1
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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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2
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Lu Z, Chang G, Wang H, Jing K, Dai S. A Dual Steric Enhancement Strategy in α-Diimine Nickel and Palladium Catalysts for Ethylene Polymerization and Copolymerization. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00568] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhou Lu
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Guanru Chang
- School of Chemistry and Chemical Engineering, Key Laboratory of Inorganic Functional Material, Huangshan University, Huangshan, Anhui 245041, People’s Republic of China
| | - Hui Wang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People’s Republic of China
| | - Kun Jing
- Nanjing Research Institute of Yangzi Petrochemical Co., Ltd., SINOPEC, Nanjing, Jiangsu 210048, People’s Republic of China
| | - Shengyu Dai
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, Anhui 230601, People’s Republic of China
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People’s Republic of China
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3
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Nazarov IV, Bermesheva EV, Potapov KV, Khesina ZB, Il'in MM, Melnikova EK, Bermeshev MV. Palladium complex with tetrahydronaphthyl-substituted diimine ligand as a catalyst for polymerization of norbornenes and diazoacetates. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.09.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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A disubstituted-norbornene-based comonomer strategy to address polar monomer problem. Sci Bull (Beijing) 2021; 66:1429-1436. [PMID: 36654369 DOI: 10.1016/j.scib.2021.03.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/24/2021] [Accepted: 02/24/2021] [Indexed: 01/20/2023]
Abstract
The transition-metal-catalyzed copolymerization of olefins with polar comonomers is a direct strategy to access polar-functionalized polyolefins in an economical manner. Due to the intrinsic poisoning effect of polar groups towards Lewis acidic metal centers and the drastic reactivity differences of polar comonomers versus non-polar olefins, it is challenging to develop catalysts that provide the desired polymer molecular weight, comonomer incorporation, and activity. In this contribution, we tackle this issue from a comonomer perspective using 5,6-disubstituted norbornenes, which are highly versatile, easily accessible, inexpensive, and capable of introducing two functional groups in a single insertion. More importantly, they are only mildly poisoning due to the presence of long spacers between double bonds and polar groups, and are not prone to β-hydride elimination due to their cyclic structures. As strong π-donors, they can competitively bind to metal centers versus olefins. Indeed, phosphine-sulfonate palladium catalysts can catalyze the copolymerization of ethylene with 5,6-disubstituted norbornenes and simultaneously achieve a high polymerization activity, copolymer molecular weight, and comonomer incorporation. The practicality of this system was demonstrated by studying the properties of the resulting polymers, copolymerization in hydrocarbon solvents or in bulk, recovery/utilization of unreacted comonomer, molecular weight modulation, and large-scale synthesis.
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5
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6
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Zanchin G, Leone G. Polyolefin thermoplastic elastomers from polymerization catalysis: Advantages, pitfalls and future challenges. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2020.101342] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels. MATERIALS 2021; 14:ma14010186. [PMID: 33401706 PMCID: PMC7795248 DOI: 10.3390/ma14010186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/24/2020] [Accepted: 12/28/2020] [Indexed: 11/26/2022]
Abstract
Hemicellulose-based composite hydrogels were successfully prepared by adding polydopamine (PDA) microspheres as reinforcing agents. The effects of PDA microsphere size, dosage, and nitrogen content in hydrogel on the mechanical and rheological properties was studied. The compressive strength of hydrogel was increased from 0.11 to 0.30 MPa. The storage modulus G’ was increased from 7.9 to 22.0 KPa. The gaps in the hemicellulose network are filled with PDA microspheres. There is also chemical cross-linking between them. These gaps increased the density of the hydrogel network structure. It also has good water retention and pH sensitivity. The maximum cumulative release rate of methylene blue was 62.82%. The results showed that the release behavior of hydrogel was pH-responsive, which was beneficial to realizing targeted and controlling drug release.
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8
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Saki Z, D’Auria I, Dall’Anese A, Milani B, Pellecchia C. Copolymerization of Ethylene and Methyl Acrylate by Pyridylimino Ni(II) Catalysts Affording Hyperbranched Poly(ethylene- co-methyl acrylate)s with Tunable Structures of the Ester Groups. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01703] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zeinab Saki
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Ilaria D’Auria
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Anna Dall’Anese
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Barbara Milani
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Claudio Pellecchia
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
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9
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Hu X, Wang C, Jian Z. Comprehensive studies of the ligand electronic effect on unsymmetrical α-diimine nickel(ii) promoted ethylene (co)polymerizations. Polym Chem 2020. [DOI: 10.1039/d0py00536c] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The ligand electronic effects on the horizontal axis and vertical axis are systematically disclosed in unsymmetrical α-diimine Ni(ii)-promoted ethylene polymerization and copolymerization reactions.
