1
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Ghana P, Xiong S, Tekpor A, Bailey BC, Spinney HA, Henderson BS, Agapie T. Catalyst Editing via Post-Synthetic Functionalization by Phosphonium Generation and Anion Exchange for Nickel-Catalyzed Ethylene/Acrylate Copolymerization. J Am Chem Soc 2024; 146:18797-18803. [PMID: 38967615 PMCID: PMC11258788 DOI: 10.1021/jacs.4c03416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 06/10/2024] [Accepted: 06/24/2024] [Indexed: 07/06/2024]
Abstract
Rapid, efficient development of homogeneous catalysts featuring desired performance is critical to numerous catalytic transformations but remains a key challenge. Typically, this task relies heavily on ligand design that is often based on trial and error. Herein, we demonstrate a "catalyst editing" strategy in Ni-catalyzed ethylene/acrylate copolymerization. Specifically, alkylation of a pendant phosphine followed by anion exchange provides a high yield strategy for a large number of cationic Ni phosphonium catalysts with varying electronic and steric profiles. These catalysts are highly active in ethylene/acrylate copolymerization, and their behaviors are correlated with the electrophile and the anion used in late-stage functionalization.
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Affiliation(s)
- Priyabrata Ghana
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Shuoyan Xiong
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Adjeoda Tekpor
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Brad C. Bailey
- Chemical
Science, Core R&D, The Dow Chemical
Company, Midland, Michigan 48667, United States
| | - Heather A. Spinney
- Chemical
Science, Core R&D, The Dow Chemical
Company, Midland, Michigan 48667, United States
| | - Briana S. Henderson
- Chemical
Science, Core R&D, The Dow Chemical
Company, Midland, Michigan 48667, United States
| | - Theodor Agapie
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
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2
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Wang Y, Lai J, Gao R, Gou Q, Li B, Zheng G, Zhang R, Yue Q, Song Z, Guo Z. Recent Advances in Nickel Catalysts with Industrial Exploitability for Copolymerization of Ethylene with Polar Monomers. Polymers (Basel) 2024; 16:1676. [PMID: 38932025 PMCID: PMC11207433 DOI: 10.3390/polym16121676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/28/2024] Open
Abstract
The direct copolymerization of ethylene with polar monomers to produce functional polyolefins continues to be highly appealing due to its simple operation process and controllable product microstructure. Low-cost nickel catalysts have been extensively utilized in academia for the synthesis of polar polyethylenes. However, the development of high-temperature copolymerization catalysts suitable for industrial production conditions remains a significant challenge. Classified by the resultant copolymers, this review provides a comprehensive summary of the research progress in nickel complex catalyzed ethylene-polar monomer copolymerization at elevated temperatures in the past five years. The polymerization results of ethylene-methyl acrylate copolymers, ethylene-tert-butyl acrylate copolymers, ethylene-other fundamental polar monomer copolymers, and ethylene-special polar monomer copolymers are thoroughly summarized. The involved nickel catalysts include the phosphine-phenolate type, bisphosphine-monoxide type, phosphine-carbonyl type, phosphine-benzenamine type, and the phosphine-enolate type. The effective modulation of catalytic activity, molecular weight, molecular weight distribution, melting point, and polar monomer incorporation ratio by these catalysts is concluded and discussed. It reveals that the optimization of the catalyst system is mainly achieved through the methods of catalyst structure rational design, extra additive introduction, and single-site catalyst heterogenization. As a result, some outstanding catalysts are capable of producing polar polyethylenes that closely resemble commercial products. To achieve industrialization, it is essential to further emphasize the fundamental science of high-temperature copolymerization systems and the application performance of resultant polar polyethylenes.
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Affiliation(s)
- Ying Wang
- Department of Polyethylene, SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing 100013, China; (J.L.); (R.G.); (Q.G.); (B.L.); (G.Z.); (R.Z.); (Q.Y.); (Z.S.)
| | | | | | | | | | | | | | | | | | - Zifang Guo
- Department of Polyethylene, SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing 100013, China; (J.L.); (R.G.); (Q.G.); (B.L.); (G.Z.); (R.Z.); (Q.Y.); (Z.S.)
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3
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Zhang W, Killian L, Thevenon A. Electrochemical recycling of polymeric materials. Chem Sci 2024; 15:8606-8624. [PMID: 38873080 PMCID: PMC11168094 DOI: 10.1039/d4sc01754d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/17/2024] [Indexed: 06/15/2024] Open
Abstract
Polymeric materials play a pivotal role in our modern world, offering a diverse range of applications. However, they have been designed with end-properties in mind over recyclability, leading to a crisis in their waste management. The recent emergence of electrochemical recycling methodologies for polymeric materials provides new perspectives on closing their life cycle, and to a larger extent, the plastic loop by transforming plastic waste into monomers, building blocks, or new polymers. In this context, we summarize electrochemical strategies developed for the recovery of building blocks, the functionalization of polymer chains as well as paired electrolysis and discuss how they can make an impact on plastic recycling, especially compared to traditional thermochemical approaches. Additionally, we explore potential directions that could revolutionize research in electrochemical plastic recycling, addressing associated challenges.
