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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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‘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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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; 14:3809. [PMID: 36145954 PMCID: PMC9500745 DOI: 10.3390/polym14183809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [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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Affiliation(s)
- Randi Zhang
- Department of Polyethylene, SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing 100013, China
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Tran TV, Lee E, Nguyen YH, Nguyen HD, Do LH. Customizing Polymers by Controlling Cation Switching Dynamics in Non-Living Polymerization. J Am Chem Soc 2022; 144:17129-17139. [PMID: 36069706 DOI: 10.1021/jacs.2c07098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Controlling the chain growth process in non-living polymerization reactions is difficult because chain termination typically occurs faster than the time it takes to apply an external trigger. To overcome this limitation, we have developed a strategy to regulate non-living polymerizations by exploiting the chemical equilibria between a metal catalyst and secondary metal cations. We have prepared two nickel phenoxyphosphine-polyethylene glycol variants, one with 2-methoxyphenyl (Ni1) and another with 2,6-dimethoxyphenyl (Ni2) phosphine substituents. Ethylene polymerization studies using these complexes in the presence of alkali salts revealed that chain growth is strongly dependent on electronic effects, whereas chain termination is dependent on both steric and electronic effects. By adjusting the solvent polarity, we can favor polymerizations via non-switching or dynamic switching modes. For example, in a 100:0.2 mixture of toluene/diethyl ether, reactions of Ni1 and both Li+ and Na+ cations in the presence of ethylene yielded bimodal polymers with different relative fractions depending on the Li+/Na+ ratio used. In a 98:2 mixture of toluene/diethyl ether, reactions of Ni2 and Cs+ in the presence of ethylene generated monomodal polyethylene with dispersity <2.0 and increasing molecular weight as the amount of Cs+ added increased. Solution studies by NMR spectroscopy showed that cation exchange between the nickel complexes and alkali cations in 98:2 toluene/diethyl ether is fast on the NMR time scale, which supports our proposed dynamic switching mechanism.
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Affiliation(s)
- Thi V Tran
- Department of Chemistry, University of Houston, 4800 Calhoun Road, Houston, Texas 77004, United States
| | - Eryn Lee
- Department of Chemistry, University of Houston, 4800 Calhoun Road, Houston, Texas 77004, United States
| | - Yennie H Nguyen
- Department of Chemistry, University of Houston, 4800 Calhoun Road, Houston, Texas 77004, United States
| | - Hieu D Nguyen
- Department of Chemistry, University of Houston, 4800 Calhoun Road, Houston, Texas 77004, United States
| | - Loi H Do
- Department of Chemistry, University of Houston, 4800 Calhoun Road, Houston, Texas 77004, United States
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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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Apilardmongkol P, Ratanasak M, Hasegawa JY, Parasuk V. Exploring the Reaction Mechanism of Heterobimetallic Nickel‐Alkali Catalysts for Ethylene Polymerization: Secondary‐Metal‐Ligand Cooperative Catalysis. ChemCatChem 2022. [DOI: 10.1002/cctc.202200028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pavee Apilardmongkol
- Chulalongkorn University Faculty of Science Chemistry Pathumwan 10330 Bangkok THAILAND
| | - Manussada Ratanasak
- Hokkaido University Catalysis Theory Research Division, Institute for Catalysis Kita21, Nishi10, Kita-ku, Sapporo, Hokkaido, Japan, 001-0021 001-0021 Sapporo JAPAN
| | - Jun-ya Hasegawa
- Hokkaido University: Hokkaido Daigaku Institute for Catalysis Kita21, Nishi10, Kita-ku, Sapporo 001-0021 Sappporo JAPAN
| | - Vudhichai Parasuk
- Chulalongkorn University Faculty of Science Chemistry Pathumwan 10330 Bangkok THAILAND
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Wang Y, Hu X, Mu H, Xia Y, Chi Y, Jian Z. Enhancement on Nickel-Mediated Ethylene Polymerization by Concerted Steric Hindrance and Fluorine Effect. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22020066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yu F, Li P, Xu M, Xu G, Na Y, Zhang S, Wang F, Tan C. Iminopyridyl ligands bearing polyethylene glycol unit for nickel catalyzed ethylene polymerization. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ma X, Zhang Y, Jian Z. Tunable branching and living character in ethylene polymerization using “polyethylene glycol sandwich” α-diimine nickel catalysts. Polym Chem 2021. [DOI: 10.1039/d0py01689f] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The key effects of polyethylene glycol units as a unique secondary coordination sphere in α-diimine Ni(ii)-mediated ethylene polymerization are comprehensively disclosed.