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Affiliation(s)
- Xiaoqiang Hu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Chaoqun Wang
- 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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10
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Li S, Xu G, Dai S. A remote nonconjugated electron effect in insertion polymerization with α-diimine nickel and palladium species. Polym Chem 2020. [DOI: 10.1039/d0py00218f] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The remote nonconjugated electronic perturbations exert great influence on ethylene polymerization.
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Affiliation(s)
- Shuaikang Li
- Institutes of Physical Science and Information Technology
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education
- Anhui University
- Hefei
- China
| | - Guoyong Xu
- Institutes of Physical Science and Information Technology
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education
- Anhui University
- Hefei
- China
| | - Shengyu Dai
- Institutes of Physical Science and Information Technology
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education
- Anhui University
- Hefei
- China
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11
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Affiliation(s)
- Dylan J. Walsh
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Michael G. Hyatt
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Susannah A. Miller
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Damien Guironnet
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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12
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Effects of backbone substituent and intra-ligand hydrogen bonding interaction on ethylene polymerizations with α-diimine nickel catalysts. J Catal 2019. [DOI: 10.1016/j.jcat.2019.05.026] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Tan C, Chen C. Emerging Palladium and Nickel Catalysts for Copolymerization of Olefins with Polar Monomers. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814634] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Chen Tan
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Key Laboratory of Soft Matter ChemistryDepartment of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 China
| | - Changle Chen
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Key Laboratory of Soft Matter ChemistryDepartment of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 China
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14
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Tan C, Chen C. Emerging Palladium and Nickel Catalysts for Copolymerization of Olefins with Polar Monomers. Angew Chem Int Ed Engl 2019; 58:7192-7200. [PMID: 30719812 DOI: 10.1002/anie.201814634] [Citation(s) in RCA: 246] [Impact Index Per Article: 49.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Indexed: 01/18/2023]
Abstract
Transition-metal-catalyzed copolymerization of olefins with polar monomers represents a challenge because of the large variety of substrate-induced side reactions. However, this approach also holds the potential for the direct synthesis of polar functionalized polyolefins with unique properties. After decades of research, only a few catalyst systems have been found to be suitable for this reaction. Some major advances in catalyst development have been made in the past five years. This Minireview summarizes some of the recent progress in the extensively studied Brookhart and Drent catalyst systems, as well as emerging alternative palladium and nickel catalysts.
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Affiliation(s)
- Chen Tan
- 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
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15
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Li M, Behzadi S, Chen M, Pang W, Wang F, Tan C. Phenoxyimine Ligands Bearing Nitrogen-Containing Second Coordination Spheres for Zinc Catalyzed Stereoselective Ring-Opening Polymerization of rac-Lactide. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00788] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Min Li
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Shabnam Behzadi
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Min Chen
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Wenmin Pang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Fuzhou Wang
- Institute of Physical Science and Information Technology, Anhui University, Hefei 230026, People’s Republic of China
| | - Chen Tan
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, People’s Republic of China
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16
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Wang F, Chen C. A continuing legend: the Brookhart-type α-diimine nickel and palladium catalysts. Polym Chem 2019. [DOI: 10.1039/c9py00226j] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Here we will summarize some of the recent advances in α-diimine ligand developments, as well as some new and challenging monomers that this class of catalysts can address through these ligand improvements.
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Affiliation(s)
- Fuzhou Wang
- Institute of Physical Science and Information Technology
- Anhui University
- Hefei 230601
- Anhui
- 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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Ji L, Liu JS, Wang XY, Li JF, Chen Z, Liao S, Sun XL, Tang Y. An efficient and mild route to highly fluorinated polyolefins via copolymerization of ethylene and 5-perfluoroalkylnorbornenes. Polym Chem 2019. [DOI: 10.1039/c9py00009g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Highly efficient copolymerization of ethylene/5-(perfluoro-n-alkyl)norbornenes has been realized for the synthesis of fluorinated COC for the first time.