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Affiliation(s)
- Weizhe Zhang
- Organic Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry, Faculty of Science, Utrecht University Universiteitsweg 99 Utrecht The Netherlands
| | - Lars Killian
- Organic Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry, Faculty of Science, Utrecht University Universiteitsweg 99 Utrecht The Netherlands
| | - Arnaud Thevenon
- Organic Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry, Faculty of Science, Utrecht University Universiteitsweg 99 Utrecht The Netherlands
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4
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Liu Y, Wang C, Mu H, Jian Z. Aqueous Coordination-Insertion Copolymerization for Producing High Molecular Weight Polar Polyolefins. Angew Chem Int Ed Engl 2024; 63:e202404392. [PMID: 38548659 DOI: 10.1002/anie.202404392] [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: 03/04/2024] [Indexed: 04/20/2024]
Abstract
Hydrocarbons, when used as the medium for transition metal catalyzed organic reactions and olefin (co-)polymerization, are ubiquitous. Environmentally friendly water is highly attractive and long-sought, but is greatly challenging as coordination-insertion copolymerization reaction medium of olefin and polar monomers. Unfavorable interactions from both water and polar monomer usually lead to either catalyst deactivation or the formation of low-molecular-weight polymers. Herein, we develop well-behaved neutral phosphinophenolato nickel catalysts, which enable aqueous copolymerization of ethylene and diverse polar monomers to produce significantly high-molecular-weight linear polar polyolefins (219-549 kDa, 0.13-1.29 mol %) in a single-component fashion under mild conditions for the first time. These copolymerization reactions occur better in water than in hydrocarbons such as toluene. The dual characteristics of high molecular weight and the incorporation of a small amount of functional group result in improved surface properties while retain the desirable intrinsic properties of high-density polyethylene (HDPE).
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Affiliation(s)
- Yu Liu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Chaoqun Wang
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Hongliang Mu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, China
| | - Zhongbao Jian
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
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5
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Xue Z, Zhang N, Shi L, Luo G. Origins of Ligand-Controlled Stereoselective Polymerization of ortho-Methoxystyrene by Rare-Earth Catalysts: A Theoretical Perspective. Inorg Chem 2024; 63:9195-9203. [PMID: 38722730 DOI: 10.1021/acs.inorgchem.4c00723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
The stereoselective polymerization of polar vinyl monomers has recently received much attention due to their excellent physicochemical properties. Over the past decade, breakthroughs have been achieved in this field by rare-earth catalysts. However, the mechanistic origins of those stereoselective polymerizations still remain unclear. Herein, stereoselective polymerization of ortho-methoxystyrene (oMOS) by several representative rare-earth catalysts bearing different ligands (i.e., η5-C5Me5, pyridinyl-methylene-fluorenyl, quinolyl-anilido, β-diketiminato) were systematically investigated by density functional theory (DFT) calculations. After achieving agreement between the calculations and experiments, we focused on discussing the role of ligands in controlling stereoselectivity. Our results reveal that the stereoregularity of oMOS polymerization is mainly controlled by the steric effect of the catalyst-monomer structures. Specifically, the type of ligand influences the orientation and configuration of the inserting monomer, thereby affecting the tacticity of the polymers. In the cases of η5-C5Me5-, pyridinyl-methylene-fluorenyl, and quinolyl-anilido-ligated yttrium catalysts, we observe consistent insertion directions and alternating insertion sides of oMOS monomers, leading to syndiotactic selectivity. The opposite insertion directions and the alternating insertion sides of oMOS monomers were observed in the case of the β-diketiminato yttrium catalyst, leading to isotactic selectivity. These findings reported here offer valuable insights into the role of ligands in controlling stereoselectivity in rare-earth catalyzed coordination polymerization of polar vinyl monomers, thus providing guidance for the rational design of new ligands for stereospecific polymerization of polar monomers in the future.
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Affiliation(s)
- Zuqian Xue
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Ni Zhang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Lei Shi
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Gen Luo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
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6
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Shi L, Zhang N, Xue Z, Luo G. Mechanistic Insights into Rare-Earth-Catalyzed Alternating Copolymerization through C-H Polyaddition of Functionalized Organic Compounds to Unconjugated Dienes. Inorg Chem 2024; 63:8079-8091. [PMID: 38663005 DOI: 10.1021/acs.inorgchem.4c00097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Density functional theory (DFT) calculations have been conducted to elucidate the detailed mechanisms of yttrium-catalyzed C-H polyaddition of 1,4-dimethoxybenzene (DMB) to 1,4-divinylbenzene (DVB). It was computationally determined that DMB not only serves as a substrate but also performs a crucial role as a ligand, stabilizing the catalytically active species and promoting alkene insertion. Side pathways involving Cβ-H activation and C═C continuous insertion were excluded due to steric and electronic factors, respectively, explaining why the reaction occurred efficiently and selectively to give perfectly alternating DMB-DVB polymers. Interestingly, the theoretical prediction of the reactivity of N,N-dimethyl-1,4-phenylenediamine and 2,2'-biethyl-4,4'-bipyridine reveals significant differences in the coordination effects of these substrates, leading to distinct mechanisms, primarily influenced by their steric effects. These findings shed new light on the previously overlooked role of substrate ligand effects in rare-earth-catalyzed step-growth copolymerization reactions.
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Affiliation(s)
- Lei Shi
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Ni Zhang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Zuqian Xue
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Gen Luo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
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7
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Wu R, Lenz TM, Alfayez FAS, Zhao R, Rupper P, Perret E, Lehner S, Jovic M, Gaan S, Rieger B, Heuberger M. Ambient Catalytic Spinning of Polyethylene Nanofibers. Angew Chem Int Ed Engl 2024; 63:e202315326. [PMID: 38226704 DOI: 10.1002/anie.202315326] [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: 10/11/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
A novel single-atom Ni(II) catalyst (Ni-OH) is covalently immobilized onto the nano-channels of mesoporous Santa Barbara Amorphous (SBA)-15 particles and isotropic Anodized Aluminum Oxide (AAO) membrane for confined-space ethylene extrusion polymerization. The presence of surface-tethered Ni complexes (Ni@SBA-15 and Ni@AAO) is confirmed by the inductively coupled plasma-optical emission spectrometry (ICP-OES) and X-ray photoelectron spectroscopy (XPS). In the catalytic spinning process, the produced PE materials exhibit very homogeneous fibrous morphology at nanoscale (diameter: ~50 nm). The synthesized PE nanofibers extrude in a highly oriented manner from the nano-reactors at ambient temperature. Remarkably high Mw (1.62×106 g mol-1 ), melting point (124 °C), and crystallinity (41.8 %) are observed among PE samples thanks to the confined-space polymerization. The chain-walking behavior of surface tethered Ni catalysts is greatly limited by the confinement inside the nano-channels, leading to the formation of very low-branched PE materials (13.6/1000 C). Due to fixed supported catalytic topology and room temperature, the filaments are expected to be free of entanglement. This work signifies an important step towards the realization of a continuous mild catalytic-spinning (CATSPIN) process, where the polymer is directly synthesized into fiber shape at negligible chain branching and elegantly avoiding common limitations like thermal degradation or molecular entanglement.
