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Zhang YY, Yang GW, Lu C, Zhu XF, Wang Y, Wu GP. Organoboron-mediated polymerizations. Chem Soc Rev 2024; 53:3384-3456. [PMID: 38411207 DOI: 10.1039/d3cs00115f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
The scientific community has witnessed extensive developments and applications of organoboron compounds as synthetic elements and metal-free catalysts for the construction of small molecules, macromolecules, and functional materials over the last two decades. This review highlights the achievements of organoboron-mediated polymerizations in the past several decades alongside the mechanisms underlying these transformations from the standpoint of the polymerization mode. Emphasis is placed on free radical polymerization, Lewis pair polymerization, ionic (cationic and anionic) polymerization, and polyhomologation. Herein, alkylborane/O2 initiating systems mediate the radical polymerization under ambient conditions in a controlled/living manner by careful optimization of the alkylborane structure or additives; when combined with Lewis bases, the selected organoboron compounds can mediate the Lewis pair polymerization of polar monomers; the bicomponent organoboron-based Lewis pairs and bifunctional organoboron-onium catalysts catalyze ring opening (co)polymerization of cyclic monomers (with heteroallenes, such as epoxides, CO2, CO, COS, CS2, episulfides, anhydrides, and isocyanates) with well-defined structures and high reactivities; and organoboranes initiate the polyhomologation of sulfur ylides and arsonium ylides providing functional polyethylene with different topologies. The topological structures of the produced polymers via these organoboron-mediated polymerizations are also presented in this review mainly including linear polymers, block copolymers, cyclic polymers, and graft polymers. We hope the summary and understanding of how organoboron compounds mediate polymerizations can inspire chemists to apply these principles in the design of more advanced organoboron compounds, which may be beneficial for the polymer chemistry community and organometallics/organocatalysis community.
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Affiliation(s)
- Yao-Yao Zhang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, Zhejiang, China.
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Guan-Wen Yang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, Zhejiang, China.
| | - Chenjie Lu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, Zhejiang, China.
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China
| | - Xiao-Feng Zhu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, Zhejiang, China.
| | - Yuhui Wang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, Zhejiang, China.
| | - Guang-Peng Wu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, Zhejiang, China.
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2
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Gu Y, Kou X, Wang X, Li Z. Creating Remarkably Moisture- and Air-Stable Macromolecular Lewis Acid by Integrating Borane within the Polymer Chain: A Highly Active Catalyst for Homo(co)polymerization of Epoxides. Angew Chem Int Ed Engl 2024; 63:e202318645. [PMID: 38155561 DOI: 10.1002/anie.202318645] [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: 12/05/2023] [Revised: 12/26/2023] [Accepted: 12/28/2023] [Indexed: 12/30/2023]
Abstract
Borane-based Lewis acids (LA) play an indispensable role in the Lewis pair (LP) mediated polymerization. However, most borane-based LPs are moisture- and air-sensitive. Therefore, development of moisture and air-stable borane-based LP is highly desirable. To achieve this goal, the concept of "aggregation induced enlargement effects" by chemically linking multiple borane within a nanoscopic confinement was conceived to create macromolecular LA. Accordingly, an extremely moisture and air stable macromolecular borane, namely, PVP-1B featuring poly(4-vinylphenol) backbone, was constructed. The concentration of borane active site is greatly higher than average concentration due to local confinement. Therefore, an enhanced activity was observed. Moreover, the local LA aggregation effects allow its tolerance to air and large amount of chain transfer agent. Consequently, PVP-1B showed remarkable efficiency for propylene oxide (PO) polymerization at 25 °C (TOF=27900 h-1 ). Furthermore, it enables generation of well-defined telechelic poly (CHO-alt-CO2 ) diol (0.6-15.3 kg/mol) with narrow Đs via copolymerizing cyclohexene oxide and CO2 at 80 °C. This work indicates unifying multiple borane within a polymer in a macromolecular level shows superior catalytic performance than constructing binary, bi(multi)functional systems in a molecular level. This paves a new way to make functional polyethers.