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Affiliation(s)
- Li Ji
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
| | - Jia-Shuai Liu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Xiao-Yan Wang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Jun-Fang Li
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Zhou Chen
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Saihu Liao
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
| | - Xiu-Li Sun
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
| | - Yong Tang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- China
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18
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Synthesis, characterization, and olefin (co)polymerization behavior of unsymmetrical α-diimine palladium complexes containing bulky substituents at 4-position of aniline moieties. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.09.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Lu N, Zheng JH, Lin LC, Liu LK, Chiang HF, Li TY, Wen YS, Yang CK, Chen SW, Thrasher JS. Studies of two different types of intramolecular C-H···F-C interactions from polyfluorinated diiodometal(II) diimine complexes. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201800161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Norman Lu
- Institute of Organic and Polymeric Materials; National Taipei University of Technology; Taipei Taiwan, Republic of China
- Department of Molecular Science and Engineering; National Taipei University of Technology; Taipei Taiwan, Republic of China
| | - Jing-Hung Zheng
- Institute of Organic and Polymeric Materials; National Taipei University of Technology; Taipei Taiwan, Republic of China
| | - Lei-Chin Lin
- Institute of Organic and Polymeric Materials; National Taipei University of Technology; Taipei Taiwan, Republic of China
- Department of Molecular Science and Engineering; National Taipei University of Technology; Taipei Taiwan, Republic of China
| | - Ling-Kang Liu
- Institute of Organic and Polymeric Materials; National Taipei University of Technology; Taipei Taiwan, Republic of China
| | - Hsing-Fang Chiang
- Institute of Organic and Polymeric Materials; National Taipei University of Technology; Taipei Taiwan, Republic of China
| | - Ting-You Li
- Department of Molecular Science and Engineering; National Taipei University of Technology; Taipei Taiwan, Republic of China
- Department of Chemistry, Advanced Materials Research Laboratory; Clemson University; Anderson South Carolina
| | - Yuh-Sheng Wen
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
| | - Chung-Kuang Yang
- Department of Chemical Engineering and Biotechnology; National Taipei University of Technology; Taipei Taiwan, Republic of China
| | - Shih-Wen Chen
- Department of Chemical Engineering and Biotechnology; National Taipei University of Technology; Taipei Taiwan, Republic of China
| | - Joseph S. Thrasher
- Department of Chemistry, Advanced Materials Research Laboratory; Clemson University; Anderson South Carolina
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20
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Guo L, Lian K, Kong W, Xu S, Jiang G, Dai S. Synthesis of Various Branched Ultra-High-Molecular-Weight Polyethylenes Using Sterically Hindered Acenaphthene-Based α-Diimine Ni(II) Catalysts. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00275] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lihua Guo
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Kunbo Lian
- Chinese Academy of Science Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wenyu Kong
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Shuai Xu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Guorun Jiang
- Chinese Academy of Science Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Shengyu Dai
- Chinese Academy of Science 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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21
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Wang F, Li R, Tian S, Lian K, Guo D, Li W. Synthesis of highly branched polyethylene using para
-phenyl-substituted α-diimine nickel catalysts. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4298] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fuzhou Wang
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 China
- Graduate School of Engineering; Hiroshima University; Higashi-Hiroshima 739-8527 Japan
| | - Ruiping Li
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 China
| | - Susu Tian
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 China
| | - Kunbo Lian
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 China
| | - Dengfeng Guo
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 China
| | - Weimin Li
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 China
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22
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Wang J, Wang L, Yu H, Ullah RS, Haroon M, Zain‐ul‐Abdin, Xia X, Khan RU. Recent Progress in Ethylene Polymerization Catalyzed by Ni and Pd Catalysts. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701336] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jun Wang
- State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou China
| | - Li Wang
- State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou China
| | - Raja Summe Ullah
- State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou China
| | - Muhammad Haroon
- State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou China
| | - Zain‐ul‐Abdin
- State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou China