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Affiliation(s)
- Ruikai Wu
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
- Department of Materials, ETH, Zurich, 8092, Zurich, Switzerland
| | - Tim M Lenz
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Fayez Abdullah S Alfayez
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Ruohan Zhao
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Patrick Rupper
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Edith Perret
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Sandro Lehner
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Milijana Jovic
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Sabyasachi Gaan
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Bernhard Rieger
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Manfred Heuberger
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
- Department of Materials, ETH, Zurich, 8092, Zurich, Switzerland
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8
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Zhang N, Xue Z, Shi L, Luo G. Unveiling the Detailed Mechanism and Origins of Chemo-, Regio-, and Stereoselectivity of Rare-Earth Catalyzed Alternating Copolymerization of Polar and Nonpolar Olefins. Inorg Chem 2024; 63:3544-3559. [PMID: 38308632 DOI: 10.1021/acs.inorgchem.3c04428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
The direct copolymerization of polar and nonpolar olefins is of great interest and significance, as it is the most atom-economical and straightforward strategy for the synthesis of functional polyolefin materials. Despite considerable efforts, the precise control of monomer-sequence and their regio- and stereochemistry is full of challenges, and the related mechanistic origins are still in their infancy to date. Herein, the mechanistic studies on the model reaction of Sc-catalyzed co-syndiospecific alternating copolymerization of anisylpropylene (AP) and styrene were performed by DFT calculations. The results suggest that the subtle balance between electronic and steric factors plays an important role during monomer insertions, and a new amino-dissociated mechanism was proposed for AP insertion at chain initiation. AP insertion follows the 2,1-si-insertion pattern, which is mainly controlled by steric factors caused by the restricted MeO···Sc interaction. As for styrene insertion, it prefers the 2,1-re-insertion manner and its regio- and stereoselectivities are influenced by steric repulsions between the inserting styrene and the polymer chain or the ligand. More interestingly, it is found that the alternating monomer-sequence is mainly determined by the "steric matching" principle, which is quantitatively expressed by the buried volume of the metal center of the preinserted species. The concept of steric pocket has been successfully applied to explain the different performances of several catalysts and other alternating copolymerization reactions. The insightful mechanistic findings and the quantitative steric pocket model present here are expected to promote rational design of new rare-earth catalysts for developing regio-, stereo-, and sequence-controlled copolymerization of specific polar and nonpolar olefins.
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Affiliation(s)
- Ni Zhang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Zuqian Xue
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Lei Shi
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Gen Luo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
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9
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Li M, Cai Z, Eisen MS. Norbornene Copolymerization with Polar Monomers Catalyzed by Palladium Catalysts Containing Imidazolidin-2-imine/Guanidine Ligands. Inorg Chem 2024; 63:1774-1783. [PMID: 38104269 DOI: 10.1021/acs.inorgchem.3c03093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
The development of a palladium catalyst that has enhanced catalytic performance, such as low aluminum cocatalyst loading, good copolymerization ability, high molecular weight, and excellent solubility of the (co)polymers, is still a challenge in norbornene copolymerizations. Here, a series of PdCl2 and PdMeCl complexes containing differently substituted anilines and imidazolidin-2-imine/guanidine ligands was successfully synthesized and characterized. X-ray diffraction analysis results revealed that these Pd complexes adopted an almost square-planar geometry, and the six-membered chelate ring showed structural distinctions as compared to traditional N^N-based α-diimine and β-diimine Pd complexes. These Pd complexes were activated by EtAlCl2 and then exhibited moderate activity (104-105 g mol-1 h-1) and good thermal stability (up to 90 °C) for norbornene polymerization to produce high-molecular-weight PNBs (Mn up to 96.4 kg mol-1) with narrow polydispersities (PDI as low as 1.39). These Pd complexes also exhibited good polar group tolerance in the copolymerization of norbornene with methyl 5-norbornene-2-carboxylate and methyl 10-undecenoate, in which the activity was achieved up to 7.04 × 104 g mol-1 h-1. It furnished polar functionalized norbornene-based copolymers with high molecular weight (Mn up to 63.1 kg mol-1), narrow PDI, reasonable polar monomer incorporation, and good solubility. These Pd catalysts exhibited an enhanced copolymerization ability to produce PNB or NB-based copolymers, representing significant progress in this field.
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Affiliation(s)
- Mingyuan Li
- Department of Chemistry, Guangdong Technion - Israel Institute of Technology, Shantou 515063, P. R. China
| | - Zhengguo Cai
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Moris S Eisen
- Department of Chemistry, Guangdong Technion - Israel Institute of Technology, Shantou 515063, P. R. China
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
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10
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Xiong S, Hong A, Ghana P, Bailey BC, Spinney HA, Bailey H, Henderson BS, Marshall S, Agapie T. Acrylate-Induced β-H Elimination in Coordination Insertion Copolymerizaton Catalyzed by Nickel. J Am Chem Soc 2023; 145:26463-26471. [PMID: 37992227 DOI: 10.1021/jacs.3c10800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Polar monomer-induced β-H elimination is a key elementary step in polar polyolefin synthesis by coordination polymerization but remains underexplored. Herein, we show that a bulky neutral Ni catalyst, 1Ph, is not only a high-performance catalyst in ethylene/acrylate copolymerization (activity up to ∼37,000 kg/(mol·h) at 130 °C in a batch reactor, mol % tBA ∼ 0.3) but also a suitable platform for investigation of acrylate-induced β-H elimination. 4Ph-tBu, a novel Ni alkyl complex generated after acrylate-induced β-H elimination and subsequent acrylate insertion, was identified and characterized by crystallography. A combination of catalysis and mechanistic studies reveals effects of the acrylate monomer, bidentate ligand, and the labile ligand (e.g., pyridine) on the kinetics of β-H elimination, the role of β-H elimination in copolymerization catalysis as a chain-termination pathway, and its potential in controlling the polymer microstructure in polar polyolefin synthesis.