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Affiliation(s)
- Yanru Gu
- College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, 266042, Qingdao, China
| | - Xinhui Kou
- Analyses and Testing Center, Qingdao University of Science and Technology, 53 Zhengzhou Road, 266042, Qingdao, China
| | - Xiaowu Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, 266042, Qingdao, China
| | - Zhibo Li
- College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, 266042, Qingdao, China
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, 266042, Qingdao, China
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, 266042, Qingdao, China
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3
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Xu CK, Yang GW, Lu C, Wu GP. A Binary Silicon-Centered Organoboron Catalyst with Superior Performance to That of Its Bifunctional Analogue. Angew Chem Int Ed Engl 2023; 62:e202312376. [PMID: 37847123 DOI: 10.1002/anie.202312376] [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: 08/23/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 10/18/2023]
Abstract
This work reported that a silicon-centered alkyl borane/ammonium salt binary (two-component) catalyst exhibits much higher activity than its bifunctional analogue (one-component) for the ring-opening polymerization of propylene oxide, showing 7.3 times the activity of its bifunctional analogue at a low catalyst loading of 0.01 mol %, and even 15.3 times the activity at an extremely low loading of 0.002 mol %. By using 19 F NMR spectroscopy, control experiments, and theoretical calculation we discovered that the central silicon atom displays appropriate electron density and a larger intramolecular cavity, which is useful to co-activate the monomer and to deliver propagating chains, thus leading to a better intramolecular synergic effect than its bifunctional analogue. A unique two-pathway initiation mode was proposed to explain the unusual high activity of the binary catalytic system. This study breaks the traditional impression of the binary Lewis acid/nucleophilic catalyst with poor activity because of the increase in entropy.
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Affiliation(s)
- Cheng-Kai Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Guan-Wen Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Chenjie Lu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China
| | - Guang-Peng Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
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4
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Xu J, Zhang P, Yuan Y, Hadjichristidis N. Elucidation of the Alternating Copolymerization Mechanism of Epoxides or Aziridines with Cyclic Anhydrides in the Presence of Halide Salts. Angew Chem Int Ed Engl 2023; 62:e202218891. [PMID: 36734167 DOI: 10.1002/anie.202218891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/27/2023] [Accepted: 02/01/2023] [Indexed: 02/04/2023]
Abstract
Organic halide salts in combination with metal or organic compound are the most common and essential catalysts in ring-opening copolymerizations (ROCOP). However, the role of organic halide salts was neglected. Here, we have uncovered the complex behavior of organic halides in ROCOP of epoxides or aziridine with cyclic anhydride. Coordination of the chain-ends to cations, electron-withdrawing effect, leaving ability of halide atoms, chain-end basicity/nucleophilicity, and terminal steric hindrance cause three types of side reactions: single-site transesterification, substitution, and elimination. Understanding the complex functions of organic halide salts in ROCOP led us to develop highly active and selective aminocyclopropenium chlorides as catalysts/initiators. Adjustable H-bonding interactions of aminocyclopropenium with propagating anions and epoxides create chain-end coordination process that generate highly reactive carboxylate and highly selective alkoxide chain-ends.
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Affiliation(s)
- Jiaxi Xu
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, Thuwal, 23955, Saudi Arabia
| | - Pengfei Zhang
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, Thuwal, 23955, Saudi Arabia
| | - Youyou Yuan
- King Abdullah University of Science and Technology (KAUST), Imaging and Characterization Core Lab, Thuwal, 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, Thuwal, 23955, Saudi Arabia
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5
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Alagi P, Gnanou Y, Feng X. Quasilinear polyglycidols by triethyborane-controlled anionic polymerization of unprotected glycidol. Chem Commun (Camb) 2023; 59:2958-2961. [PMID: 36807619 DOI: 10.1039/d3cc00153a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
In this study, quasilinear polyglycidols (PG)s with ultralow degree of branching (DB) could be synthesized through anionic polymerization of glycidol carried out in the presence of triethylborane (TEB). PGs with DB ≤ 0.10, and molar masses up to 40 kg mol-1 could be indeed obtained using mono- or trifunctional ammonium carboxylates as initiator and under slow monomer addition conditions. The synthesis of degradable PGs through ester linkages obtained by copolymerization of glycidol with anhydride is also described. PG-based amphiphilic di- and triblock quasilinear copolymers were also derived. The role played by TEB is discussed and a polymerization mechanism is proposed.
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Affiliation(s)
- Prakash Alagi
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia.
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia.
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia.