| | - Xia Xia
- State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou China
| | - Rizwan Ullah Khan
- State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou China
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23
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Rong C, Wang F, Li W, Chen M. Ethylene Polymerization by Dinuclear Xanthene-Bridged Imino- and Aminopyridyl Nickel Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00698] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Chunyong Rong
- Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center,
School of Pertrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Fuzhou Wang
- Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center,
School of Pertrochemical Engineering, Changzhou University, Changzhou 213164, China
- Graduate
School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Weimin Li
- Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center,
School of Pertrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Min Chen
- Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center,
School of Pertrochemical Engineering, Changzhou University, Changzhou 213164, China
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24
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Ligand steric effects on naphthyl-α-diimine nickel catalyzed α-olefin polymerization. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2038-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Wang F, Tanaka R, Cai Z, Nakayama Y, Shiono T. Living polymerization of higher 2-alkene with α-diimine nickel catalysts: Synthesis and characterization of high molecular weight poly(2-alkene)s. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.08.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Lian K, Zhu Y, Li W, Dai S, Chen C. Direct Synthesis of Thermoplastic Polyolefin Elastomers from Nickel-Catalyzed Ethylene Polymerization. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01087] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kunbo Lian
- Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center,
School of Pertrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yun Zhu
- CAS
Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation
Center of Chemistry for Energy Materials), Department of Polymer Science
and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Weimin Li
- Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center,
School of Pertrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shengyu Dai
- Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center,
School of Pertrochemical Engineering, Changzhou University, Changzhou 213164, China
- CAS
Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation
Center of Chemistry for Energy Materials), 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, iChEM (Collaborative Innovation
Center of Chemistry for Energy Materials), Department of Polymer Science
and Engineering, University of Science and Technology of China, Hefei 230026, China
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27
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Ye J, Ye Z. "Living" Polymerization of Ethylene and 1-Hexene Using Novel Binuclear Pd⁻Diimine Catalysts. Polymers (Basel) 2017; 9:polym9070282. [PMID: 30970960 PMCID: PMC6432338 DOI: 10.3390/polym9070282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/12/2017] [Accepted: 07/14/2017] [Indexed: 11/16/2022] Open
Abstract
We report the synthesis of two novel binuclear Pd–diimine catalysts and their unique behaviors in initiating “living” polymerization of ethylene and 1-hexene. These two binuclear catalysts, [(N^N)Pd(CH2)3C(O)O(CH2)mO(O)C(CH2)3Pd(N^N)](SbF6)2 (3a: m = 4, 3b: m = 6) (N^N≡ArN=C(Me)–(Me)C=NAr, Ar≡2,6–(iPr)2C6H3), were synthesized by simply reacting [(N^N)Pd(CH3)(N≡CMe)]SbF6 (1) with diacrylates, 1,4-butanediol diacrylate and 1,6-hexanediol diacrylate, respectively. Their unique binuclear structure with two identical Pd–diimine acrylate chelates covalently linked together through an ester linkage was confirmed by NMR and single crystal XRD measurements. Ethylene “living” polymerizations were carried out at 5 °C and under ethylene pressure of 400 and 100 psi, respectively, with the binuclear catalysts, along with a mononuclear chelate catalyst, [(N^N)Pd(CH2)3C(O)OMe]SbF6 (2), for comparison. All the polyethylenes produced with both binuclear catalysts show bimodal molecular weight distribution with the number-average molecular weight of the higher molecular weight portion being approximately twice that of the lower molecular weight portion. The results demonstrate the presence of monofunctional chain growing species resembling catalyst 2, in addition to the expected bifunctional species leading to bifunctional “living” polymerization, in the polymerization systems. Both types of chain growing species exhibit “living” characteristics under the studied conditions, leading to the simultaneous linear increase of molecular weight in both portions. However, when applied for the “living” polymerization of 1-hexene, the binuclear catalyst 3a leads to polymers with only monomodal molecular weight distribution, indicating the sole presence of monofunctional chain growing species. These two binuclear catalysts are the first Pd–diimine catalysts capable of initiating bifunctional ethylene “living” polymerization.
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Affiliation(s)
- Jianding Ye
- Bharti School of Engineering, Laurentian University, Sudbury, ON P3E 2C6, Canada
| | - Zhibin Ye
- Bharti School of Engineering, Laurentian University, Sudbury, ON P3E 2C6, Canada.
