1
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Zhang Q, Hu C, Pang X, Chen X. Multi-Functional Organofluoride Catalysts for Polyesters Production and Upcycling Degradation. CHEMSUSCHEM 2024; 17:e202300907. [PMID: 37735092 DOI: 10.1002/cssc.202300907] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/03/2023] [Accepted: 09/21/2023] [Indexed: 09/23/2023]
Abstract
The production and degradation of polyesters are two crucial processes in polyester materials' life cycle. In this work, multi-functional organocatalysts based on fluorides for both processes are described. Organofluorides were developed as catalysts for ring-opening polymerization of lactide (lactone). Compared with a series of organohalides, organofluoride performed the best catalytic reactivity because of the hydrogen bond interaction between F- and alcohol initiator. The Mn values of polyester products could be up to 72 kg mol-1 . With organofluoride catalysts, the ring-opening copolymerization between various anhydrides and epoxides could be established. Furthermore, terpolymerization of anhydride, epoxide, and lactide could be constructed by the self-switchable organofluoride catalyst to yield a block polymer with a strictly controlled polymerization sequence. Organofluorides were also efficient catalysts for upcycling polyester plastic wastes via alcoholysis. Mixed polyester materials could also be hierarchically recycled.
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Affiliation(s)
- Qiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, China
| | - Chenyang Hu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, China
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2
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Wang X, Huo Z, Xie X, Shanaiah N, Tong R. Recent Advances in Sequence-Controlled Ring-Opening Copolymerizations of Monomer Mixtures. Chem Asian J 2023; 18:e202201147. [PMID: 36571563 DOI: 10.1002/asia.202201147] [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: 11/13/2022] [Revised: 12/14/2022] [Accepted: 12/23/2022] [Indexed: 12/27/2022]
Abstract
Transforming renewable resources into functional and degradable polymers is driven by the ever-increasing demand to replace unsustainable polyolefins. However, the utility of many degradable homopolymers remains limited due to their inferior properties compared to commodity polyolefins. Therefore, the synthesis of sequence-defined copolymers from one-pot monomer mixtures is not only conceptually appealing in chemistry, but also economically attractive by maximizing materials usage and improving polymers' performances. Among many polymerization strategies, ring-opening (co)polymerization of cyclic monomers enables efficient access to degradable polymers with high control on molecular weights and molecular weight distributions. Herein, we highlight recent advances in achieving one-pot, sequence-controlled polymerizations of cyclic monomer mixtures using a single catalytic system that combines multiple catalytic cycles. The scopes of cyclic monomers, catalysts, and polymerization mechanisms are presented for this type of sequence-controlled ring-opening copolymerization.
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Affiliation(s)
- Xiaoqian Wang
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, 24061, Blacksburg, VA, USA
| | - Ziyu Huo
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, 24061, Blacksburg, VA, USA
| | - Xiaoyu Xie
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, 24061, Blacksburg, VA, USA
| | - Narasimhamurthy Shanaiah
- Department of Chemistry, Virginia Polytechnic Institute and State University, 1040 Drillfield Drive, 24061, Blacksburg, VA, USA
| | - Rong Tong
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, 24061, Blacksburg, VA, USA
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3
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Rittinghaus RD, Herres-Pawlis S. Catalysts as Key Enablers for the Synthesis of Bioplastics with Sophisticated Architectures. Chemistry 2023; 29:e202202222. [PMID: 36173968 PMCID: PMC10098652 DOI: 10.1002/chem.202202222] [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: 07/15/2022] [Indexed: 01/05/2023]
Abstract
Bioplastics are one of the answers to environmental pollution and linear material flows. The most promising bioplastic polylactide (PLA) is already replacing conventional plastics in a number of applications. The properties of PLA, however, do not fit for all potential application areas, but they can be altered by the introduction of comonomers. The copolymerization of lactide (LA) with other lactones like ϵ-caprolactone (CL) has been established for several years. Nevertheless, controlling copolymerizations remains a challenge due to the high complexity of the system. Copolymerization of LA with other monomer classes is much less investigated, but has the chance to overcome the limitations in material properties that occur when only lactones are used. The crucial factor for all copolymerizations is the catalyst. It dominates the reaction kinetics and determines the resulting microstructure. In this review, copolymerization catalysts for LA are presented divided into catalysts for the synthesis of lactone block copolymers, lactone random copolymers, and multimechanistically synthesized copolymers. The selected catalysts are highlighted either owing to their industrially applicable polymerization conditions or their non-standard mechanism.
