‐Catalysed Oxidative Decarboxylative Cross‐Coupling of Heteroarenes with CF
3
‐Acrylic Acids. ChemistrySelect 2021. [DOI: 10.1002/slct.202102425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pan Xiao
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014) 76000 Rouen France
| | - Xavier Pannecoucke
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014) 76000 Rouen France
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33
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Yan X, Han Y, Yin T. Synthesis of Urea-Formaldehyde Microcapsule Containing Fluororesin and Its Effect on Performances of Waterborne Coatings on Wood Surface. Polymers (Basel) 2021; 13:polym13111674. [PMID: 34063997 PMCID: PMC8196724 DOI: 10.3390/polym13111674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 11/16/2022] Open
Abstract
In order to self-repair the cracks of waterborne coatings on Basswood at room temperature, with fluororesin and waterborne coatings embedded in the shell structure of urea formaldehyde (UF) resin, the microcapsules were fabricated via in-situ polymerization, and the effect of microcapsules on the chroma, gloss, mechanics and repair effect for waterborne coatings on wood was discussed. The results indicated that the coating effect was the most significant when the ratio value of the core materials to the shell material of microcapsules in mass was 0.75, and the agglomeration of particles was the least and the surface was the smoothest when the content of microcapsules was 1.0%. It was negative between the gloss of the film and microcapsule content. The ratio value of the core materials to the shell material in mass and the amount of microcapsules had great influence on the film hardness and adhesion, but had little effect on the impact resistance. When the ratio value of the core materials to the shell material of microcapsules in mass was 0.65 and the addition amount was 4.0-10.0%, the aging resistance of the film was improved most significantly. When the ratio value of the core materials to the shell material of microcapsules in mass was 0.65 and the addition amount was 7.0%, the overall properties of topcoat film on Basswood board was the most significant. It is for the application of fluororesin microcapsules possessing self-repairing effect in waterborne coating on Basswood board that a technical groundwork is provided by this study.
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Affiliation(s)
- Xiaoxing Yan
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China; (Y.H.); (T.Y.)
- Correspondence: ; Tel.: +86-25-8542-7528
| | - Yan Han
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China; (Y.H.); (T.Y.)
| | - Taiyu Yin
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China; (Y.H.); (T.Y.)
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Trusiano G, Vitale A, Pulfer J, Newton J, Joly-Duhamel C, Friesen CM, Bongiovanni R. Novel perfluoropolyalkylethers monomers: synthesis and photo-induced cationic polymerization. Colloid Polym Sci 2021; 299:1173-1188. [PMID: 34720334 PMCID: PMC8550325 DOI: 10.1007/s00396-021-04838-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/31/2021] [Accepted: 04/09/2021] [Indexed: 11/29/2022]
Abstract
Several difunctional oligomers were synthesized by functionalizing perfluoropolyalkylether (PFPAE) chains with different vinyl ethers and epoxides end-groups. Due to their innate synthetic challenges and demanding purification protocols, the PFPAE derivatives were obtained in low yield and with an average functionality lower than 2. However, the functionalized PFPAE oligomers were successful in being used in photo-induced cationic polymerization processes, obtaining transparent and soft films. The influences of the fluorinated chains, and various end-groups on the photopolymerization process were investigated, as well their chemical stability, thermal degradation, and surface properties. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s00396-021-04838-1.
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Affiliation(s)
- Giuseppe Trusiano
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Alessandra Vitale
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Jason Pulfer
- Department of Chemistry, Trinity Western University, 22500 University Drive, Langley City, BC V2Y 1Y1 Canada
| | - Josiah Newton
- Department of Chemistry, Trinity Western University, 22500 University Drive, Langley City, BC V2Y 1Y1 Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6 Canada
| | - Christine Joly-Duhamel
- University of Montpellier, Institut Charles Gerhardt Montpellier, CNRS, ENSCM, Cedex 5, 34095 Montpellier, France
| | - Chadron M. Friesen
- Department of Chemistry, Trinity Western University, 22500 University Drive, Langley City, BC V2Y 1Y1 Canada
| | - Roberta Bongiovanni
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
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35
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Kurioka T, Inagi S. Electricity-Driven Post-Functionalization of Conducting Polymers. CHEM REC 2021; 21:2107-2119. [PMID: 33835681 DOI: 10.1002/tcr.202100052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 11/11/2022]
Abstract
Electrochemical doping of conducting polymers (CPs) generates polarons (radical ionic species) and bipolarons (ionic species) in their backbone via multi-electron transfer between an electrode and the CP. In the electrochemical polymer reaction (ePR), these generated ionic species are regarded as reactive intermediates for further transformation of the chemical structures of CPs. This electrochemical post-functionalization can easily be used to control the degree of reactions by turning a power supply on/off, as well as tuning the applied electrode potential, which leads to fine-tuning of the various properties of the CPs, such as the HOMO/LUMO level and PL properties. This Account summarizes recent developments in the electrochemical post-functionalization of CPs. In particular, we focus on reaction design for the ePR, with respect to the preparation and structure of the precursor polymers, applicable functional groups, efficient reaction conditions, and electrolytic methodologies.