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6
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Liu Y, Lu XB. Current Challenges and Perspectives in CO 2-Based Polymers. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Affiliation(s)
- Ye Liu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China
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7
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Chen C, Gnanou Y, Feng X. Ultra-Productive Upcycling CO 2 into Polycarbonate Polyols via Borinane-Based Bifunctional Organocatalysts. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Chao Chen
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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8
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Wang XW, Hui JW, Li YT, Gu YR, Li ZB. Facile Synthesis of Polycarbonate Diol via Copolymerization of CO2 and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water. CHINESE JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1007/s10118-023-2925-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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9
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Zhang C, Geng X, Zhang X, Gnanou Y, Feng X. Alkyl Borane-Mediated Metal-Free Ring-Opening (Co)Polymerizations of Oxygenated Monomers. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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10
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One-pot construction of random, gradient and triblock copolymers from CO2, epoxides and phthalic anhydride by metal-free catalyst. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Schaefer J, Zhou H, Lee E, Lambic NS, Culcu G, Holtcamp MW, Rix FC, Lin TP. Tertiary and Quaternary Phosphonium Borane Bifunctional Catalysts for CO 2/Epoxide Copolymerization: A Mechanistic Investigation Using In Situ Raman Spectroscopy. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03843] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan Schaefer
- ExxonMobil Technology and Engineering Company, Baytown, Texas77520, United States
| | - Hua Zhou
- ExxonMobil Technology and Engineering Company, Baytown, Texas77520, United States
| | - Eryn Lee
- ExxonMobil Technology and Engineering Company, Baytown, Texas77520, United States
| | - Nikola S. Lambic
- ExxonMobil Technology and Engineering Company, Baytown, Texas77520, United States
| | - Gursu Culcu
- ExxonMobil Technology and Engineering Company, Baytown, Texas77520, United States
| | - Matthew W. Holtcamp
- ExxonMobil Technology and Engineering Company, Baytown, Texas77520, United States
| | - Francis C. Rix
- ExxonMobil Technology and Engineering Company, Baytown, Texas77520, United States
| | - Tzu-Pin Lin
- ExxonMobil Technology and Engineering Company, Baytown, Texas77520, United States
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12
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Wang J, Zhu Y, Li M, Wang Y, Wang X, Tao Y. Tug‐of‐War between Two Distinct Catalytic Sites Enables Fast and Selective Ring‐Opening Copolymerizations. Angew Chem Int Ed Engl 2022; 61:e202208525. [DOI: 10.1002/anie.202208525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Jianqun Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Yinuo Zhu
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
| | - Yanchao Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
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13
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Patil N, Gnanou Y, Feng X. Anionic Copolymerization of o-Phthalaldehyde with Epoxides: Facile Access to Degradable Polyacetals and Their Copolymers under Ambient Conditions. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Naganath Patil
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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14
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Wang J, Zhu Y, Li M, Wang Y, Wang X, Tao Y. Tug‐of‐war between Two Distinct Catalytic Sites Enables Fast and Selective Ring‐opening Copolymerizations. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208525] [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)
- Jianqun Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Yinuo Zhu
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Maosheng Li
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Yanchao Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Xianhong Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Youhua Tao
- Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials 5625 Renmin StreetChangchun中国 130022 Changchun CHINA
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15
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Yao Q, Wang Y, Zhao B, Zhu X, Luo Y, Yuan D, Yao Y. Syntheses of Heterometallic Neodymium-Zinc Complexes and Their Performance in the Copolymerization of CO 2 and Cyclohexene Oxide. Inorg Chem 2022; 61:10373-10382. [PMID: 35770739 DOI: 10.1021/acs.inorgchem.2c00920] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of Nd-Zn heterometallic complexes bearing o-phenylenediamine-bridged tris(phenolato) ligands (L) were synthesized and characterized. By tuning the backbones of ancillary tris(phenolato) ligands and initiating benzyloxy groups, a Nd-Zn heterometallic complex 12 (ClLNdZnOBnCF3) was found to be highly active for the copolymerization of CO2 and cyclohexene oxide (CHO) to produce perfect alternating poly(cyclohexene carbonate) with a high turnover frequency up to 5640 h-1 under the polymerization of 90 °C and 20 bar CO2 pressure. The kinetics study showed that CO2/CHO copolymerization catalyzed by 12 was the first order dependence of 12 and CHO concentration and the zero-order dependence of CO2 pressure. The reaction of 12 with CO2 generated a carbonate-coordinated [NdZnNd] trinuclear complex 13, which was believed to be the key intermediate to initiate CO2/CHO copolymerization. On the basis of some experiments, a plausible synergistic polymerization mechanism was proposed.
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Affiliation(s)
- Quanyou Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Yaorong Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Bei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Xuehua Zhu
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou 215009, People's Republic of China
| | - Yunjie Luo
- School of Materials Science and Chemical Engineering, Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo University, Ningbo 315211, People's Republic of China
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
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16
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Zhang H, Han G, Cheng W, Liu S, Wang X. Incorporation of
CO
2
‐polyols into ester‐based waterborne polyurethane: An effective strategy to improve overall performance. J Appl Polym Sci 2022. [DOI: 10.1002/app.52661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongming Zhang
- College of Material Science and Engineering Northeast Forestry University Harbin People's Republic of China
- Key Laboratory of Polymer Ecomaterial Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun China
| | - Guangping Han
- College of Material Science and Engineering Northeast Forestry University Harbin People's Republic of China
| | - Wanli Cheng
- College of Material Science and Engineering Northeast Forestry University Harbin People's Republic of China
| | - Shunjie Liu
- Key Laboratory of Polymer Ecomaterial Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterial Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun China
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17
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Tang J, Li M, Wang X, Tao Y. Switchable Polymerization Organocatalysis: From Monomer Mixtures to Block Copolymers. Angew Chem Int Ed Engl 2022; 61:e202115465. [PMID: 35107197 DOI: 10.1002/anie.202115465] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Indexed: 11/09/2022]
Abstract
One-pot production of sequence-controlled block copolymer from mixed monomers is a crucial but rarely reached goal. Using a switchable Lewis-pair organocatalyst, we have accomplished sequence-selective polymerization from a mixture of O-carboxyanhydride (OCA) and epoxide. Polymerization of the OCA monomer occurs first and exclusively because of its exceedingly high polymerizability. When OCA is fully consumed, alternating copolymerization of epoxide and CO2 liberated in OCA polymerization is triggered from the termini of the first block. The two polymerizations thus occur in tandem, both in chemoselective fashion, so that a sequence-controlled block polymer with up to 99 % CO2 conversion is furnished in this one-pot protocol. Calculations and experimental results demonstrate a chemoselective and cooperative mechanism, where the high polymerizability of the OCA monomers guarantees exquisite sequence selectivity and the cooperative decarboxylation partly arose from the stabilization effect by triethylborane, which facilitates the smooth transformation of the chain end from carbonate to alkoxide.