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Affiliation(s)
- Shuoyan Xiong
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Alexandria Hong
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Priyabrata Ghana
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Brad C Bailey
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, Michigan 48667, United States
| | - Heather A Spinney
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, Michigan 48667, United States
| | - Hannah Bailey
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, Michigan 48667, United States
| | - Briana S Henderson
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, Michigan 48667, United States
| | - Steve Marshall
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, Michigan 48667, United States
| | - Theodor Agapie
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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11
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Wang C, Xia J, Zhang Y, Hu X, Jian Z. Photodegradable polar-functionalized polyethylenes. Natl Sci Rev 2023; 10:nwad039. [PMID: 37600561 PMCID: PMC10434297 DOI: 10.1093/nsr/nwad039] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/06/2022] [Accepted: 02/02/2023] [Indexed: 08/22/2023] Open
Abstract
The degradation of plastics has attracted much attention from the global community. Polyethylenes (PEs), as the most abundant synthetic plastics, are most frequently studied. PE is non-degradable and non-polar because of the sole presence of the pure hydrocarbon components. Concurrent incorporation of both in-chain cleavable and functional groups into the PE chain is an effective pathway to overcome the non-degradable and non-polar issue; however, the method for achieving this pathway remains elusive. Here, we report a strictly non-alternating (>99%) terpolymerization of ethylene with CO and fundamental polar monomers via a coordination-insertion mechanism using late transition metal catalysts, which effectively prevents the formation of undesired chelates originating from both co-monomers under a low CO concentration. High-molecular-weight linear PEs with both in-chain isolated keto (>99%) and main-chain functional groups are prepared. The incorporation of key low-content isolated keto groups makes PEs photodegradable while retaining their desirable bulk material properties, and the introduction of polar functional groups considerably improves their surface properties.
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Affiliation(s)
- Chaoqun Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, Universityof Science and Technology of China, Hefei 230026, China
| | - Jian Xia
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yuxing Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, Universityof Science and Technology of China, Hefei 230026, China
| | - Xiaoqiang Hu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, Universityof Science and Technology of China, Hefei 230026, China
| | - Zhongbao Jian
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, Universityof Science and Technology of China, Hefei 230026, China
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12
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Tong L, Zhou M, Chen Y, Lu K, Zhang Z, Mu Y, He Z. A New Self-Healing Degradable Copolymer Based on Polylactide and Poly(p-dioxanone). Molecules 2023; 28:molecules28104021. [PMID: 37241762 DOI: 10.3390/molecules28104021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
In this paper, the copolymerization of poly (p-dioxanone) (PPDO) and polylactide (PLA) was carried out via a Diels-Alder reaction to obtain a new biodegradable copolymer with self-healing abilities. By altering the molecular weights of PPDO and PLA precursors, a series of copolymers (DA2300, DA3200, DA4700 and DA5500) with various chain segment lengths were created. After verifying the structure and molecular weight by 1H NMR, FT-IR and GPC, the crystallization behavior, self-healing properties and degradation properties of the copolymers were evaluated by DSC, POM, XRD, rheological measurements and enzymatic degradation. The results show that copolymerization based on the DA reaction effectively avoids the phase separation of PPDO and PLA. Among the products, DA4700 showed a better crystallization performance than PLA, and the half-crystallization time was 2.8 min. Compared to PPDO, the heat resistance of the DA copolymers was improved and the Tm increased from 93 °C to 103 °C. Significantly, the rheological data also confirmed that the copolymer was self-healing and showed obvious self-repairing properties after simple tempering. In addition, an enzyme degradation experiment showed that the DA copolymer can be degraded by a certain amount, with the degradation rate lying between those of PPDO and PLA.
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Affiliation(s)
- Laifa Tong
- Material Science and Engineering, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310000, China
| | - Mi Zhou
- Material Science and Engineering, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310000, China
| | - Yulong Chen
- Material Science and Engineering, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310000, China
| | - Kai Lu
- Material Science and Engineering, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310000, China
| | - Zhaohua Zhang
- Material Science and Engineering, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310000, China
| | - Yuesong Mu
- Material Science and Engineering, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310000, China
| | - Zejian He
- Material Science and Engineering, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310000, China
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13
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Wang YB, Nan C, Zhuo W, Zou C, Jiang H, Hao XQ, Chen C, Song MP. Amine-Imine Nickel Catalysts with Pendant O-Donor Groups for Ethylene (Co)Polymerization. Inorg Chem 2023; 62:5105-5113. [PMID: 36933227 DOI: 10.1021/acs.inorgchem.2c04240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
The introduction of a secondary interaction is an efficient strategy to modulate transition-metal-catalyzed ethylene (co)polymerization. In this contribution, O-donor groups were suspended on amine-imine ligands to synthesize a series of nickel complexes. By adjusting the interaction between the nickel metal center and the O-donor group on the ligands, these nickel complexes exhibited high activities for ethylene polymerization (up to 3.48 × 106 gPE·molNi-1·h-1) with high molecular weight up to 5.59 × 105 g·mol-1 and produced good polyethylene elastomers (strain recovery (SR) = 69-81%). In addition, these nickel complexes can catalyze the copolymerization of ethylene with vinyl acetic acid, 6-chloro-1-hexene, 10-undecylenic, 10-undecenoic acid, and 10-undecylenic alcohol to prepare the functionalized polyolefins.