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Affiliation(s)
- Tomoyuki Kurioka
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8502, Japan
| | - Shinsuke Inagi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8502, Japan.,PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama, 332-0012, Japan
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36
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Nouaille A, Pannecoucke X, Poisson T, Couve‐Bonnaire S. Access to Trisubstituted Fluoroalkenes by Ruthenium‐Catalyzed Cross‐Metathesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Augustin Nouaille
- Normandie Univ INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014) 76000 Rouen France
| | - Xavier Pannecoucke
- Normandie Univ INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014) 76000 Rouen France
| | - Thomas Poisson
- Normandie Univ INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014) 76000 Rouen France
- Institut Universitaire de France 1 rue Descartes 75231 Paris France
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37
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Kredel J, Schmitt D, Schäfer JL, Biesalski M, Gallei M. Cross-Linking Strategies for Fluorine-Containing Polymer Coatings for Durable Resistant Water- and Oil-Repellency. Polymers (Basel) 2021; 13:polym13050723. [PMID: 33673433 PMCID: PMC7956606 DOI: 10.3390/polym13050723] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 02/23/2021] [Accepted: 02/23/2021] [Indexed: 11/16/2022] Open
Abstract
Functional coatings for application on surfaces are of growing interest. Especially in the textile industry, durable water and oil repellent finishes are of special demand for implementation in the outdoor sector, but also as safety-protection clothes against oil or chemicals. Such oil and chemical repellent textiles can be achieved by coating surfaces with fluoropolymers. As many concerns exist regarding (per)fluorinated polymers due to their high persistence and accumulation capacity in the environment, a durable and resistant coating is essential also during the washing processes of textiles. Within the present study, different strategies are examined for a durable resistant cross-linking of a novel fluoropolymer on the surface of fibers. The monomer 2-((1,1,2-trifluoro-2-(perfluoropropoxy)ethyl)thio)ethyl acrylate, whose fluorinated side-chain is degradable by treatment with ozone, was used for this purpose. The polymers were synthesized via free radical polymerization in emulsion, and different amounts of cross-linking reagents were copolymerized. The final polymer dispersions were applied to cellulose fibers and the cross-linking was induced thermally or by irradiation with UV-light. In order to investigate the cross-linking efficiency, tensile elongation studies were carried out. In addition, multiple washing processes of the fibers were performed and the polymer loss during washing, as well as the effects on oil and water repellency were investigated. The cross-linking strategy paves the way to a durable fluoropolymer-based functional coating and the polymers are expected to provide a promising and sustainable alternative to functional coatings.
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Affiliation(s)
- Julia Kredel
- Polymer Chemistry, Universität des Saarlandes, Campus Saarbrücken, 66123 Saarbrücken, Germany; (J.K.); (D.S.)
- Ernst-Berl Institute of Technical and Macromolecular Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany; (J.-L.S.); (M.B.)
| | - Deborah Schmitt
- Polymer Chemistry, Universität des Saarlandes, Campus Saarbrücken, 66123 Saarbrücken, Germany; (J.K.); (D.S.)
| | - Jan-Lukas Schäfer
- Ernst-Berl Institute of Technical and Macromolecular Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany; (J.-L.S.); (M.B.)
| | - Markus Biesalski
- Ernst-Berl Institute of Technical and Macromolecular Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany; (J.-L.S.); (M.B.)
| | - Markus Gallei
- Polymer Chemistry, Universität des Saarlandes, Campus Saarbrücken, 66123 Saarbrücken, Germany; (J.K.); (D.S.)