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Affiliation(s)
- Jiadong Tang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P. R. China.,University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P. R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P. R. China.,University of Science and Technology of China, Hefei, 230026, P. R. China
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18
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Tang J, Li M, Wang X, Tao Y. Switchable Polymerization Organocatalysis: From Monomer Mixtures to Block Copolymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jiadong Tang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
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19
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Zhang J, Wang L, Liu S, Li Z. Synthesis of Diverse Polycarbonates by Organocatalytic Copolymerization of CO
2
and Epoxides: From High Pressure and Temperature to Ambient Conditions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jinbo Zhang
- Key Laboratory of Biobased Polymer Materials College of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao 266042 China
| | - Lebin Wang
- Key Laboratory of Biobased Polymer Materials College of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao 266042 China
| | - Shaofeng Liu
- Key Laboratory of Biobased Polymer Materials College of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao 266042 China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials College of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao 266042 China
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao 266042 China
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20
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Chen C, Gnanou Y, Feng X. Borinane-based organoboron catalysts for alternating copolymerization of CO 2 with cyclic ethers: improved productivity and facile recovery. Polym Chem 2022. [DOI: 10.1039/d2py01161a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Organoboron catalysts including an ammonium salt separated by a few carbon–carbon bonds to a boron center were designed and synthesized. Borinane-based organoboron catalysts exhibited highest activity for the copolymerization of CO2 and epoxides.
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Affiliation(s)
- Chao Chen
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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21
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Liu S, Liu L, Zhou Y, Chen Y, Zhao J. Selective ring-opening polymerization of glycidyl ester: a versatile synthetic platform for glycerol-based (co)polyethers. Polym Chem 2022. [DOI: 10.1039/d2py00551d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Linear polyglycerol is highly valued for its excellent hydrophilicity and biocompatibility as well as its multihydroxy nature. We report here a convenient route for controlled synthesis of polyglycerol through ring-opening...
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22
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Patil N, Gnanou Y, Feng X. Orthogonally grown polycarbonate and polyvinyl block copolymers from mechanistically distinct (co)polymerizations. Polym Chem 2022. [DOI: 10.1039/d2py00442a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mechanistically distinct polymerization systems can afford unique block copolymers that would not be accessible by mere sequential polymerization.
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Affiliation(s)
- Naganatha Patil
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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23
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Lai T, Zhang P, Zhao J, Zhang G. Simple and Precision Approach to Polythioimidocarbonates and Hybrid Block Copolymer Derivatives. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tao Lai
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Pengfei Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Junpeng Zhao
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
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24
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CO2-based Biodegradable Supramolecular Polymers with Well-tunable Adhesive Properties. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2641-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Zhang J, Wang L, Liu S, Li Z. Synthesis of Diverse Polycarbonates by Organocatalytic Copolymerization of CO 2 and Epoxides: From High Pressure and Temperature to Ambient Conditions. Angew Chem Int Ed Engl 2021; 61:e202111197. [PMID: 34734673 DOI: 10.1002/anie.202111197] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/13/2021] [Indexed: 11/06/2022]
Abstract
Organophosphazenes combined with triethylborane (TEB) were selected as binary organocatalyts for the copolymerization of CO2 and epoxides. Both the activity and selectivity were highly dependent on the nature of phosphazenes. 2,4,6-Tris[tri(1-pyrrolidinyl)-iminophosphorane]-1,3,5-triazine (C3 N3 -Py-P3 ) with a relatively low basicity (pKa =26.5 in CD3 CN) and a bulky molecular size (φ=1.3 nm) exhibited an unprecedented efficiency (TON up to 12240) and selectivity (>99 % polymer selectivity and >99 % carbonate linkages) toward copolymerization of CO2 and cyclohexene oxide (CHO), and produced CO2 -based polycarbonates (CO2 -PCs) with high molar masses (Mn up to 275.5 kDa) at 1 MPa of CO2 and 80 °C. Surprisingly, this binary catalytic system achieved efficient CO2 /CHO copolymerization with TOF up to 95 h-1 at 1 atm pressure and room temperature.
