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Ajala OA, Ono M, Nakayama Y, Tanaka R, Shiono T. Copolymerization of Ethylene with Functionalized 1,1-Disubstituted Olefins Using a Fluorenylamido-Ligated Titanium Catalyst. Polymers (Basel) 2024; 16:236. [PMID: 38257035 PMCID: PMC10818569 DOI: 10.3390/polym16020236] [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: 12/16/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Considering the sustainability of material development, coordination polymerization catalysts effective for 1,1-disubstituted olefins are receiving a great deal of attention because they can introduce a variety of plant-derived comonomers, such as β-pinene and limonene, into polyolefins. However, due to their sterically encumbered property, incorporating these monomers is difficult. Herein, we succeeded in the copolymerization of ethylene with various hydroxy- or siloxy-substituted vinylidenes using a fluorenylamido-ligated titanium catalyst-MMAO system. This is the first example of ethylene/polar 1,1-disubstituted olefins' copolymerization using an early transition metal catalyst system. The polymerization proceeded at room temperature without pressurizing ethylene, and high-molecular-weight, functionalized polyethylene was obtained. The obtained copolymer showed a reduced water contact angle compared with that of the ethylene/isobutene copolymer, demonstrating the increment in hydrophilicity by hydroxy groups.
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Affiliation(s)
| | | | | | | | - Takeshi Shiono
- Graduate School of Advanced Science and Engineering, Hiroshima University, Kagamiyama 1-4-1, Higashihiroshima 739-8527, Japan; (O.A.A.); (Y.N.); (R.T.)
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2
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An J, Ishii A, Nakata N. Niobium Complexes Supported by Chalcogen-Bridged [OEO]-Type Bis(phenolate) Ligands (E = S, Se): Synthesis, Characterization, and Phenylacetylene Polymerization. Molecules 2023; 28:molecules28062573. [PMID: 36985545 PMCID: PMC10056720 DOI: 10.3390/molecules28062573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 03/14/2023] Open
Abstract
Trichloro niobium(V) complexes 3 and 4 with the sulfur- or selenium-bridged [OEO]-type bis(phenolate) ligands (E = S, Se) were synthesized and fully characterized on the basis of their NMR spectroscopic data and X-ray crystallographic analysis. In the crystalline state of 4, the [OSeO]-core of the ligand was coordinated to the niobium center in a fac-fashion. The corresponding tribenzyl niobium(V) complexes 5 and 6 were also prepared by the reactions of 3 and 4 with 3 equivalents of PhCH2MgCl in toluene. The X-ray diffraction analysis of 6 revealed that the distorted six-coordinated niobium center incorporated in the [OSeO]-type ligand took a mer-fashion, and one benzyl ligand was coordinated to the niobium center by η2-fashion. Complexes 5 and 6 were tested for the phenylacetylene polymerization that produced poly(phenylacetylene)s (PPAs), oligomers, and triphenylbenzenes (TPBs) depending on the chalcogen atom in the [OEO]-type ligand.
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3
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Zhao Y, Li H, Xin S, Li H, Luo Y, He S. DFT Studies on the Early-Transition-Metal-Catalyzed Polymerization of Polar Monomers with a Methylene Spacer between Vinyl and Functional Groups. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00323] [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)
- Yanan Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Huashu Li
- PetroChina Petrochemical Research Institute, Beijing 102206, China
| | - Shixuan Xin
- PetroChina Petrochemical Research Institute, Beijing 102206, China
| | - Hao Li
- PetroChina Petrochemical Research Institute, Beijing 102206, China
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- PetroChina Petrochemical Research Institute, Beijing 102206, China
| | - Shengbao He
- PetroChina Petrochemical Research Institute, Beijing 102206, China
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4
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Paradiso V, Capaccio V, Lamparelli DH, Capacchione C. [OSSO]-bisphenolate metal complexes: A powerful and versatile tool in polymerization catalysis. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213644] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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5
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Carbazolyl-Substituted [OSSO]-Type Zirconium(IV) Complex as a Precatalyst for the Oligomerization and Polymerization of α-Olefins. Catalysts 2019. [DOI: 10.3390/catal9060528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The dibenzyl zirconium(IV) complex (4) incorporating with a carbazolyl(Cbz)-substituted [OSSO]-type bis(phenolate) ligand was synthesized. Upon activation with dried modified methylaluminoxane (dMMAO), precatalyst 4 at relatively low catalyst loadings was found to promote the 1,2-regioselective oligomerization of 1-hexene to produce the corresponding vinylidene-ended oligomers with moderate turnover frequencies (TOFs) up to 2080 h−1. The 13C NMR analysis of the resulting oligomers revealed the formation of dimer-enriched oligo(1-hexene)s in 39–62% distributions. The precatalyst 4 with dried methylaluminoxane (dMAO) also exhibited good performance in the polymerization of styrene yielding isotactic polystyrenes ([mm] > 99%) with quite large molecular weights (Mw < 508,100 g mol−1) and relatively high catalytic activity (up to 2810 g mmol(4)−1 h−1).