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Affiliation(s)
- Xin Ma
- 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
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12
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Doerr AM, Burroughs JM, Gitter SR, Yang X, Boydston AJ, Long BK. Advances in Polymerizations Modulated by External Stimuli. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03802] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Alicia M. Doerr
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600, United States
| | - Justin M. Burroughs
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600, United States
| | - Sean R. Gitter
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Xuejin Yang
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Andrew J. Boydston
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- Department of Chemical and Biological Engineering and Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Brian K. Long
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600, United States
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Tran TV, Karas LJ, Wu JI, Do LH. Elucidating Secondary Metal Cation Effects on Nickel Olefin Polymerization Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02949] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Thi V. Tran
- Department of Chemistry, University of Houston, 4800 Calhoun Rd., Houston, Texas 77204, United States
| | - Lucas J. Karas
- Department of Chemistry, University of Houston, 4800 Calhoun Rd., Houston, Texas 77204, United States
| | - Judy I. Wu
- Department of Chemistry, University of Houston, 4800 Calhoun Rd., Houston, Texas 77204, United States
| | - Loi H. Do
- Department of Chemistry, University of Houston, 4800 Calhoun Rd., Houston, Texas 77204, United States
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Zhang Y, Jian Z. 2-Phosphine-pyridine-N-oxide palladium and nickel catalysts for ethylene polymerization and copolymerization with polar monomers. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122410] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Xu M, Yu F, Li P, Xu G, Zhang S, Wang F. Enhancing Chain Initiation Efficiency in the Cationic Allyl-Nickel Catalyzed (Co)Polymerization of Ethylene and Methyl Acrylate. Inorg Chem 2020; 59:4475-4482. [DOI: 10.1021/acs.inorgchem.9b03647] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mengli Xu
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Fan Yu
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Pei Li
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Guoyong 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
| | - Fuzhou Wang
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
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16
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Zhang Y, Zhang Y, Chi Y, Jian Z. Influence of initiating groups on phosphino-phenolate nickel catalyzed ethylene (co)polymerization. Dalton Trans 2020; 49:2636-2644. [DOI: 10.1039/c9dt04482e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The influence of initiating groups on late transition metal catalyzed ethylene (co)polymerization was comprehensively studied for the first time.
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Affiliation(s)
- Yue Zhang
- College of Chemical Engineering
- Advanced Institute of Materials Science
- Changchun University of Technology
- Changchun
- China
| | - Yixin Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Yue Chi
- Key Laboratory of Advanced Structural Materials of Ministry of Education
- College of Material Science and Engineering
- Changchun University of Technology
- Changchun 130012
- China
| | - Zhongbao Jian
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
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17
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Xiao D, Cai Z, Do LH. Accelerating ethylene polymerization using secondary metal ions in tetrahydrofuran. Dalton Trans 2019; 48:17887-17897. [DOI: 10.1039/c9dt04288a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A variety of metal cations are capable of enhancing the ethylene polymerization rates of nickel phosphine phosphonate-polyethylene glycol catalysts.
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Affiliation(s)
- Dawei Xiao
- Department of Chemistry
- University of Houston
- Houston
- USA
| | | | - Loi H. Do
- Department of Chemistry
- University of Houston
- Houston
- USA
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