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Affiliation(s)
- Jinbo Zhang
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Lebin Wang
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Shaofeng Liu
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.,College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
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26
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Tran CH, Kim SA, Moon Y, Lee Y, Ryu HM, Baik JH, Hong SC, Kim I. Effect of dicarbonyl complexing agents on double metal cyanide catalysts toward copolymerization of CO2 and propylene oxide. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.01.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Liang J, Ye S, Wang W, Fan C, Wang S, Han D, Liu W, Cui Y, Hao L, Xiao M, Meng Y. Performance tailorable terpolymers synthesized from carbon dioxide, phthalic anhydride and propylene oxide using Lewis acid-base dual catalysts. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101558] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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28
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Alagi P, Zapsas G, Hadjichristidis N, Hong SC, Gnanou Y, Feng X. All-Polycarbonate Graft Copolymers with Tunable Morphologies by Metal-Free Copolymerization of CO 2 with Epoxides. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00659] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Prakash Alagi
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - George Zapsas
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Sung Chul Hong
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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29
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Ribeiro APC, Goodrich P, Martins LMDRS. Efficient and Reusable Iron Catalyst to Convert CO 2 into Valuable Cyclic Carbonates. Molecules 2021; 26:1089. [PMID: 33669560 PMCID: PMC7922262 DOI: 10.3390/molecules26041089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 11/25/2022] Open
Abstract
The production of cyclic carbonates from CO2 cycloaddition to epoxides, using the C-scorpionate iron(II) complex [FeCl2{κ3-HC(pz)3}] (pz = 1H-pyrazol-1-yl) as a catalyst, is achieved in excellent yields (up to 98%) in a tailor-made ionic liquid (IL) medium under mild conditions (80 °C; 1-8 bar). A favorable synergistic catalytic effect was found in the [FeCl2{κ3-HC(pz)3}]/IL system. Notably, in addition to exhibiting remarkable activity, the catalyst is stable during ten consecutive cycles, the first decrease (11%) on the cyclic carbonate yield being observed during the 11th cycle. The use of C-scorpionate complexes in ionic liquids to afford cyclic carbonates is presented herein for the first time.
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Affiliation(s)
- Ana P. C. Ribeiro
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
| | - Peter Goodrich
- School of Chemistry and Chemical Engineering, Queen’s University Belfast David Keir Building, Stranmillis Road, Belfast, Northern Ireland BT9 5AG, UK;
| | - Luísa M. D. R. S. Martins
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
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30
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Wang Y, Zhang JY, Yang JL, Zhang HK, Kiriratnikom J, Zhang CJ, Chen KL, Cao XH, Hu LF, Zhang XH, Tang BZ. Highly Selective and Productive Synthesis of a Carbon Dioxide-Based Copolymer upon Zwitterionic Growth. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02377] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ying Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jian-Yu Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering, The Hong Kong University of Science & Technology Clear Water Bay, Kowloon 999077, Hong Kong, China
| | - Jia-Liang Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hao-Ke Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering, The Hong Kong University of Science & Technology Clear Water Bay, Kowloon 999077, Hong Kong, China
| | - Jiraya Kiriratnikom
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Cheng-Jian Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Kai-Luo Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiao-Han Cao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lan-Fang Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xing-Hong Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ben Zhong Tang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering, The Hong Kong University of Science & Technology Clear Water Bay, Kowloon 999077, Hong Kong, China
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31
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Jia M, Hadjichristidis N, Gnanou Y, Feng X. Polyurethanes from Direct Organocatalytic Copolymerization of
p
‐Tosyl Isocyanate with Epoxides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011902] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mingchen Jia
- Physical Sciences and Engineering Division and KAUST Catalysis Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division and KAUST Catalysis Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division and KAUST Catalysis Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division and KAUST Catalysis Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
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32
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Zhang J, Wang L, Liu S, Kang X, Li Z. A Lewis Pair as Organocatalyst for One-Pot Synthesis of Block Copolymers from a Mixture of Epoxide, Anhydride, and CO 2. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02647] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jinbo Zhang
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Lebin Wang
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Shaofeng Liu
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Xiaohui Kang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
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33
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Jia M, Hadjichristidis N, Gnanou Y, Feng X. Polyurethanes from Direct Organocatalytic Copolymerization of p-Tosyl Isocyanate with Epoxides. Angew Chem Int Ed Engl 2020; 60:1593-1598. [PMID: 32989882 DOI: 10.1002/anie.202011902] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Indexed: 01/29/2023]
Abstract
The direct copolymerization of p-tosyl isocyanate (TSI) with epoxides, initiated by onium salts in the presence of trialkylborane, to produce polyurethanes is reported. The rate of copolymerization and the (regio)selectivity were investigated in relation to the trialkylborane and the initiator used. Under optimized conditions such copolymerizations have been successfully performed for a wide range of epoxides, including ethylene oxide, propylene oxide, 1-octene oxide, cyclohexene oxide, and allyl glycidyl ether. These copolymerizations afford a new category of polyurethanes, clear of side products such as cyclic oxazolidinone, isocyanurate, and poly(isocyanate) linkages. The experimental conditions used in this work are compatible with those for the organocatalytic (co)polymerization of other oxygenated monomers and CO2 , holding the potential for their terpolymerization with p-tosyl isocyanate and the development of new materials with unprecedented properties.
