1
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Takahashi Y, Chan K, Zinchenko A. Multi-color polymer carbon dots synthesized from waste polyolefins through phenylenediamine-assisted hydrothermal processing. CHEMOSPHERE 2024; 354:141685. [PMID: 38513957 DOI: 10.1016/j.chemosphere.2024.141685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/28/2024] [Accepted: 03/09/2024] [Indexed: 03/23/2024]
Abstract
The large accumulation and low recycling rates of polyolefin waste have posed a threat to the environment and human health. The shortage of chemical recycling methods for polyolefins strongly demands the development of new and sustainable treatment technologies for hydrocarbon plastics to improve their waste management. In this study, polyethylene (PE) and polypropylene (PP) were utilized for the preparation of multi-color polymer carbon dots (PCDs) via a two-step hydrothermal (HT) synthesis involving (i) thermo-oxidative degradation of polyolefins to precursors containing plentiful oxygen-based functional groups, and (ii) modification with phenylenediamine (PDA). The fluorescence of PCDs depends on the structure of isomeric PDA and PCDs modified by ortho-, meta-, and para-PDA emit blue, green, and yellow color fluorescence, respectively. The formation mechanism of PCDs, involving dehydrative condensation and amination of PE or PP-derived precursors by PDA, was proposed. The obtained PCDs were utilized for the detection and quantification of Fe3+ ions at ppm concentrations. The proposed strategy here aims to broaden the scope of the chemical recycling methods for polyolefin plastic waste as well as to develop a conversion route of polyolefin to value-added materials.
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Affiliation(s)
- Yusei Takahashi
- Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
| | - Kayee Chan
- Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
| | - Anatoly Zinchenko
- Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
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2
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Neidhart EK, Hua M, Peng Z, Kearney LT, Bhat V, Vashahi F, Alexanian EJ, Sheiko SS, Wang C, Helms BA, Leibfarth FA. C-H Functionalization of Polyolefins to Access Reprocessable Polyolefin Thermosets. J Am Chem Soc 2023; 145:27450-27458. [PMID: 38079611 DOI: 10.1021/jacs.3c08682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Upcycling plastic waste into reprocessable materials with performance-advantaged properties would contribute to the development of a circular plastics economy. Here, we modify branched polyolefins and postconsumer polyethylene through a versatile C-H functionalization approach using thiosulfonates as a privileged radical group transfer functionality. Cross-linking the functionalized polyolefins with polytopic amines provided dynamically cross-linked polyolefin networks enabled by associative bond exchange of diketoenamine functionality. A combination of resonant soft X-ray scattering and grazing incidence X-ray scattering revealed hierarchical phase morphology in which diketoenamine-rich microdomains phase-separate within amorphous regions between polyolefin crystallites. The combination of dynamic covalent cross-links and microphase separation results in useful and improved mechanical properties, including a ∼4.5-fold increase in toughness, a reduction in creep deformation at temperatures relevant to use, and high-temperature structural stability compared to the parent polyolefin. The dynamic nature of diketoenamine cross-links provides stress relaxation at elevated temperatures, which enabled iterative reprocessing of the dynamic covalent polymer network with little cycle-to-cycle property fade. The ability to convert polyolefin waste into a reprocessable thermoformable material with attractive thermomechanical properties provides additional optionality for upcycling to enable future circularity.