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Affiliation(s)
- Ruth D Rittinghaus
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Sonja Herres-Pawlis
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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4
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Jia Y, Sun Z, Hu C, Pang X. Switchable Polymerization: A Practicable Strategy to Produce Biodegradable Block Copolymers with Diverse Properties. Chempluschem 2022; 87:e202200220. [PMID: 36071346 DOI: 10.1002/cplu.202200220] [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: 06/30/2022] [Revised: 08/14/2022] [Indexed: 11/11/2022]
Abstract
With the global demand for sustainable development, there has been an increasing interest in using natural biomass as raw resources to produce sustainable polymers as an alternative to petroleum-based polymers. Because monocomponent biodegradable polymers are often insufficient in performance, copolymers with well-engineered block structures are synthesized to reach wide tunability. Switchable polymerization is such a practical strategy to produce biodegradable block copolymers with diverse performance. This review focus on the performance of block copolymers bearing biodegradable polymer segments produced by diverse switchable polymerization. We highlight two main segments that are critical for biodegradable block copolymers, i. e., polyester and polycarbonate, summarize the multiple characters of materials from switchable polymerization such as antibacterial, shape memory, adhesives, etc. The state-of-the-art research on biodegradable block copolymers, as well as an outlook on the preparation and application of novel materials, are presented.
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Affiliation(s)
- Yifan Jia
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Zhiqiang Sun
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Chenyang Hu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
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5
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Yang Z, Hu C, Cui F, Pang X, Huang Y, Zhou Y, Chen X. One-Pot Precision Synthesis of AB, ABA and ABC Block Copolymers via Switchable Catalysis. Angew Chem Int Ed Engl 2022; 61:e202117533. [PMID: 35038202 DOI: 10.1002/anie.202117533] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Indexed: 12/28/2022]
Abstract
The switchable catalysis using a commercial salenMn catalyst was firstly developed and applied in the one-pot selective copolymerization from anhydrides, epoxides, CO2 and ϵ-caprolactone (ϵ-CL) mixtures for the precise synthesis of AB, ABA and novel ABC block copolymers. The observed unique double switch process comprising three different polymerization cycles was rationalized by theoretical calculations. Surprisingly, the first block turned out to be an efficient macromolecular initiator for the consecutive introduction of carbonate linkages into copolymers, albeit with dominant cyclization with the catalyst alone. Further, through the selective reaction on different epoxides, the switchable copolymerization of up to five monomers was achieved yielding well-defined multi-block copolymers with structural diversity and functionality.
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Affiliation(s)
- Zhenjie Yang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Chenyang Hu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Fengchao Cui
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Changchun, 130024, P. R. China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Yuezhou Huang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Yanchuan Zhou
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
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6
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Zhu X, Yang G, Xie R, Wu G. One‐Pot Construction of Sulfur‐Rich Thermoplastic Elastomers Enabled by Metal‐Free Self‐Switchable Catalysis and Air‐Assisted Coupling. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115189] [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)
- Xiao‐Feng Zhu
- 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 Hangzhou 310027 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 Hangzhou 310027 China
| | - Rui Xie
- 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 Hangzhou 310027 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 Hangzhou 310027 China
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7
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Yang Z, Hu C, Cui F, Pang X, Huang Y, Zhou Y, Chen X. One‐pot Precision Synthesis of AB, ABA and ABC Block Copolymers via Switchable Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117533] [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)
- Zhenjie Yang
- 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
| | - Chenyang Hu
- 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
| | - Fengchao Cui
- Northeast Normal University Department of Chemistry CHINA
| | - Xuan Pang
- Changchun Institute of Applied Chemistry Key Laboratory of Polymer Ecomaterials 5625 Renmin St. 130022 Changchun CHINA
| | - Yuezhou Huang
- 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
| | - Yanchuan Zhou
- 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
| | - Xuesi Chen
- 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
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8
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Zhu XF, Yang GW, Xie R, Wu GP. One-Pot Construction of Sulfur-Rich Thermoplastic Elastomers Enabled by Metal-Free Self-Switchable Catalysis and Air-Assisted Coupling. Angew Chem Int Ed Engl 2021; 61:e202115189. [PMID: 34866295 DOI: 10.1002/anie.202115189] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Indexed: 11/09/2022]
Abstract
Construction of well-defined sulfur-rich macromolecules in a facile manner is an interesting but challenging topic. Herein, we disclose how to readily construct well-defined triblock sulfur-rich thermoplastic elastomers via a self-switchable isothiocyanate/episulfide copolymerization and air-assisted oxidative coupling strategy. During self-switchable polymerization, alternating copolymerization of isothiocyanate and episulfide occurs initially due to the lower energy barrier for isothiocyanate insertion with respect to successive episulfide ring-opening. After exhaustion of isothiocyanate, ring-opening polymerization of episulfide begins, providing diblock polymers. Subsequent exposure of the reaction to air leads to a transformation of diblock copolymers into triblock thermoplastic elastomers. This protocol can be extended to diverse isothiocyanates and episulfides, allowing fine-tuning of the performance of the produced sulfur-rich thermoplastic elastomers.