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Affiliation(s)
- Mingchen Jia
- Physical Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
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34
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Deacy A, Moreby E, Phanopoulos A, Williams CK. Co(III)/Alkali-Metal(I) Heterodinuclear Catalysts for the Ring-Opening Copolymerization of CO 2 and Propylene Oxide. J Am Chem Soc 2020; 142:19150-19160. [PMID: 33108736 PMCID: PMC7662907 DOI: 10.1021/jacs.0c07980] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Indexed: 02/06/2023]
Abstract
The ring-opening copolymerization of carbon dioxide and propene oxide is a useful means to valorize waste into commercially attractive poly(propylene carbonate) (PPC) polyols. The reaction is limited by low catalytic activities, poor tolerance to a large excess of chain transfer agent, and tendency to form byproducts. Here, a series of new catalysts are reported that comprise heterodinuclear Co(III)/M(I) macrocyclic complexes (where M(I) = Group 1 metal). These catalysts show highly efficient production of PPC polyols, outstanding yields (turnover numbers), quantitative carbon dioxide uptake (>99%), and high selectivity for polyol formation (>95%). The most active, a Co(III)/K(I) complex, shows a turnover frequency of 800 h-1 at low catalyst loading (0.025 mol %, 70 °C, 30 bar CO2). The copolymerizations are well controlled and produce hydroxyl telechelic PPC with predictable molar masses and narrow dispersity (Đ < 1.15). The polymerization kinetics show a second order rate law, first order in both propylene oxide and catalyst concentrations, and zeroth order in CO2 pressure. An Eyring analysis, examining the effect of temperature on the propagation rate coefficient (kp), reveals the transition state barrier for polycarbonate formation: ΔG‡ = +92.6 ± 2.5 kJ mol-1. The Co(III)/K(I) catalyst is also highly active and selective in copolymerizations of other epoxides with carbon dioxide.
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Affiliation(s)
- Arron
C. Deacy
- Department of Chemistry,
Chemistry Research Laboratory, University
of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K.
| | - Emma Moreby
- Department of Chemistry,
Chemistry Research Laboratory, University
of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K.
| | - Andreas Phanopoulos
- Department of Chemistry,
Chemistry Research Laboratory, University
of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K.
| | - Charlotte K. Williams
- Department of Chemistry,
Chemistry Research Laboratory, University
of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K.
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35
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Chen Y, Xiao W, Zhang J, Bu M, Zhang X, Chen A, Xu J, Lei C. Development of recoverable and recyclable
Fe
3
O
4
‐supported
organocatalysts for
ring‐opening
polymerization. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yang Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and Energy, Guangdong University of Technology Guangzhou P. R. China
| | - Wenhao Xiao
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and Energy, Guangdong University of Technology Guangzhou P. R. China
| | - Jie Zhang
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and Energy, Guangdong University of Technology Guangzhou P. R. China
| | - Minglu Bu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and Energy, Guangdong University of Technology Guangzhou P. R. China
| | - Xiaoqing Zhang
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and Energy, Guangdong University of Technology Guangzhou P. R. China
| | - Anfu Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and Energy, Guangdong University of Technology Guangzhou P. R. China
| | - Jinbao Xu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and Energy, Guangdong University of Technology Guangzhou P. R. China
| | - Caihong Lei
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and Energy, Guangdong University of Technology Guangzhou P. R. China
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36
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Patil N, Bhoopathi S, Chidara V, Hadjichristidis N, Gnanou Y, Feng X. Recycling a Borate Complex for Synthesis of Polycarbonate Polyols: Towards an Environmentally Friendly and Cost-Effective Process. CHEMSUSCHEM 2020; 13:5080-5087. [PMID: 32691981 DOI: 10.1002/cssc.202001395] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/12/2020] [Indexed: 06/11/2023]
Abstract
In this investigation, a metal-free process was developed that enables the synthesis of poly(propylene carbonate) (PPC) diols/polyols by copolymerization of CO2 with propylene epoxide (PO) under environmentally friendly and cost-effective conditions. This process implies the recycling of triethylborane and of ammonium salts that both enter in the composition of the initiators used to copolymerize CO2 and PO. In complement to the above approach, a polymeric support, poly(diallyl dimethylammonium chloride), was synthesized and modified to carry ammonium carboxylate salts along its chain. The prepared polymeric initiator was utilized to copolymerize CO2 with PO under heterogeneous conditions. Not only were the polymerization results similar to the samples obtained under homogeneous conditions, but the polymer substrate could easily be recovered by simple filtration. The integrity of the polycarbonate diols/polyols and the recycling process were followed by 1 H and 11 B NMR spectroscopy, gel permeation chromatography, and matrix assisted laser desorption ionization time of flight (MALDI-TOF) MS.