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Affiliation(s)
- Eliza K Neidhart
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Mutian Hua
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Zhengxing Peng
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Logan T Kearney
- Chemical Science Division, Oak Ridge National Lab, Oak Ridge, Tennessee 37830, United States
| | - Vittal Bhat
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Foad Vashahi
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Erik J Alexanian
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Sergei S Sheiko
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Cheng Wang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Brett A Helms
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Frank A Leibfarth
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
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3
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Ciccia NR, Shi JX, Pal S, Hua M, Malollari KG, Lizandara-Pueyo C, Risto E, Ernst M, Helms BA, Messersmith PB, Hartwig JF. Diverse functional polyethylenes by catalytic amination. Science 2023; 381:1433-1440. [PMID: 37769088 DOI: 10.1126/science.adg6093] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 08/28/2023] [Indexed: 09/30/2023]
Abstract
Functional polyethylenes possess valuable bulk and surface properties, but the limits of current synthetic methods narrow the range of accessible materials and prevent many envisioned applications. Instead, these materials are often used in composite films that are challenging to recycle. We report a Cu-catalyzed amination of polyethylenes to form mono- and bifunctional materials containing a series of polar groups and substituents. Designed catalysts with hydrophobic moieties enable the amination of linear and branched polyethylenes without chain scission or cross-linking, leading to polyethylenes with otherwise inaccessible combinations of functional groups and architectures. The resulting materials possess tunable bulk and surface properties, including toughness, adhesion to metal, paintability, and water solubility, which could unlock applications for functional polyethylenes and reduce the need for complex composites.
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Affiliation(s)
- Nicodemo R Ciccia
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jake X Shi
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Subhajit Pal
- Departments of Materials Science and Engineering and Bioengineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Mutian Hua
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Katerina G Malollari
- Departments of Materials Science and Engineering and Bioengineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | | | - Eugen Risto
- BASF SE, 67056 Ludwigshafen am Rhein, Germany
| | | | - Brett A Helms
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Phillip B Messersmith
- Departments of Materials Science and Engineering and Bioengineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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4
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Zhang Z, Zhang Y, Zeng R. Photoinduced iron-catalyzed C-H alkylation of polyolefins. Chem Sci 2023; 14:9374-9379. [PMID: 37712034 PMCID: PMC10498505 DOI: 10.1039/d3sc03252c] [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: 06/27/2023] [Accepted: 08/03/2023] [Indexed: 09/16/2023] Open
Abstract
Chemically introducing diverse polar groups into polyolefins via carbon-hydrogen bond alkylation with polar olefins is of substantial value in the synthesis of next-generation lightweight thermoplastics, which is still underdeveloped. In this work, we report a new approach for efficient carbon-hydrogen bond alkylation in commodity polyolefins using photoinduced iron catalysis. Various polyolefins could be functionalized with broad scope. Polar groups could be incorporated in a single step. The controllable synthesis of multi-polar functional polyolefins could be achieved by a designed module-assembled process. Remarkably, even low levels of functionalization could upcycle the polyolefin materials to exhibit unusual physical properties, such as enhancement of the transparencies, strains, stresses at break of the materials, and hydrophilicity.
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Affiliation(s)
- Zongnan Zhang
- School of Chemistry, Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Yanfeng Zhang
- School of Chemistry, Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Rong Zeng
- School of Chemistry, Xi'an Jiaotong University Xi'an 710049 P. R. China
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5
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Zhang H, Zhao X, Wang X, Li Y, Wang S. Construction of Antifouling Zwitterionic Coatings on Polypropylene Microporous Membranes via N-hydroxyphthalimide(NHPI) catalysis. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.112001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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6
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Yeung CWS, Periayah MH, Teo JYQ, Goh ETL, Chee PL, Loh WW, Loh XJ, Lakshminarayanan R, Lim JYC. Transforming Polyethylene into Water-Soluble Antifungal Polymers. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c01944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Celine W. S. Yeung
- Agency for Science, Technology and Research (A*STAR), Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Mercy Halleluyah Periayah
- Singapore Eye Research Institute (SERI), The Academia, 20 College Road, Level 6 Discovery Tower, Singapore 169856, Singapore
| | - Jerald Y. Q. Teo
- Agency for Science, Technology and Research (A*STAR), Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Eunice Tze Leng Goh
- Singapore Eye Research Institute (SERI), The Academia, 20 College Road, Level 6 Discovery Tower, Singapore 169856, Singapore