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6
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Chai Y, Wang L, Liu D, Wang Z, Run M, Cui D. Polar‐Group Activated Isospecific Coordination Polymerization of
ortho
‐Methoxystyrene: Effects of Central Metals and Ligands. Chemistry 2019; 25:2043-2050. [DOI: 10.1002/chem.201805012] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/19/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Yunjie Chai
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
- College of Chemistry and Environmental ScienceHebei University Baoding 071002 China
| | - Lingfang Wang
- School of Materials EngineeringYancheng Institute of Technology Yancheng 224051 China
| | - Dongtao Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Zichuan Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Mingtao Run
- College of Chemistry and Environmental ScienceHebei University Baoding 071002 China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
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7
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Zhu Y, Li S, Liang H, Xie X, Zhu F. Titanium complex with an [OSSO]-type bis(phenolate) ligand for ethylene copolymerization with vinyl polar monomer based on group protection. RSC Adv 2019; 9:26582-26587. [PMID: 35528581 PMCID: PMC9070498 DOI: 10.1039/c9ra06271h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 08/13/2019] [Indexed: 11/21/2022] Open
Abstract
The [OSSO]-type bis(phenolate) titanium complex 1 activated by methylaluminoxane (MAO) was tested as a homogeneous catalyst for ethylene coordination copolymerization with protected vinyl polar monomer of p-tert-butyl-dimethylsilyloxystyrene (p-TBDMSOS). The results showed that the active species were almost not poisonous to the catalyst by the protected vinyl polar monomer. Moreover, the composition and sequence length as well as sequence distribution in the copolymers were investigated by theoretical calculation and 13C nuclear magnetic resonance (13C NMR) characterization. Especially, the incorporation ratio of p-TBDMSOS into the polyethylene chain could be controlled by changing p-TBDMSOS concentration in the feed. Interestingly, an approximate alternating copolymer of poly(E-alt-(p-TBDMSOS)) could be formed when the p-TBDMSOS feed concentration increased to 1.0 mol L−1. Subsequently, the poly(ethylene-co-(p-hydroxystyrene)) (poly(E-co-(p-HOS))) could be prepared by a facile deprotection in terms of desilylation of tert-butyldimethylsilyl ether. The hydrophilicity of poly(E-co-(p-HOS)) films were investigated by water contact angle measurements. The [OSSO]-type bis(phenolate) titanium complex 1 activated by methylaluminoxane was used for the copolymerization of ethylene and protected vinyl polar monomer.![]()
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Affiliation(s)
- Yuqiong Zhu
- GDHPPC Lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- China
| | - Sihan Li
- GDHPPC Lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- China
| | - Huaqing Liang
- GDHPPC Lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- China
| | - Xiuli Xie
- GDHPPC Lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- China
| | - Fangming Zhu
- GDHPPC Lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- China
- Key Lab for Polymer Composite and Functional Materials of Ministry of Education
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8
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Zhao Y, Luo G, Wang X, Kang X, Cui D, Hou Z, Luo Y. DFT Studies on the Polymerization of Functionalized Styrenes Catalyzed by Rare-Earth-Metal Complexes: Factors Affecting C–H Activation Relevant to Step-Growth Polymerization. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00532] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yanan Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Gen Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xingbao Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiaohui Kang
- College of Pharmacy, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zhaomin Hou
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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9
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Nakata N, Nakamura K, Ishii A. Highly Efficient and 1,2-Regioselective Method for the Oligomerization of 1-Hexene Promoted by Zirconium Precatalysts with [OSSO]-Type Bis(phenolate) Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00411] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Norio Nakata
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Kazuaki Nakamura
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Akihiko Ishii
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
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10