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Affiliation(s)
- Naganath Patil
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Senthil Bhoopathi
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Vamshi Chidara
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
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37
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Jia M, Zhang D, de Kort GW, Wilsens CHRM, Rastogi S, Hadjichristidis N, Gnanou Y, Feng X. All-Polycarbonate Thermoplastic Elastomers Based on Triblock Copolymers Derived from Triethylborane-Mediated Sequential Copolymerization of CO 2 with Various Epoxides. Macromolecules 2020; 53:5297-5307. [PMID: 32905284 PMCID: PMC7467772 DOI: 10.1021/acs.macromol.0c01068] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/08/2020] [Indexed: 01/29/2023]
Abstract
Various oxirane monomers including alkyl ether or allyl-substituted ones such as 1-butene oxide, 1-hexene oxide, 1-octene oxide, butyl glycidyl ether, allyl glycidyl ether, and 2-ethylhexyl glycidyl ether were anionically copolymerized with CO2 into polycarbonates using onium salts as initiator in the presence of triethylborane. All copolymerizations exhibited a "living" character, and the monomer consumption was monitored by in situ Fourier-transform infrared spectroscopy. The various polycarbonate samples obtained were characterized by 1H NMR, GPC, and differential scanning calorimetry. In a second step, all-polycarbonate triblock copolymers demonstrating elastomeric behavior were obtained in one pot by sequential copolymerization of CO2 with two different epoxides, using a difunctional initiator. 1-Octene oxide was first copolymerized with CO2 to form the central soft poly(octene carbonate) block which was flanked by two external rigid poly(cyclohexene carbonate) blocks obtained through subsequent copolymerization of cyclohexene oxide with CO2. Upon varying the ratio of 1-octene oxide to cyclohexene oxide and their respective ratios to the initiator, three all-polycarbonate triblock samples were prepared with molar masses of about 350 kg/mol and 22, 26, and 29 mol % hard block content, respectively. The resulting triblock copolymers were analyzed using 1H NMR, GPC, thermogravimetric analysis, differential scanning calorimetry, and atomic force microscopy. All three samples demonstrated typical elastomeric behavior characterized by a high elongation at break and ultimate tensile strength in the same range as those of other natural and synthetic rubbers, in particular those used in applications such as tissue engineering.
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Affiliation(s)
- Mingchen Jia
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
| | - Dongyue Zhang
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
| | - Gijs W. de Kort
- Aachen-Maastricht
Institute of Biobased Materials (AMIBM), Maastricht University, P.O. Box 616, Maastricht 6200MD, The
Netherlands
| | - Carolus H. R. M. Wilsens
- Aachen-Maastricht
Institute of Biobased Materials (AMIBM), Maastricht University, P.O. Box 616, Maastricht 6200MD, The
Netherlands
| | - Sanjay Rastogi
- Aachen-Maastricht
Institute of Biobased Materials (AMIBM), Maastricht University, P.O. Box 616, Maastricht 6200MD, The
Netherlands
| | - Nikos Hadjichristidis
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
| | - Yves Gnanou
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
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38
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Gong R, Cao H, Zhang H, Qiao L, Wang F, Wang X. Terminal Hydrophilicity-Induced Dispersion of Cationic Waterborne Polyurethane from CO 2-Based Polyol. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00606] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Runan Gong
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Han Cao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Hongming Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Lijun Qiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Fosong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
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39
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Yang GW, Zhang YY, Xie R, Wu GP. Scalable Bifunctional Organoboron Catalysts for Copolymerization of CO2 and Epoxides with Unprecedented Efficiency. J Am Chem Soc 2020; 142:12245-12255. [DOI: 10.1021/jacs.0c03651] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Guan-Wen Yang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yao-Yao Zhang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Rui Xie
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guang-Peng Wu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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40
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Defects in nanosilica catalytically convert CO 2 to methane without any metal and ligand. Proc Natl Acad Sci U S A 2020; 117:6383-6390. [PMID: 32156731 DOI: 10.1073/pnas.1917237117] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Active and stable metal-free heterogeneous catalysts for CO2 fixation are required to reduce the current high level of carbon dioxide in the atmosphere, which is driving climate change. In this work, we show that defects in nanosilica (E' centers, oxygen vacancies, and nonbridging oxygen hole centers) convert CO2 to methane with excellent productivity and selectivity. Neither metal nor complex organic ligands were required, and the defect alone acted as catalytic sites for carbon dioxide activation and hydrogen dissociation and their cooperative action converted CO2 to methane. Unlike metal catalysts, which become deactivated with time, the defect-containing nanosilica showed significantly better stability. Notably, the catalyst can be regenerated by simple heating in the air without the need for hydrogen gas. Surprisingly, the catalytic activity for methane production increased significantly after every regeneration cycle, reaching more than double the methane production rate after eight regeneration cycles. This activated catalyst remained stable for more than 200 h. Detailed understanding of the role of the various defect sites in terms of their concentrations and proximities as well as their cooperativity in activating CO2 and dissociating hydrogen to produce methane was achieved.