| | - Pei Lin Chee
- Agency for Science, Technology and Research (A*STAR), Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Wei Wei Loh
- Agency for Science, Technology and Research (A*STAR), Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Xian Jun Loh
- Agency for Science, Technology and Research (A*STAR), Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, Singapore 138634, Singapore
- Department of Materials Science and Engineering, National University of Singapore (NUS), 9 Engineering Drive 1, Singapore 117576, Singapore
| | - Rajamani Lakshminarayanan
- Singapore Eye Research Institute (SERI), The Academia, 20 College Road, Level 6 Discovery Tower, Singapore 169856, Singapore
| | - Jason Y. C. Lim
- Agency for Science, Technology and Research (A*STAR), Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, Singapore 138634, Singapore
- Department of Materials Science and Engineering, National University of Singapore (NUS), 9 Engineering Drive 1, Singapore 117576, Singapore
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7
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Kanbur U, Paterson AL, Rodriguez J, Kocen AL, Yappert R, Hackler RA, Wang YY, Peters B, Delferro M, LaPointe AM, Coates GW, Perras F, Sadow AD. Zirconium-Catalyzed C-H Alumination of Polyolefins, Paraffins, and Methane. J Am Chem Soc 2023; 145:2901-2910. [PMID: 36696148 PMCID: PMC9912340 DOI: 10.1021/jacs.2c11056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
C-H/Et-Al exchange in zirconium-catalyzed reactions of saturated hydrocarbons and AlEt3 affords versatile organoaluminum compounds and ethane. The grafting of commercially available Zr(OtBu)4 on silica/alumina gives monopodal ≡SiO-Zr(OtBu)3 surface pre-catalyst sites that are activated in situ by ligand exchange with AlEt3. The catalytic C-H alumination of dodecane at 150 °C followed by quenching in air affords n-dodecanol as the major product, revealing selectivity for methyl group activation. Shorter hydrocarbon or alcohol products were not detected under these conditions. Catalytic reactions of cyclooctane and AlEt3, however, afford ring-opened products, indicating that C-C bond cleavage occurs readily in methyl group-free reactants. This selectivity for methyl group alumination enables the C-H alumination of polyethylenes, polypropylene, polystyrene, and poly-α-olefin oils without significant chain deconstruction. In addition, the smallest hydrocarbon, methane, undergoes selective mono-alumination under solvent-free catalytic conditions, providing a direct route to Al-Me species.
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Affiliation(s)
- Uddhav Kanbur
- Ames
National Laboratory, Iowa State University, Ames, Iowa 50011, United States,Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | | | - Jessica Rodriguez
- Ames
National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Andrew L. Kocen
- Department
of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Ryan Yappert
- Department
of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Ryan A. Hackler
- Chemical
Sciences and Engineering Division, Argonne
National Laboratory, Lemont, Illinois 60439, United States
| | - Yi-Yu Wang
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Baron Peters
- Department
of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Massimiliano Delferro
- Chemical
Sciences and Engineering Division, Argonne
National Laboratory, Lemont, Illinois 60439, United States,Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
| | - Anne M. LaPointe
- Department
of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Geoffrey W. Coates
- Department
of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Frédéric
A. Perras
- Ames
National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Aaron D. Sadow
- Ames
National Laboratory, Iowa State University, Ames, Iowa 50011, United States,Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States,
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8
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Recent progress on the tridentate iron complex catalysts for ethylene oligo-/polymerization. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2023. [DOI: 10.1016/bs.adomc.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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9
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Sample CS, Kellstedt EA, Hillmyer MA. Tandem ROMP/Hydrogenation Approach to Hydroxy-Telechelic Linear Polyethylene. ACS Macro Lett 2022; 11:608-614. [PMID: 35570818 DOI: 10.1021/acsmacrolett.2c00144] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydroxy-telechelic polyalkenamers have long been synthesized using ring-opening metathesis polymerization (ROMP) in the presence of an acyclic olefin chain-transfer agent (CTA); however, this route typically requires protected diols in the CTA due to the challenge of alcohol-mediated degradation of ruthenium metathesis catalysts that can not only deactivate the catalysts, but also compromise the CTA. We demonstrate the synthesis and implementation of a new hydroxyl-containing CTA in which extended methylene spacers isolate the olefin and alcohol moieties to mitigate decomposition pathways. This CTA enabled the direct ROMP synthesis of hydroxy-telechelic polycyclooctene with controlled chain lengths dictated by the initial ratio of monomer to CTA. The elimination of protection/deprotection steps resulted in improved atom economy. Subsequent hydrogenation of the backbone olefins was performed by a one-pot, catalytic approach employing the ruthenium complex used for the initial ROMP. The resultant approach is a streamlined, atom-economic, and low-waste route to hydroxy-telechelic linear polyethylene that uses a green solvent, succeeds with miniscule quantities of catalyst (0.005 mol %), and requires no additional purification steps.