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Affiliation(s)
- Yan-Bing Wang
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Chenlong Nan
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Weize Zhuo
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Chen Zou
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Hui Jiang
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Changle Chen
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
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14
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Ullah Khan W, Mazhar H, Shehzad F, Al-Harthi MA. Recent Advances in Transition Metal-Based Catalysts for Ethylene Copolymerization with Polar Comonomer. CHEM REC 2023; 23:e202200243. [PMID: 36715494 DOI: 10.1002/tcr.202200243] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/18/2023] [Indexed: 01/31/2023]
Abstract
The synthesis of polar functionalized polyolefin (PFP) offers improvement in mixing properties, polymer surface, and rheological properties with the potential of upgraded polyolefins for modern and ingenious applications. The synthesis of PFP from metal-based catalyzed olefin (non-polar in nature) copolymerization with polar comonomers embodies energy-efficient, atom-efficient, and apparently an upfront methodology. Despite their outstanding success during conventional polymerization of olefin, 3rd and 4th group (early transition metal)-based catalysts, owing to their electrophilic nature, face challenges mainly due to Lewis basic sites of the polar monomers. On the contrary, late transition metal-based catalysts have also made progress, in recent years, for PFP synthesis. The recent past has also witnessed several advancements in the development of dominating palladium-based catalysts while their lower resistance towards ligand functional groups has limited the practical application of abundant and cheaper nickel-based catalysts. However, the relentless efforts of the scientific community, during the past half-decade, have indicated rigorous progress in the development of nickel-based catalysts for PFP synthesis. In this review, we have abridged the recent research trends in both early as well as late transition metal-based catalyst development. Furthermore, we have highlighted the role of transition metal-based catalysts in influencing the polymer properties.
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Affiliation(s)
- Wasim Ullah Khan
- Interdisciplinary Research Center for Refining & Advanced Chemicals, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Hassam Mazhar
- Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Farrukh Shehzad
- Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Mamdouh A Al-Harthi
- Interdisciplinary Research Center for Refining & Advanced Chemicals, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.,Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
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15
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Zong Y, Wang C, Zhang Y, Jian Z. Polar-Functionalized Polyethylenes Enabled by Palladium-Catalyzed Copolymerization of Ethylene and Butadiene/Bio-Based Alcohol-Derived Monomers. Polymers (Basel) 2023; 15:polym15041044. [PMID: 36850326 PMCID: PMC9967981 DOI: 10.3390/polym15041044] [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: 12/30/2022] [Revised: 02/03/2023] [Accepted: 02/05/2023] [Indexed: 02/22/2023] Open
Abstract
Polar-functionalized polyolefins are high-value materials with improved properties. However, their feedstocks generally come from non-renewable fossil products; thus, it requires the development of renewable bio-based monomers to produce functionalized polyolefins. In this contribution, via the Pd-catalyzed telomerization of 1,3-butadiene and three types of bio-based alcohols (furfuryl alcohol, tetrahydrofurfuryl alcohol, and solketal), 2,7-octadienyl ether monomers including OC8-FUR, OC8-THF, and OC8-SOL were synthesized and characterized, respectively. The copolymerization of these monomers with ethylene catalyzed by phosphine-sulfonate palladium catalysts was further investigated. Microstructures of the resultant copolymers were analyzed by NMR and ATR-IR spectroscopy, revealing linear structures with incorporations of difunctionalized side chains bearing both allyl ether units and polar cyclic groups. Mechanical property studies exhibited better strain-at-break of these copolymers compared to the non-polar polyethylene, among which the copolymer E-FUR with the incorporation of 0.3 mol% displayed the highest strain-at-break and stress-at-break values of 940% and 35.9 MPa, respectively.
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Affiliation(s)
- Yanlin Zong
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Chaoqun Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yixin Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- Correspondence: (Y.Z.); (Z.J.)
| | - Zhongbao Jian
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Correspondence: (Y.Z.); (Z.J.)
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16
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Xu M, Chen A, Li W, Li Y, Zou C, Chen C. Efficient Synthesis of Polar Functionalized Polyolefins with High Biomass Content. Macromolecules 2023. [DOI: 10.1021/acs.macromol.3c00086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Affiliation(s)
- Menghe Xu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Ao Chen
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wu Li
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yougui Li
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chen Zou
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Changle Chen
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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17
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Li K, Cui L, Zhang Y, Jian Z. Amide-Functionalized Polyolefins and Facile Post-Transformations. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02517] [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)
- Kangkang Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Lei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yixin Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zhongbao Jian
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
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18
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Rational Design of Aldimine Imidazolidin-2-imine/Guanidine Nickel Catalysts for Norbornene (Co)Polymerizations with Enhanced Catalytic Performance. J Catal 2023. [DOI: 10.1016/j.jcat.2023.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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19
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Zheng H, Pei L, Deng H, Gao H, Gao H. Electronic effects of amine-imine nickel and palladium catalysts on ethylene (co)polymerization. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2022.111773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Capacchione C, Grisi F, Lamberti M, Mazzeo M, Milani B, Milione S, Pappalardo D, Zuccaccia C, Pellecchia C. Metal Catalyzed Polymerization: From Stereoregular Poly(α‐olefins) to Tailor‐Made Biodegradable/Biorenewable Polymers and Copolymers. Eur J Inorg Chem 2023. [DOI: 10.1002/ejic.202200644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Carmine Capacchione
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
| | - Fabia Grisi
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
| | - Marina Lamberti
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
| | - Mina Mazzeo
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
| | - Barbara Milani
- Dipartimento di Scienze Chimiche e Farmaceutiche Università di Trieste Via Licio Giorgieri 1 34127 Trieste Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
| | - Stefano Milione
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
| | - Daniela Pappalardo
- Dipartimento di Scienze e Tecnologie Università del Sannio Via de Sanctis snc 82100 Benevento Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
| | - Cristiano Zuccaccia
- Dipartimento di Chimica, Biologia e Biotecnologie Università di Perugia Via Elce di Sotto 8 06132 Perugia Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
| | - Claudio Pellecchia
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
- Consorzio per la Reattività Chimica e la Catalisi (CIRCC) Via Celso Ulpiani 27 70126 Bari Italy
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21
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‘Catalyst + X’ strategies for transition metal-catalyzed olefin-polar monomer copolymerization. TRENDS IN CHEMISTRY 2023. [DOI: 10.1016/j.trechm.2022.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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22
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Wu R, Klingler Wu W, Stieglitz L, Gaan S, Rieger B, Heuberger M. Recent advances on α-diimine Ni and Pd complexes for catalyzed ethylene (Co)polymerization: A comprehensive review. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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23
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Turney KM, Kaewdeewong P, Eagan JM. Ethylene polymerization using heterogeneous multinuclear nickel catalysts supported by a crosslinked alpha diimine ligand network. Polym Chem 2023. [DOI: 10.1039/d3py00118k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
A crosslinked alpha diimine ligand supporting a nickel metal center polymerizes ethylene to produce polyethylene with controlled microstructures, high activities, and can be removed from the product.