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41
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Jia M, Hadjichristidis N, Gnanou Y, Feng X. Monomodal Ultrahigh-Molar-Mass Polycarbonate Homopolymers and Diblock Copolymers by Anionic Copolymerization of Epoxides with CO 2. ACS Macro Lett 2019; 8:1594-1598. [PMID: 35619379 DOI: 10.1021/acsmacrolett.9b00854] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Whatever the chemistry used for the synthesis of aliphatic polycarbonates, in particular, those of high molar mass, the adventitious presence of water leads to bimodal GPC traces and affords polycarbonate samples of uncontrolled and unpredictable molar masses. It appears that among all reagents used in the copolymerization of CO2 and epoxides, CO2 is the most difficult one to dry. To address this issue, triisobutylaluminum (TiBA) was employed in this work to dry CO2 through a bubbling method; its drying capability was investigated in the context of the copolymerization of CO2 with epoxides initiated by onium chloride in the presence of triethylborane (TEB). It was then compared to the efficiency of other already reported drying agents such as phosphorus pentoxide, molecular sieves and commercially available CO2 purifiers. With TiBA-dried CO2, its copolymerizations respectively with propylene oxide (PO) and cyclohexene oxide (CHO) could be successfully achieved in a wide range of degrees of polymerization (DP), with the value of DP as high as 16000. Diblock copolymers poly(propylene carbonate-b-cyclohexene carbonate) (PPC-b-PCHC) could also be prepared through sequential addition of epoxide monomers. The polycarbonates obtained under the conditions were all well-defined as characterized by NMR, GPC, triple detector-GPC, and differential scanning calorimetry (DSC).
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42
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Co-Ni Cyanide Bi-Metal Catalysts: Copolymerization of Carbon Dioxide with Propylene Oxide and Chain Transfer Agents. Catalysts 2019. [DOI: 10.3390/catal9080632] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Synthesis of copolymers from carbon dioxide (CO2) and epoxides is an important research direction as such processes utilize the abundant greenhouse gas and deliver useful products. Specifically, cooligomers of CO2 and propylene oxide (PO) with a non-alternating structure can be used for polyurethane preparation. They are synthesized by employing Zn-Co cyanide catalysts. The application of alternative metal cyanide complexes is interesting from scientific and practical points of view. The purpose of this work was to study the copolymerization of CO2 and PO in the presence of Co-Ni cyanide catalysts and chain transfer agents (CTAs) in order to obtain low molecular weight products. Three Co-Ni catalysts with different contents of complexing agents were synthesized, characterized by several analytical methods and applied for this reaction. The complex without complexing agents was chosen for detailed investigation. 1,6-Hexanediol proved to be a more preferred CTA than poly(propylene glycol) and adipic acid. An oligo(ethercarbonate) (Mn = 2560, PDI = 2.5, CO2 = 20 mol.%) capped with OH groups was synthesized with relatively high productivity (1320 gPO+CO2/gcat in 24 h) and characterized by matrix-assisted laser desorption/ionization (MALDI) MS and NMR methods. The main chain transfer routes during the cooligomerization were suggested on the basis of the research results.
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43
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Chen Z, Yang JL, Lu XY, Hu LF, Cao XH, Wu GP, Zhang XH. Triethyl borane-regulated selective production of polycarbonates and cyclic carbonates for the coupling reaction of CO2 with epoxides. Polym Chem 2019. [DOI: 10.1039/c9py00398c] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The copolymerization of CO2 and epoxides bearing phenyl group is achieved by the combination of Lewis bases and excess triethyl borane that decides the selectivity.
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Affiliation(s)
- Zheng Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jia-Liang Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xin-Yu Lu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Lan-Fang Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiao-Han Cao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Guang-Peng Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xing-Hong Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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