- Correspondence:
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38
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Kumar T, Yang Y, Sghaier S, Zaid Y, Le Goff XF, Rousset E, Massicot F, Harakat D, Martinez A, Taillefer M, Maron L, Behr J, Jaroschik F. Tuning the Regioselective Functionalization of Trifluoromethylated Dienes via Lanthanum‐Mediated Single C−F Bond Activation. Chemistry 2021; 27:4016-4021. [DOI: 10.1002/chem.202005239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Indexed: 01/13/2023]
Affiliation(s)
- Tarun Kumar
- ICGM Univ. Montpellier, CNRS, ENSCM 34090 Montpellier France
- ICMR, UMR 7312 Université de Reims Champagne Ardenne, CNRS 51097 Reims France
| | - Yan Yang
- LPCNO Université de Toulouse, UPS, INSA, CNRS 135 avenue de Rangueil 31077 Toulouse France
| | - Sirine Sghaier
- ICGM Univ. Montpellier, CNRS, ENSCM 34090 Montpellier France
| | - Yassir Zaid
- ICGM Univ. Montpellier, CNRS, ENSCM 34090 Montpellier France
| | - Xavier F. Le Goff
- ICSM Univ. Montpellier, CEA, CNRS, ENSCM 30207 Bagnols-sur-Cèze France
| | - Elodie Rousset
- ICMR, UMR 7312 Université de Reims Champagne Ardenne, CNRS 51097 Reims France
| | - Fabien Massicot
- ICMR, UMR 7312 Université de Reims Champagne Ardenne, CNRS 51097 Reims France
| | - Dominique Harakat
- ICMR, UMR 7312 Université de Reims Champagne Ardenne, CNRS 51097 Reims France
| | - Agathe Martinez
- ICMR, UMR 7312 Université de Reims Champagne Ardenne, CNRS 51097 Reims France
| | - Marc Taillefer
- ICGM Univ. Montpellier, CNRS, ENSCM 34090 Montpellier France
| | - Laurent Maron
- LPCNO Université de Toulouse, UPS, INSA, CNRS 135 avenue de Rangueil 31077 Toulouse France
| | - Jean‐Bernard Behr
- ICMR, UMR 7312 Université de Reims Champagne Ardenne, CNRS 51097 Reims France
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Yang X, Cui M, Zhou J, Zhang L, Zhou H, Luo Z, Zhou L, Hu H. Surface Fluorination Modification and Anti-Biofouling Study of a pHEMA Hydrogel. ACS APPLIED BIO MATERIALS 2021; 4:523-532. [PMID: 35014303 DOI: 10.1021/acsabm.0c01071] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A poly(2-hydroxyethyl methacrylate) (pHEMA) hydrogel film was prepared by bulk polymerization. Then, it was surface modified by perfluorooctanoyl chloride to improve the anti-biofouling properties. Attenuated total reflectance-Fourier transform infrared (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDXS), and atomic force microscopy (AFM) analyses demonstrated that the uniform dense fluorinated layer had been successfully grafted onto pHEMA. The water contact angle (WCA) of the modified pHEMA film increased to 135°, while the surface energy decreased to 13.32 mN/m. The protein and bacterial adhesion properties of the modified pHEMA were decreased significantly. The in vitro cytotoxicity showed that the modified pHEMA was noncytotoxic. Thus, the fluorinated modification on the material surface was a convenient and effective method to establish a hydrophobic and anti-biofouling surface.
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Affiliation(s)
- Xinlin Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Mengmeng Cui
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jinsheng Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Lu Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Haohao Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zhongkuan Luo
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Li Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Huiyuan Hu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
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40
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Eid N, Améduri B, Gimello O, Bonnet A, Devisme S. Vinylidene fluoride polymerization by metal-free selective activation of hydrogen peroxide: microstructure determination and mechanistic study. Polym Chem 2021. [DOI: 10.1039/d0py01625j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Hydrogen peroxide-initiated radical polymerization of vinylidene fluoride (VDF) at 130 °C in dimethyl carbonate is presented.