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Affiliation(s)
- Keaton M. Turney
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio, 44325-3909 USA
| | - Parin Kaewdeewong
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio, 44325-3909 USA
| | - James M. Eagan
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio, 44325-3909 USA
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24
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Wu R, Stieglitz L, Lehner S, Jovic M, Rentsch D, Neels A, Gaan S, Rieger B, Heuberger M. Fluorine and Hydroxyl Containing Unsymmetrical a-Diimine Ni (II) Dichlorides with Improved Catalytic Performance for Ethylene Polymerization. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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25
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Qasim M, Tian W, Pang W, Pan Y, Behzadi S, Chen M. Effect of Coumarin backbone in N^O type Nickel Catalyzed Olefin Polymerization. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2022.111808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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26
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Sun H, Fan H, Zhu C, Zou W, Dai S. Direct Synthesis of Partially Chain-Straightened Propylene Oligomers and P-MA Co-Oligomers Using Axially Flexible Shielded Iminopyridyl Palladium Complexes. Polymers (Basel) 2022; 15:polym15010111. [PMID: 36616461 PMCID: PMC9823751 DOI: 10.3390/polym15010111] [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: 12/05/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
In this study, a series of partially chain-straightened propylene oligomers and functional propylene−methyl acrylate (P-MA) co-oligomers were synthesized with 8-alkyl-iminopyridyl Pd(II) catalysts. The molecular weight and polar monomer incorporation ratio could be tuned by using Pd(II) catalysts with various 8-alkyl-naphthyl substituents (8-alkyl: H, Me, and n-Bu). In propylene oligomerization, all the 8-alkyl-iminopyridyl Pd(II) catalysts convert propylene to partially chain-straightened (119−136/1000 C) oligomers with low molecular weights (0.3−1.5 kg/mol). Among the catalysts, Pd1 with non-substituent (H) on the ligand showed the highest activity of 5.4 × 104 g/((mol of Pd) h), generating oligomers with the lowest molecular weight (Mn: 0.3 kg/mol). Moreover, polar-functionalized propylene-MA co-oligomers with very high incorporation ratios (22.8−36.5 mol %) could be obtained in the copolymerization using these 8-alkyl-iminopyridyl Pd(II) catalysts. Additionally, Pd1 exhibited the best performance in propylene-MA copolymerization as it displayed the highest MA incorporation ratio of up to 36.5 mol%. All the three catalysts are capable of generating partially chain-straightened P-MA co-oligomers and the activities decrease gradually while the molecular weight increases with the increasing steric hindrance of the alkyl substituent (H < Me < n-Bu). Compared to Pd4 with the rigid 8-aryl substituent, the flexible 8-alkyl-iminopyridyl Pd(II) catalysts (Pd1-3) not only showed much higher activities in the propylene oligomerization, but also yielded P-MA co-oligomers with significantly higher incorporation ratios in the propylene co-oligomerization.
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Affiliation(s)
- Huayin Sun
- School of Chemical and Materials Engineering, Huainan Normal University, Huainan 232038, China
| | - Huijun Fan
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, China
| | - Chuangao Zhu
- School of Chemical and Materials Engineering, Huainan Normal University, Huainan 232038, China
| | - Wenping Zou
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712, USA
- Correspondence: (W.Z.); (S.D.)
| | - Shengyu Dai
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, China
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, China
- Correspondence: (W.Z.); (S.D.)
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27
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Li F, Xiao L, Li B, Hu X, Liu L. Carbene polymerization from the catalyzed decomposition of diazo compounds: Mechanism and modern development. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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28
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Zhang Y, Zhang Y, Hu X, Wang C, Jian Z. Advances on Controlled Chain Walking and Suppression of Chain Transfer in Catalytic Olefin Polymerization. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yixin Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yuxing Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Xiaoqiang Hu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Chaoqun Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Zhongbao Jian
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
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29
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Developments in late transition metal catalysts with high thermal stability for ethylene polymerization: A crucial aspect from laboratory to industrialization. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111693] [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]
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30
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Transition Metal-(μ-Cl)-Aluminum Bonding in α-Olefin and Diene Chemistry. Molecules 2022; 27:molecules27217164. [PMID: 36363991 PMCID: PMC9654437 DOI: 10.3390/molecules27217164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
Olefin and diene transformations, catalyzed by organoaluminum-activated metal complexes, are widely used in synthetic organic chemistry and form the basis of major petrochemical processes. However, the role of M−(μ-Cl)−Al bonding, being proven for certain >C=C< functionalization reactions, remains unclear and debated for essentially more important industrial processes such as oligomerization and polymerization of α-olefins and conjugated dienes. Numerous publications indirectly point at the significance of M−(μ-Cl)−Al bonding in Ziegler−Natta and related transformations, but only a few studies contain experimental or at least theoretical evidence of the involvement of M−(μ-Cl)−Al species into catalytic cycles. In the present review, we have compiled data on the formation of M−(μ-Cl)−Al complexes (M = Ti, Zr, V, Cr, Ni), their molecular structure, and reactivity towards olefins and dienes. The possible role of similar complexes in the functionalization, oligomerization and polymerization of α-olefins and dienes is discussed in the present review through the prism of the further development of Ziegler−Natta processes and beyond.