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Ishii A, Ikuma K, Nakata N, Nakamura K, Kuribayashi H, Takaoki K. Zirconium and Hafnium Complexes with Cycloheptane- or Cyclononane-Fused [OSSO]-Type Bis(phenolato) Ligands: Synthesis, Structure, and Highly Active 1-Hexene Polymerization and Ring-Size Effects of Fused Cycloalkanes on the Activity. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00586] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akihiko Ishii
- Department
of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Keita Ikuma
- Department
of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Norio Nakata
- Department
of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Kazuaki Nakamura
- Department
of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Hiroshi Kuribayashi
- Petrochemical
Research Laboratory, Sumitomo Chemical Co., Ltd., 2-1 Kitasode, Sodegaura, Chiba 299-0295, Japan
| | - Kazuo Takaoki
- Petrochemical
Research Laboratory, Sumitomo Chemical Co., Ltd., 2-1 Kitasode, Sodegaura, Chiba 299-0295, Japan
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11
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Wang C, Luo G, Nishiura M, Song G, Yamamoto A, Luo Y, Hou Z. Heteroatom-assisted olefin polymerization by rare-earth metal catalysts. SCIENCE ADVANCES 2017; 3:e1701011. [PMID: 28776037 PMCID: PMC5521993 DOI: 10.1126/sciadv.1701011] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 06/15/2017] [Indexed: 06/07/2023]
Abstract
Heteroatom-functionalized polyolefins are of fundamental interest and practical importance. This has spurred investigations of the copolymerization of polar and nonpolar olefins. We report the first syndiospecific polymerization of a series of heteroatom-containing α-olefins and their copolymerization with ethylene catalyzed by half-sandwich rare-earth complexes. We have found that the interaction between a heteroatom in a functional α-olefin monomer and a rare-earth metal catalyst can significantly raise the olefin polymerization activity and thereby promote its copolymerization with ethylene. By using this heteroatom-assisted olefin polymerization (HOP) strategy, we have successfully synthesized a series of heteroatom (O, S, Se, N, and P)-functionalized polyolefins with high molecular weights and controllable functional monomer contents. The mechanistic aspect of the HOP process has been elucidated by computational studies. We expect that our findings will guide the design of new catalyst systems for the synthesis of various desired functional polyolefins.
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Affiliation(s)
- Chunxiang Wang
- Center for Sustainable Resource Science and Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Gen Luo
- Center for Sustainable Resource Science and Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Center for Sustainable Resource Science and Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Guoyong Song
- Center for Sustainable Resource Science and Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Atsushi Yamamoto
- Center for Sustainable Resource Science and Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhaomin Hou
- Center for Sustainable Resource Science and Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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12
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Wei J, Riffel MN, Diaconescu PL. Redox Control of Aluminum Ring-Opening Polymerization: A Combined Experimental and DFT Investigation. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02402] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Junnian Wei
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, 607 Charles
E. Young Drive East, Los Angeles, California 90095, United States
| | - Madeline N. Riffel
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, 607 Charles
E. Young Drive East, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, 607 Charles
E. Young Drive East, Los Angeles, California 90095, United States
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13
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Nakata N, Watanabe T, Toda T, Ishii A. Enantio- and Stereoselective Cyclopolymerization of Hexa-1,5-diene Catalyzed by Zirconium Complexes Possessing Optically Active Bis(phenolato) Ligands. Macromol Rapid Commun 2016; 37:1820-1824. [DOI: 10.1002/marc.201600351] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 07/15/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Norio Nakata
- Department of Chemistry; Graduate School of Science and Engineering; Saitama University; Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Takanori Watanabe
- Department of Chemistry; Graduate School of Science and Engineering; Saitama University; Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Tomoyuki Toda
- Department of Chemistry; Graduate School of Science and Engineering; Saitama University; Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Akihiko Ishii
- Department of Chemistry; Graduate School of Science and Engineering; Saitama University; Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
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