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Affiliation(s)
- Nadim Eid
- Institut Charles Gerhardt
- ICGM
- Univ. Montpellier
- CNRS
- ENSCM
| | - Bruno Améduri
- Institut Charles Gerhardt
- ICGM
- Univ. Montpellier
- CNRS
- ENSCM
| | | | - Anthony Bonnet
- Centre de Recherche Rhône-Alpes (CRRA)
- 69491 Pierre-Bénite Cedex
- France
| | - Samuel Devisme
- Centre de Recherche Rhône-Alpes (CRRA)
- 69491 Pierre-Bénite Cedex
- France
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41
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Liu L, Ran LY, Gu Y, Zhang CP. Facile synthesis of selenocarbamyl fluorides, selenoureas and their derivatives with [Me4N][SeCF3]. Org Chem Front 2021. [DOI: 10.1039/d1qo00736j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[Me4N][SeCF3] has proved to be an excellent precursor of Se=CF2 for amines in the preparation of selenocarbamoyl fluorides, selenoureas, and their derivatives under catalyst- and additive-free conditions, which are otherwise difficult to synthesize by other methods.
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Affiliation(s)
- Lei Liu
- School of Materials Science and Engineering & School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Long-Yu Ran
- School of Materials Science and Engineering & School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Yucheng Gu
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG426EY, UK
| | - Cheng-Pan Zhang
- School of Materials Science and Engineering & School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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42
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Abstract
Synthesis of semifluorinated polymers containing fluorous groups on the backbone or as side chains is an increasingly popular field of research.
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Affiliation(s)
- Joseph A. Jaye
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
| | - Ellen M. Sletten
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
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43
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Claraz A, Djian A, Masson G. Electrochemical tandem trifluoromethylation of allylamines/formal (3 + 2)-cycloaddition for the rapid access to CF3-containing imidazolines and oxazolidines. Org Chem Front 2021. [DOI: 10.1039/d0qo01307b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A straightforward and environmentally friendly synthesis of CF3-containing imidazolines and oxazolidines has been developed through an electrochemical three-component reaction among allylamines, the Langlois reagent, and nitrile or carbonyl compounds.
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Affiliation(s)
- Aurélie Claraz
- Institut de Chimie des Substances Naturelles
- Université Paris Saclay
- CNRS
- UPR2301
- 91198 Gif-sur-Yvette cedex
| | - Aurélie Djian
- Institut de Chimie des Substances Naturelles
- Université Paris Saclay
- CNRS
- UPR2301
- 91198 Gif-sur-Yvette cedex
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles
- Université Paris Saclay
- CNRS
- UPR2301
- 91198 Gif-sur-Yvette cedex
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44
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Wang S, Zhang S, Feng C, Lu G, Theato P, Huang X. Modification of polybutadiene with trifluoromethyl and clickable azide groups in one shot. Polym Chem 2021. [DOI: 10.1039/d1py01016f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report copper-catalyzed intermolecular azide-trifluoromethylation of the alkenyls of PB without any chain degradation and crosslinking.
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Affiliation(s)
- Shengfei Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China
| | - Sen Zhang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China
| | - Patrick Theato
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesser Str. 18, D-76131 Karlsruhe, Germany
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces III, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China
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45
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Lv J, Cheng Y. Fluoropolymers in biomedical applications: state-of-the-art and future perspectives. Chem Soc Rev 2021; 50:5435-5467. [DOI: 10.1039/d0cs00258e] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Biomedical applications of fluoropolymers in gene delivery, protein delivery, drug delivery, 19F MRI, PDT, anti-fouling, anti-bacterial, cell culture, and tissue engineering.
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Affiliation(s)
- Jia Lv
- Shanghai Key Laboratory of Regulatory Biology
- School of Life Sciences
- East China Normal University
- Shanghai
- China
| | - Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology
- School of Life Sciences
- East China Normal University
- Shanghai
- China
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46
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Glüge J, Scheringer M, Cousins IT, DeWitt JC, Goldenman G, Herzke D, Lohmann R, Ng CA, Trier X, Wang Z. An overview of the uses of per- and polyfluoroalkyl substances (PFAS). ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020. [PMID: 33125022 DOI: 10.31224/osf.io/2eqac] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are of concern because of their high persistence (or that of their degradation products) and their impacts on human and environmental health that are known or can be deduced from some well-studied PFAS. Currently, many different PFAS (on the order of several thousands) are used in a wide range of applications, and there is no comprehensive source of information on the many individual substances and their functions in different applications. Here we provide a broad overview of many use categories where PFAS have been employed and for which function; we also specify which PFAS have been used and discuss the magnitude of the uses. Despite being non-exhaustive, our study clearly demonstrates that PFAS are used in almost all industry branches and many consumer products. In total, more than 200 use categories and subcategories are identified for more than 1400 individual PFAS. In addition to well-known categories such as textile impregnation, fire-fighting foam, and electroplating, the identified use categories also include many categories not described in the scientific literature, including PFAS in ammunition, climbing ropes, guitar strings, artificial turf, and soil remediation. We further discuss several use categories that may be prioritised for finding PFAS-free alternatives. Besides the detailed description of use categories, the present study also provides a list of the identified PFAS per use category, including their exact masses for future analytical studies aiming to identify additional PFAS.