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31
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Urnezius E, Gushtyuk EI, Huynh BQ, Young BM, Valente EJ. Synthesis and structures of EOM-protected 2,6-bis(diphenylphosphino)-4-methylphenol and its deprotected P-chalcogenides, 2,6-bis(Ph 2P = E)-4-methylphenols (E = O, S, Se). PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2022.2134374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Eugenijus Urnezius
- Department of Chemistry & Biochemistry, University of Portland, Portland, OR, USA
| | | | - Bao Q. Huynh
- Department of Chemistry & Biochemistry, University of Portland, Portland, OR, USA
| | - Brytney M. Young
- Department of Chemistry & Biochemistry, University of Portland, Portland, OR, USA
| | - Edward J. Valente
- Department of Chemistry & Biochemistry, University of Portland, Portland, OR, USA
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32
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Wang Q, Wang W, Qu W, Pang W, Qasim M, Zou C. Ethylene homo and copolymerization by phosphorus‐benzoquinone based homogeneous and heterogeneous nickel catalysts. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Quan Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Wenbing Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Weicheng Qu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Wenmin Pang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Muhammad Qasim
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Chen Zou
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
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33
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Zhang R, Gao R, Gou Q, Lai J, Li X. Recent Advances in the Copolymerization of Ethylene with Polar Comonomers by Nickel Catalysts. Polymers (Basel) 2022; 14:polym14183809. [PMID: 36145954 PMCID: PMC9500745 DOI: 10.3390/polym14183809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/28/2022] [Accepted: 07/30/2022] [Indexed: 11/16/2022] Open
Abstract
The less-expensive and earth-abundant nickel catalyst is highly promising in the copolymerization of ethylene with polar monomers and has thus attracted increasing attention in both industry and academia. Herein, we have summarized the recent advancements made in the state-of-the-art nickel catalysts with different types of ligands for ethylene copolymerization and how these modifications influence the catalyst performance, as well as new polymerization modulation strategies. With regard to α-diimine, salicylaldimine/ketoiminato, phosphino-phenolate, phosphine-sulfonate, bisphospnine monoxide, N-heterocyclic carbene and other unclassified chelates, the properties of each catalyst and fine modulation of key copolymerization parameters (activity, molecular weight, comonomer incorporation rate, etc.) are revealed in detail. Despite significant achievements, many opportunities and possibilities are yet to be fully addressed, and a brief outlook on the future development and long-standing challenges is provided.
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34
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Synthesis of Ultra-High molecular weight polyethylene elastomers by para-tert-Butyl dibenzhydryl functionalized α-Diimine nickel catalysts at elevated temperature. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Sun Y, Wang Q, Pan Y, Pang W, Zou C, Chen M.
SiO
2
‐supported Ni(
II
) and Fe(
II
) Catalysts bearing Sodium ‐Sulfonate Group for Olefin Polymerization. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200415] [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)
- Yao Sun
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Quan Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Yao Pan
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Wenmin Pang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Chen Zou
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Min Chen
- Institutes of Physical Science and Information Technology Anhui University Hefei Anhui 230601 China
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36
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Xiong S, Hong A, Bailey BC, Spinney HA, Senecal TD, Bailey H, Agapie T. Highly Active and Thermally Robust Nickel Enolate Catalysts for the Synthesis of Ethylene-Acrylate Copolymers. Angew Chem Int Ed Engl 2022; 61:e202206637. [PMID: 35723944 DOI: 10.1002/anie.202206637] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Indexed: 11/05/2022]
Abstract
The insertion copolymerization of polar olefins and ethylene remains a significant challenge in part due to catalysts' low activity and poor thermal stability. Herein we demonstrate a strategy toward addressing these obstacles through ligand design. Neutral nickel phosphine enolate catalysts with large phosphine substituents reaching the axial positions of Ni achieve activity of up to 7.7×103 kg mol-1 h-1 (efficiency >35×103 g copolymer/g Ni) at 110 °C, notable for ethylene/acrylate copolymerization. NMR analysis of resulting copolymers reveals highly linear microstructures with main-chain ester functionality. Structure-performance studies indicate a strong correlation between axial steric hindrance and catalyst performance.
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Affiliation(s)
- Shuoyan Xiong
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Alexandria Hong
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Brad C Bailey
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, MI 48667, USA
| | - Heather A Spinney
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, MI 48667, USA
| | - Todd D Senecal
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, MI 48667, USA
| | - Hannah Bailey
- Chemical Science, Core R&D, The Dow Chemical Company, Midland, MI 48667, USA
| | - Theodor Agapie
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
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37
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Late Transition Metal Catalysts with Chelating Amines for Olefin Polymerization. Catalysts 2022. [DOI: 10.3390/catal12090936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Polyolefins are the most consumed polymeric materials extensively used in our daily life and are usually generated by coordination polymerization in the polyolefin industry. Olefin polymerization catalysts containing transition metal–organic compound combinations are undoubtedly crucial for the development of the polyolefin industry. The nitrogen donor atom has attracted considerable interest and is widely used in combination with the transition metal for the fine-tuning of the chemical environment around the metal center. In addition to widely reported olefin polymerization catalysts with imine and amide donors (sp2 hybrid N), late transition metal catalysts with chelating amine donors (sp3 hybrid N) for olefin polymerization have never been reviewed. In this review paper, we focus on late transition metal (Ni, Pd, Fe, and Co) catalysts with chelating amines for olefin polymerization. A variety of late transition metal catalysts bearing different neutral amine donors are surveyed for olefin polymerization, including amine–imine, amine–pyridine, α-diamine, and [N, N, N] tridentate ligands with amine donors. The relationship between catalyst structure and catalytic performance is also encompassed. This review aims to promote the design of late transition metal catalysts with unique chelating amine donors for the development of high-performance polyolefin materials.