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Ahmadjo S, Damavandi S, Zohuri GH, Sandaroos R. Comparative ethylene polymerization via imino-quinolinol catalysts. POLYMER SCIENCE SERIES B 2017. [DOI: 10.1134/s1560090417040029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Liang T, Chen C. Side-Arm Control in Phosphine-Sulfonate Palladium- and Nickel-Catalyzed Ethylene Polymerization and Copolymerization. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00294] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tao Liang
- CAS Key Laboratory of Soft
Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry
for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Changle Chen
- CAS Key Laboratory of Soft
Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry
for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, People’s Republic of China
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30
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Yang B, Pang W, Chen M. Redox Control in Olefin Polymerization Catalysis by Phosphine–Sulfonate Palladium and Nickel Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700214] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bangpei Yang
- Department of Polymer Science and Engineering University of Science and Technology of China 230026 Hefei China
| | - Wenmin Pang
- Department of Polymer Science and Engineering University of Science and Technology of China 230026 Hefei China
| | - Min Chen
- Department of Polymer Science and Engineering University of Science and Technology of China 230026 Hefei China
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31
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Wu Z, Hong C, Du H, Pang W, Chen C. Influence of Ligand Backbone Structure and Connectivity on the Properties of Phosphine-Sulfonate Pd(II)/Ni(II) Catalysts. Polymers (Basel) 2017; 9:E168. [PMID: 30970848 PMCID: PMC6431890 DOI: 10.3390/polym9050168] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 04/28/2017] [Accepted: 05/03/2017] [Indexed: 02/05/2023] Open
Abstract
Phosphine-sulfonate based palladium and nickel catalysts have been extensively studied in ethylene polymerization and copolymerization reactions. Previously, the majority of the research works focused on the modifications of the substituents on the phosphorous atom. In this contribution, we systematically demonstrated that the change of the ligand backbone from benzene to naphthalene could greatly improve the properties of this class of catalysts. In the palladium system, this change could increase catalyst stability and polyethylene molecular weights. In the nickel system, this change could dramatically increase the polyethylene molecular weights. Most interestingly, the change in the connectivity of phosphine and sulfonate moieties to the naphthalene backbone could also significantly influence the catalyst properties.
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Affiliation(s)
- Zixia Wu
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Changwen Hong
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Hongxu Du
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Wenmin Pang
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Changle Chen
- Chinese Academy of Sciences 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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32
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Li W, Guo L, Li W. Anilinotropone nickel catalyzed tandem ethylene oligomerization and Friedel-Crafts addition to toluene. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2016.12.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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33
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Zhang D, Pang W, Chen C. Sidearm effect on the (Pyrrolylaldiminato)aluminum initiated ring opening polymerization of ε-caprolactone. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.03.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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34
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Ring opening polymerization of ε-caprolactone using sterically bulky salicylaldimine Zn complexes. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2040-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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35
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Guo L, Zou C, Dai S, Chen C. Direct Synthesis of Branched Carboxylic Acid Functionalized Poly(1-octene) by α-Diimine Palladium Catalysts. Polymers (Basel) 2017; 9:E122. [PMID: 30970801 PMCID: PMC6432235 DOI: 10.3390/polym9040122] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 02/07/2023] Open
Abstract
In this work, we studied propylene polymerization using some α-diimine palladium catalysts with systematically varied ligand sterics. In propylene polymerization, the ligand steric effect exhibits significant variations on the catalytic activity, polymer molecular weight, and branching density. However, the regio control for the polymer microstructure is poor. Furthermore, copolymerization of 1-octene with the highly challenging and biorenewable comonomer acrylic acid was investigated. High copolymer molecular weights and high comonomer incorporation ratios could be achieved in this system. This study provides a novel access for the direct synthesis of branched carboxylic acid functionalized polyolefins.
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Affiliation(s)
- Lihua Guo
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
| | - Chen Zou
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Shengyu Dai
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Changle Chen
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
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36
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Ma Z, Yang W, Sun WH. Recent Progress on Transition Metal (Fe, Co, Ni, Ti and V) Complex Catalysts in Olefin Polymerization with High Thermal Stability. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600720] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhifeng Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Wenhong Yang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
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37
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Na Y, Wang X, Lian K, Zhu Y, Li W, Luo Y, Chen C. Dinuclear α-Diimine NiIIand PdIIComplexes that Catalyze Ethylene Polymerization and Copolymerization. ChemCatChem 2017. [DOI: 10.1002/cctc.201601500] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yinna Na
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative, Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 China
| | - Xingbao Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering; Dalian University of Technology; Dalian 116024 P.R. China
| | - Kunbo Lian
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 China
| | - Yun Zhu
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative, Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 China
| | - Weimin Li
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 China
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering; Dalian University of Technology; Dalian 116024 P.R. China
| | - Changle Chen
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative, Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 China
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38
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Ji P, Guo L, Hu X, Li W. Ethylene polymerization by salicylaldimine Nickel(II) complexes derived from arylnaphthylamine. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1190-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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39
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Zeng Y, Mahmood Q, Liang T, Sun WH. (Co-)polymerization of methylacrylate with NBE/1-hexene by (8-arylimino-5,6,7-trihydroquinolyl)(methyl)palladium chlorides: an approaching mechanism and the polymeric microstructures. NEW J CHEM 2017. [DOI: 10.1039/c6nj04019e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The title complexes exhibited a good polymerization performance for MA monomer homopolymerization and copolymerization with either norbornene or 1-hexene as a non-polar monomer affording good co-monomer insertion.