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Affiliation(s)
- Caitlin S. Sample
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - Elizabeth A. Kellstedt
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A. Hillmyer
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
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10
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Zhang Y, Wang T, Bai J, You W. Repurposing Mitsunobu Reactions as a Generic Approach toward Polyethylene Derivatives. ACS Macro Lett 2022; 11:33-38. [PMID: 35574803 DOI: 10.1021/acsmacrolett.1c00689] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Broad scope of functionality and controllable degree of functionalization are intriguing goals for the development of polar-group-functionalized polyethylene materials. Herein, we propose a generic strategy of using widely available starting materials (i.e., poly(ethylene-co-vinyl acetate), EVA) and mild Mitsunobu functionalization conditions to prepare over 30 polyethylene derivatives. No noble transition metal catalysts (e.g., Ru, Mo, Pd, etc.) or corrosive/explosive reagents (e.g., HBr, NaN3, C2H4, H2, etc.) are used in the synthesis, while functional groups such as azide, aldehyde, norbornene, and thiol can be easily installed, with tunable content as high as 18 mol %. Using this practical method, we successfully prepared polyethylene-derivatized membranes with excellent antimicrobial and fluorescent properties.
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Affiliation(s)
- Yin Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Ting Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jing Bai
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Wei You
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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11
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Zhang Y, Li X, Zhu W, Liu P, Ren J, Chen S, Hu Y, Zhou G. A Multi-functional Chromone-modified Polyethylene via Metal-free C−H Activation. Polym Chem 2022. [DOI: 10.1039/d1py01604k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Post-modification of polyolefins via cutting-edge C−H activation has recently emerged as an attractive methodology for the incorporation of precise functionalities, thus expanding their applicability and creating value-added materials. In this...
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12
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Facile, scalable, and universal modification strategy of polyolefin utilizing noncatalytic C H insertion capability of azide: Sulfonyl azide end-functionalized polystyrene to modify polyethylene. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Chen L, Yue FS, Zhao YM, Wang SS, Li YC, Li G, Ge XC. Surface tailoring of polypropylene separators for lithium-ion batteries via N-hydroxyphthalimide catalysis. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110487] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Wang Z, Gu Y, Ma M, Liu Y, Chen M. Strengthening Polyethylene Thermoplastics through a Dynamic Covalent Networking Additive Based on Alkylboron Chemistry. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02870] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zongtao Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - Yu Gu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - Mingyu Ma
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - Yinli Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
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15
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Chen L, Wang S, Zhang Y, Li Y, Ge X, Li G, Wang L. N-Hydroxyphthalimide catalyzed hydrazination of polyethylene glycol. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Zhang Q, Wu N, Xiang J, Solan GA, Suo H, Ma Y, Liang T, Sun WH. Bis-cycloheptyl-fused bis(imino)pyridine-cobalt catalysts for PE wax formation: positive effects of fluoride substitution on catalytic performance and thermal stability. Dalton Trans 2020; 49:9425-9437. [PMID: 32589179 DOI: 10.1039/d0dt01876g] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The α,α'-bis(imino)-2,3:5,6-bis(pentamethylene)pyridyl-cobalt(ii) chlorides, [2,3:5,6-{C4H8C(N(2-R1-4-R3-6-R2C6H2))}2C5HN] CoCl2 (R1 = Me, R2 = R3 = CH(p-FPh)2Co1; R1 = Et, R2 = R3 = CH(p-FPh)2Co2; R1 = i-Pr, R2 = R3 = CH(p-FPh)2Co3; R1 = Cl, R2 = R3 = CH(p-FPh)2Co4; R1 = F, R2 = R3 = CH(p-FPh)2Co5; R1 = F, R2 = R3 = CHPh2Co5'', R1 = R2 = Me, R3 = CH(p-FPh)2Co6; R1 = R3 = Me, R2 = CH(p-FPh)2Co7), have been synthesized by a one-pot template reaction of α,α'-dioxo-2,3:5,6-bis(pentamethylene)pyridine, cobalt(ii) chloride and the respective aniline in n-butanol. By contrast, the mixed cobalt(ii) chloride/acetate