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38
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Xu M, Liu Y, Pang W, Pan Y, Chen M, Zou C, Tan C. Cocatalyst effects in α-diimine nickel catalyzed ethylene polymerization. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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39
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Wang Y, Pang W, Zhang S, Tan C. Lewis Acids Modulation in Phosphine‐Sulfonate Palladium Catalyzed Ethylene Polymerization. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yong Wang
- Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Wenmin Pang
- Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Shaojie Zhang
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education Anhui University Hefei Anhui China
| | - Chen Tan
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education Anhui University Hefei Anhui China
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40
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Chen SY, Ren BH, Li SH, Song YH, Jiao S, Zou C, Chen C, Lu XB, Liu Y. Cationic P,O-Coordinated Nickel(II) Catalysts for Carbonylative Polymerization of Ethylene: Unexpected Productivity via Subtle Electronic Variation. Angew Chem Int Ed Engl 2022; 61:e202204126. [PMID: 35575978 DOI: 10.1002/anie.202204126] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Indexed: 11/06/2022]
Abstract
Transition-metal-catalyzed copolymerization of ethylene with carbon monoxide affords polyketones materials with excellent mechanical strength, photodegradability, surface and barrier properties. Unlike the widely used and rather expensive Pd catalysts, Ni-catalyzed carbonylative polymerization is very difficult since the strong binding affinity of CO to Ni deactivates the highly electrophilic metal center easily. In this study, various cationic P,O-coordinated Ni complexes were synthesized using the electronic modulation strategy, and the catalyst with strong electron-donating substituents exhibits an excellent productivity of 104 g polymer (g Ni)-1 , which represents a rare discovery that a Ni complex could operate with such exceptional efficiency in comparison with Pd catalysts. Notably, those Ni catalysts were also efficient for terpolymerization of ethylene, propylene with CO for producing commercial polyketone materials with low melting temperatures and easy processibility.
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Affiliation(s)
- Shi-Yu Chen
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Bai-Hao Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Shi-Huan Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Yu-Hang Song
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Shuang Jiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Chen Zou
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Changle Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
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41
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Wang C, Kang X, Mu H, Jian Z. Positive Effect of Polar Solvents in Olefin Polymerization Catalysis. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chaoqun Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Xiaohui Kang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Hongliang Mu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
| | - Zhongbao Jian
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
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42
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Xiong S, Hong A, Bailey BC, Spinney HA, Senecal TD, Bailey H, Agapie T. Highly Active and Thermally Robust Nickel Enolate Catalysts for the Synthesis of Ethylene‐Acrylate Copolymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shuoyan Xiong
- California Institute of Technology Division of Chemistry and Chemical Engineering UNITED STATES
| | - Alexandria Hong
- California Institute of Technology Chemistry and Chemical Engineering UNITED STATES
| | | | | | | | | | - Theodor Agapie
- California Institute of Technology Chemistry 1200 California BlvdMC 127-72 91106 Pasadena UNITED STATES
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43
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Guo L, Chen W, Wang W, An W, Gao S, Zhao Y, Luo M, He G, Liu T. Ortho-substituent Effect on Metal Coordination Geometry, Chain Microstructure and Polymer Properties in α-Diimine Nickel-catalyzed Long Chain α-Olefin Polymerization. J Catal 2022. [DOI: 10.1016/j.jcat.2022.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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44
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Karimi M, Arabi H, Sadjadi S. New advances in olefin homo and copolymerization using neutral, single component palladium/nickel complexes ligated by a phosphine-sulfonate. J Catal 2022. [DOI: 10.1016/j.jcat.2022.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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45
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Chen M, Chen C. Nickel catalysts for the preparation of functionalized polyolefin materials. CHINESE SCIENCE BULLETIN-CHINESE 2022. [DOI: 10.1360/tb-2021-1187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Chen S, Ren B, Li S, Song Y, Jiao S, Zou C, Chen C, Lu X, Liu Y. Cationic P,O‐Coordinated Nickel(II) Catalysts for Carbonylative Polymerization of Ethylene: Unexpected Productivity via Subtle Electronic Variation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shi‐Yu Chen
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Bai‐Hao Ren
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Shi‐Huan Li
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Yu‐Hang Song
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Shuang Jiao
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Chen Zou
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Changle Chen
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
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47
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Lu W, Liao Y, Dai S. Facile Access to Ultra-Highly Branched Polyethylenes Using Hybrid “Sandwich” Ni(II) and Pd(II) Catalysts. J Catal 2022. [DOI: 10.1016/j.jcat.2022.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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48
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Wang X, Xu M, Zhang S, Qasim M, Chen M. Fluorine Effect on α-Imino-ketone- and Phenoxyiminato Nickel-Catalyzed Ethylene Homo- and Copolymerization. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaoyue Wang
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Mengli Xu
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Shaojie Zhang
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Muhammad Qasim
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Min Chen
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
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49
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Du W, Zheng H, Li Y, Cheung CS, Li D, Gao H, Deng H, Gao H. Neutral Tridentate α-Sulfonato-β-diimine Nickel Catalyst for (Co)polymerizations of Ethylene and Acrylates. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00268] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenbo Du
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Handou Zheng
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Yinwu Li
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Chi Shing Cheung
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Donghui Li
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Heng Gao
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Huiyun Deng
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Haiyang Gao
- School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
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50
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Mohammadi M, Ghorbani-Choghamarani A. Complexation of guanidino containing l-arginine with nickel on silica-modified Hercynite MNPs: a novel catalyst for the Hantzsch synthesis of polyhydroquinolines and 2,3-Dihydroquinazolin-4(1H)-ones. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04706-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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