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Affiliation(s)
- Yanning Zeng
- Key Laboratory of Engineering Plastics
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Qaiser Mahmood
- Key Laboratory of Engineering Plastics
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Tongling Liang
- Key Laboratory of Engineering Plastics
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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40
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Zou W, Pang W, Chen C. Redox control in palladium catalyzed norbornene and alkyne polymerization. Inorg Chem Front 2017. [DOI: 10.1039/c6qi00562d] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Switchable polymerization of norbornene, 5-norbornene-2-yl acetate and 1-chloro-1-octyne could be realized by using two palladium complexes (NHC)Pd(allyl)Cl (NHC = 1,3-Ar2-naphthoquinimidazolylidene, Ar = 2,6-Me2-C6H3, 2,6-iPr2-C6H3) bearing a redox-active naphthoquinone moiety.
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Affiliation(s)
- Wenping Zou
- CAS Key Laboratory of Soft Matter Chemistry
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
| | - Wenmin Pang
- CAS Key Laboratory of Soft Matter Chemistry
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
| | - Changle Chen
- CAS Key Laboratory of Soft Matter Chemistry
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
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41
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He X, Deng Y, Jiang X, Wang Z, Yang Y, Han Z, Chen D. Copolymerization of norbornene and butyl methacrylate at elevated temperatures by a single centre nickel catalyst bearing bulky bis(α-diimine) ligand with strong electron-withdrawing groups. Polym Chem 2017. [DOI: 10.1039/c7py00081b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(α-diimine) single nickel(ii) catalyst with strong electron-withdrawing group was applied to catalyze polymerization and copolymerization of norbornene and butyl methacrylate.
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Affiliation(s)
- Xiaohui He
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Yingjiao Deng
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Xiong Jiang
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Zijie Wang
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Yingping Yang
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Zhilong Han
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Defu Chen
- School of Civil Engineering and Architecture
- Nanchang University
- Nanchang 330031
- China
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42
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Sun J, Wang F, Li W, Chen M. Ligand steric effects on α-diimine nickel catalyzed ethylene and 1-hexene polymerization. RSC Adv 2017. [DOI: 10.1039/c7ra11783c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
α-Diimine nickel complexes with systematically varied ligand sterics were used as a precatalyst for ethylene and 1-hexene polymerizations. The catalytic activities, molecular weights and branching densities could be tuned over a very wide range.
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Affiliation(s)
- Jinlong Sun
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Fuzhou Wang
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Weimin Li
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Min Chen
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- China
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43
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Guo L, Jing X, Xiong S, Liu W, Liu Y, Liu Z, Chen C. Influences of Alkyl and Aryl Substituents on Iminopyridine Fe(II)- and Co(II)-Catalyzed Isoprene Polymerization. Polymers (Basel) 2016; 8:E389. [PMID: 30974663 PMCID: PMC6432129 DOI: 10.3390/polym8110389] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 10/18/2016] [Accepted: 10/28/2016] [Indexed: 11/17/2022] Open
Abstract
A series of alkyl- and aryl-substituted iminopyridine Fe(II) complexes 1a⁻7a and Co(II) complexes 2b, 3b, 5b, and 6b were synthesized. The activator effect, influence of temperature, and, particularly, the alkyl and aryl substituents' effect on catalytic activity, polymer molecular weight, and regio-/stereoselectivity were investigated when these complexes were applied in isoprene polymerization. All of the Fe(II) complexes afforded polyisoprene with high molecular weight and moderate cis-1,4 selectivity. In contrast, the Co(II) complexes produced polymers with low molecular weight and relatively high cis-1,4 selectivity. In the iminopyridine Fe(II) system, the alkyl and aryl substituents' effect exhibits significant variation on the isoprene polymerization. In the iminopyridine Co(II) system, there is little influence observed on isoprene polymerization by alkyl and aryl substituents.
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Affiliation(s)
- Lihua Guo
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
| | - Xinyu Jing
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
| | - Shuoyan Xiong
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Wenjing Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
| | - Yanlan Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
| | - Zhe Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
| | - Changle Chen
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
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