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Affiliation(s)
- Juliane Glüge
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland.
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47
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Glüge J, Scheringer M, Cousins IT, DeWitt JC, Goldenman G, Herzke D, Lohmann R, Ng CA, Trier X, Wang Z. An overview of the uses of per- and polyfluoroalkyl substances (PFAS). ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:2345-2373. [PMID: 33125022 PMCID: PMC7784712 DOI: 10.1039/d0em00291g] [Citation(s) in RCA: 530] [Impact Index Per Article: 132.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are of concern because of their high persistence (or that of their degradation products) and their impacts on human and environmental health that are known or can be deduced from some well-studied PFAS. Currently, many different PFAS (on the order of several thousands) are used in a wide range of applications, and there is no comprehensive source of information on the many individual substances and their functions in different applications. Here we provide a broad overview of many use categories where PFAS have been employed and for which function; we also specify which PFAS have been used and discuss the magnitude of the uses. Despite being non-exhaustive, our study clearly demonstrates that PFAS are used in almost all industry branches and many consumer products. In total, more than 200 use categories and subcategories are identified for more than 1400 individual PFAS. In addition to well-known categories such as textile impregnation, fire-fighting foam, and electroplating, the identified use categories also include many categories not described in the scientific literature, including PFAS in ammunition, climbing ropes, guitar strings, artificial turf, and soil remediation. We further discuss several use categories that may be prioritised for finding PFAS-free alternatives. Besides the detailed description of use categories, the present study also provides a list of the identified PFAS per use category, including their exact masses for future analytical studies aiming to identify additional PFAS.
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Affiliation(s)
- Juliane Glüge
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland.
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48
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Reversible-deactivation radical polymerization (Controlled/living radical polymerization): From discovery to materials design and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101311] [Citation(s) in RCA: 302] [Impact Index Per Article: 75.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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49
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50
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Jiang ZY, Zhang YF, Gong CJ, Yao Z, Shukla A, Cao K. Foaming behavior of the fluorinated ethylene propylene copolymer assisted with supercritical carbon dioxide. J CELL PLAST 2020. [DOI: 10.1177/0021955x20964003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Foaming behavior of the fluorinated ethylene propylene copolymer (FEP) and its composites assisted with supercritical carbon dioxide (scCO2) as the blowing agent were investigated. The batch foaming process was applied at temperature ranging from 250°C to 265°C and pressure ranging between 12 MPa and 24 MPa. The optimal foaming temperature and saturation pressure were obtained for both pure FEP and FEP composites with 1 wt% different-sized BaTiO3 as nucleating agent. The cell diameter of pure FEP foam ranging from 80–140 µm was observed while the cell diameter decreased to 20–40 µm after adding BaTiO3 particles. The cell density of foamed FEP with BaTiO3 increased significantly from 106 to 108 cells/cm3 and the expansion ratio ranged between 4.0 and 5.5. Moreover, a decrease in an abnormal phenomenon that expansion ratio for the pure FEP foam was observed as the saturation pressure increased. This unexpected phenomenon can be explained by the relationship between foaming and crystallization coupling processes.
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Affiliation(s)
- Zi-yin Jiang
- State Key Laboratory of Chemical Engineering, Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University
| | - Yun-fei Zhang
- State Key Laboratory of Chemical Engineering, Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University
| | - Chang-jing Gong
- State Key Laboratory of Chemical Engineering, Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University
| | - Zhen Yao
- State Key Laboratory of Chemical Engineering, Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University
| | - Abhinaya Shukla
- State Key Laboratory of Chemical Engineering, Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University
| | - Kun Cao
- State Key Laboratory of Chemical Engineering, Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University
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