complex, [2,3:5,6-{C4H8C(N(2-F-4,6-(CH(p-FPh)2)2C6H2))}2C5HN]CoCl(OAc) (Co5'), was isolated when the corresponding template reaction was carried out in acetic acid. Structural characterization of Co4, Co5 and Co5'' revealed distorted square pyramidal geometries while six-coordinate Co5', incorporating a chelating acetate ligand, exhibited a distorted octahedral geometry. On activation with either MAO or MMAO, 2-fluoride-4,6-bis{di(p-fluorophenyl)methyl}-substituted Co5 showed maximum catalytic activity for ethylene polymerization at a high operating temperature of 60 °C (up to 2.1 × 107 g (PE) mol-1 (Co) h-1), producing highly linear (Tms > 121 °C), low molecular weight polyethylene waxes (Mw range: 1.5-5.0 kg mol-1) with narrow dispersity (Mw/Mn range: 1.7-2.9). End-group analysis of the waxes reveals β-H elimination as the dominant chain transfer process.
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Affiliation(s)
- Qiuyue Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. and CAS Research/Education Center for Excellence in Molecular Sciences and International School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ningning Wu
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Junfeng Xiang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Gregory A Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. and Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK.
| | - Hongyi Suo
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. and CAS Research/Education Center for Excellence in Molecular Sciences and International School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Tongling Liang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. and CAS Research/Education Center for Excellence in Molecular Sciences and International School, University of Chinese Academy of Sciences, Beijing 100049, China and State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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17
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Plummer CM, Li L, Chen Y. The post-modification of polyolefins with emerging synthetic methods. Polym Chem 2020. [DOI: 10.1039/d0py01279c] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This Perspective highlights the present state of polyolefin post-modification research, especially concerning recently developed C–H functionalization chemistry. Remaining challenges and emerging strategies within the field have also been discussed.
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Affiliation(s)
- Christopher M. Plummer
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
| | - Le Li
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
- School of Chemistry
| | - Yongming Chen
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
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18
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Williamson JB, Na CG, Johnson RR, Daniel WFM, Alexanian EJ, Leibfarth FA. Chemo- and Regioselective Functionalization of Isotactic Polypropylene: A Mechanistic and Structure-Property Study. J Am Chem Soc 2019; 141:12815-12823. [PMID: 31373806 DOI: 10.1021/jacs.9b05799] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Polyolefins represent a high-volume class of polymers prized for their attractive thermomechanical properties, but the lack of chemical functionality on polyolefins makes them inadequate for many high-performance engineering applications. We report a metal-free postpolymerization modification approach to impart functionality onto branched polyolefins without the deleterious chain-coupling or chain-scission side reactions inherent to previous methods. The identification of conditions for thermally initiated polyolefin C-H functionalization combined with the development of new reagents enabled the addition of xanthates, trithiocarbonates, and dithiocarbamates to a variety of commercially available branched polyolefins. Systematic experimental and kinetic studies led to a mechanistic hypothesis that facilitated the rational design of reagents and reaction conditions for the thermally initiated C-H xanthylation of isotactic polypropylene (iPP) within a twin-screw extruder. A structure-property study showed that the functionalized iPP adheres to polar surfaces twice as strongly as commercial iPP while demonstrating similar tensile properties. The fundamental understanding of the elementary steps in amidyl radical-mediated polyolefin functionalization provided herein reveals key structure-reactivity relationships for the design of improved reagents, while the demonstration of chemoselective and scalable iPP functionalization to realize a material with improved adhesion properties indicates the translational potential of this method.
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Affiliation(s)
- Jill B Williamson
- Department of Chemistry , The University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Christina G Na
- Department of Chemistry , The University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Robert R Johnson
- Department of Chemistry , The University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - William F M Daniel
- Department of Applied Physical Sciences , The University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Erik J Alexanian
- Department of Chemistry , The University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Frank A Leibfarth
- Department of Chemistry , The University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
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19
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Williamson JB, Lewis SE, Johnson RR, Manning IM, Leibfarth FA. C−H Functionalization of Commodity Polymers. Angew Chem Int Ed Engl 2019; 58:8654-8668. [DOI: 10.1002/anie.201810970] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Jill B. Williamson
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Sally E. Lewis
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Robert R. Johnson
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Irene M. Manning
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Frank A. Leibfarth
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
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20
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Williamson JB, Lewis SE, Johnson RR, Manning IM, Leibfarth FA. C‐H‐Funktionalisierung von Standardpolymeren. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810970] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jill B. Williamson
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Sally E. Lewis
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Robert R. Johnson
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Irene M. Manning
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Frank A. Leibfarth
- Department of ChemistryThe University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
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21
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Zhou H, Plummer CM, Li H, Huang H, Ma P, Li L, Liu L, Chen Y. Regioselective post-functionalization of isotactic polypropylene by amination in the presence of N-hydroxyphthalimide. Polym Chem 2019. [DOI: 10.1039/c8py01344f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Previously, we developed amination modification of polyethylene by metal-free organocatalytic reaction.
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Affiliation(s)
- Houbo Zhou
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Christopher M. Plummer
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Huaan Li
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Huahua Huang
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Pengfei Ma
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Le Li
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Lixin Liu
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Yongming Chen
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
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22
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Plummer CM, Zhou H, Li S, Zhong H, Sun Z, Bariashir C, Sun WH, Huang H, Liu L, Chen Y. A direct functionalization of polyolefins for blend compatibilization by an insertion of 1,1-bis(phenylsulfonyl)ethylene (BPSE). Polym Chem 2019. [DOI: 10.1039/c9py00599d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A mild post-modification of polyethylene (PE) & polypropylene (PP) to insert phenylsulfonyl groups is reported, the modified samples demonstrated to act as blend compatibilizers.
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23
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Rakotonirina MD, Baron M, Siri D, Gaudel-Siri A, Quinebeche S, Flat JJ, Gigmes D, Cassagnau P, Beyou E, Guillaneuf Y. Acyloxyimide derivatives as efficient promoters of polyolefin C–H functionalization: application in the melt grafting of maleic anhydride onto polyethylene. Polym Chem 2019. [DOI: 10.1039/c9py00672a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acyloxyimides as a new H-abstracting agent have been developed for the radical grafting of maleic anhydride (MA) onto polyethylene in the melt state.
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Affiliation(s)
| | - Marc Baron
- Université de Lyon
- Université Lyon 1
- UMR CNRS 5223
- Ingénierie des Matériaux Polymères
- F-69622 Villeurbanne Cedex
| | - Didier Siri
- Aix-Marseille-Univ
- CNRS
- Institut de Chimie Radicalaire
- UMR 7273
- F-13397 Marseille
| | - Anouk Gaudel-Siri
- Aix-Marseille-Univ
- CNRS
- Institut de Chimie Radicalaire
- UMR 7273
- F-13397 Marseille
| | | | - Jean-Jacques Flat
- ARKEMA
- Centre d'Etude de Recherche et de Développement
- Serquigny
- France
| | - Didier Gigmes
- Aix-Marseille-Univ
- CNRS
- Institut de Chimie Radicalaire
- UMR 7273
- F-13397 Marseille
| | - Philippe Cassagnau
- Université de Lyon
- Université Lyon 1
- UMR CNRS 5223
- Ingénierie des Matériaux Polymères
- F-69622 Villeurbanne Cedex
| | - Emmanuel Beyou
- Université de Lyon
- Université Lyon 1
- UMR CNRS 5223
- Ingénierie des Matériaux Polymères
- F-69622 Villeurbanne Cedex
| | - Yohann Guillaneuf
- Aix-Marseille-Univ
- CNRS
- Institut de Chimie Radicalaire
- UMR 7273
- F-13397 Marseille
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24
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Lv A, Li ZL, Wu YH, Du FS, Li ZC. Synthesis of precision polymers with regularly placed perfluoroalkyl segments and sulfonic acid groups via ADMET polymerization and internal alkene modification. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Wang Z, Solan GA, Zhang W, Sun WH. Carbocyclic-fused N,N,N-pincer ligands as ring-strain adjustable supports for iron and cobalt catalysts in ethylene oligo-/polymerization. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.02.016] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Williamson JB, Czaplyski WL, Alexanian EJ, Leibfarth FA. Regioselective C−H Xanthylation as a Platform for Polyolefin Functionalization. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jill B. Williamson
- Department of Chemistry The University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - William L. Czaplyski
- Department of Chemistry The University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Erik J. Alexanian
- Department of Chemistry The University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Frank A. Leibfarth
- Department of Chemistry The University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
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27
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Williamson JB, Czaplyski WL, Alexanian EJ, Leibfarth FA. Regioselective C−H Xanthylation as a Platform for Polyolefin Functionalization. Angew Chem Int Ed Engl 2018; 57:6261-6265. [DOI: 10.1002/anie.201803020] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Jill B. Williamson
- Department of Chemistry The University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - William L. Czaplyski
- Department of Chemistry The University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Erik J. Alexanian
- Department of Chemistry The University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
| | - Frank A. Leibfarth
- Department of Chemistry The University of North Carolina at Chapel Hill 125 South Rd Chapel Hill NC 27599 USA
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28
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Wang Z, Solan GA, Mahmood Q, Liu Q, Ma Y, Hao X, Sun WH. Bis(imino)pyridines Incorporating Doubly Fused Eight-Membered Rings as Conformationally Flexible Supports for Cobalt Ethylene Polymerization Catalysts. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00809] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Zheng Wang
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- CAS
Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gregory A. Solan
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Department
of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
| | - Qaiser Mahmood
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- CAS
Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingbin Liu
- College
of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, China
| | - Yanping Ma
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiang Hao
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wen-Hua Sun
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- CAS
Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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29
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Plummer CM, Zhou H, Zhu W, Huang H, Liu L, Chen Y. Mild halogenation of polyolefins using an N-haloamide reagent. Polym Chem 2018. [DOI: 10.1039/c8py00013a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new methodology for the chlorination of PE and PP without the use of chlorine gas.
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Affiliation(s)
- Christopher M. Plummer
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Houbo Zhou
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Wen Zhu
- Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
- China
| | - Huahua Huang
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Lixin Liu
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Yongming Chen
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
- China
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30
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Huang C, Huang Y, Ma Y, Solan GA, Sun Y, Hu X, Sun WH. Cycloheptyl-fused N,N,N′-chromium catalysts with selectivity for vinyl-terminated polyethylene waxes: thermal optimization and polymer functionalization. Dalton Trans 2018; 47:13487-13497. [PMID: 30187076 DOI: 10.1039/c8dt03052a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Narrowly dispersed linear polyethylenes containing high levels of vinyl end-groups are accessible using cycloheptyl-fused Cr-catalysts operating at high temperature.
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Affiliation(s)
- Chuanbing Huang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yongfeng Huang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yang Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xinquan Hu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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31
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Song S, Fu Z, Xu J, Fan Z. Synthesis of functional polyolefins via ring-opening metathesis polymerization of ester-functionalized cyclopentene and its copolymerization with cyclic comonomers. Polym Chem 2017. [DOI: 10.1039/c7py01330b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Viaring-opening metathesis polymerization, functionalized polyolefins were synthesized by homopolymerization of alkoxycarbonyl cyclopentene and its copolymerizations with other cyclic olefins.
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Affiliation(s)
- Shaofei Song
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhisheng Fu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Junting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhiqiang Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
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