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Affiliation(s)
- Xiao-Feng Zhu
- 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, Hangzhou, 310027, 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, Hangzhou, 310027, China
| | - Rui Xie
- 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, Hangzhou, 310027, 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, Hangzhou, 310027, China
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9
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Rittinghaus RD, Karabulut A, Hoffmann A, Herres‐Pawlis S. Nachtaktiv: Eisen‐Guanidin‐Komplex katalysiert ROP auf der schlafenden Seite der ATRP. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ruth D. Rittinghaus
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1a 52074 Aachen Deutschland
| | - Aylin Karabulut
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1a 52074 Aachen Deutschland
| | - Alexander Hoffmann
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1a 52074 Aachen Deutschland
| | - Sonja Herres‐Pawlis
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1a 52074 Aachen Deutschland
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10
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Rittinghaus RD, Karabulut A, Hoffmann A, Herres‐Pawlis S. Active in Sleep: Iron Guanidine Catalyst Performs ROP on Dormant Side of ATRP. Angew Chem Int Ed Engl 2021; 60:21795-21800. [PMID: 34270162 PMCID: PMC8518923 DOI: 10.1002/anie.202109053] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Indexed: 11/23/2022]
Abstract
Copolymers are the answer to property limitations of homopolymers. In order to use the full variety of monomers available, catalysts active in more than one polymerization mechanism are currently investigated. Iron guanidine catalysts have shown to be extraordinarily active in ROP of lactide and herein prove their versatility by also promoting ATRP of styrene. The presented iron complex is the first polymerizing lactide and styrene simultaneously to a defined block copolymer in a convenient one-pot synthesis. Both mechanisms work hand in hand with ROP using the dominantly present FeII species on the dormant side of the ATRP equilibrium. This orthogonal copolymerization by a benign iron catalyst opens up new pathways to biocompatible polymerization procedures broadening the scope of ATRP applications.
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Affiliation(s)
- Ruth D. Rittinghaus
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 1a52074AachenGermany
| | - Aylin Karabulut
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 1a52074AachenGermany
| | - Alexander Hoffmann
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 1a52074AachenGermany
| | - Sonja Herres‐Pawlis
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 1a52074AachenGermany
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11
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Lindeboom W, Fraser DAX, Durr CB, Williams CK. Heterodinuclear Zn(II), Mg(II) or Co(III) with Na(I) Catalysts for Carbon Dioxide and Cyclohexene Oxide Ring Opening Copolymerizations. Chemistry 2021; 27:12224-12231. [PMID: 34133043 PMCID: PMC8456860 DOI: 10.1002/chem.202101140] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Indexed: 12/16/2022]
Abstract
A series heterodinuclear catalysts, operating without co-catalyst, show good performances for the ring opening copolymerization (ROCOP) of cyclohexene oxide and carbon dioxide. The complexes feature a macrocyclic ligand designed to coordinate metals such as Zn(II), Mg(II) or Co(III), in a Schiff base 'pocket', and Na(I) in a modified crown-ether binding 'pocket'. The 11 new catalysts are used to explore the influences of the metal combinations and ligand backbones over catalytic activity and selectivity. The highest performance catalyst features the Co(III)Na(I) combination, [N,N'-bis(3,3'-triethylene glycol salicylidene)-1,2-ethylenediamino cobalt(III) di(acetate)]sodium (7), and it shows both excellent activity and selectivity at 1 bar carbon dioxide pressure (TOF=1590 h-1 , >99 % polymer selectivity, 1 : 10: 4000, 100 °C), as well as high activity at higher carbon dioxide pressure (TOF=4343 h-1 , 20 bar, 1 : 10 : 25000). Its rate law shows a first order dependence on both catalyst and cyclohexene oxide concentrations and a zeroth order for carbon dioxide pressure, over the range 10-40 bar. These new catalysts eliminate any need for ionic or Lewis base co-catalyst and instead exploit the coordination of earth-abundant and inexpensive Na(I) adjacent to a second metal to deliver efficient catalysis. They highlight the potential for well-designed ancillary ligands and inexpensive Group 1 metals to deliver high performance heterodinuclear catalysts for carbon dioxide copolymerizations and, in future, these catalysts may also show promise in other alternating copolymerization and carbon dioxide utilizations.
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Affiliation(s)
- Wouter Lindeboom
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordUK
| | - Duncan A. X. Fraser
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordUK
| | - Christopher B. Durr
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordUK
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12
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Plajer AJ, Williams CK. Heterotrimetallic Carbon Dioxide Copolymerization and Switchable Catalysts: Sodium is the Key to High Activity and Unusual Selectivity. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101180] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Alex J. Plajer
- Oxford Chemistry Chemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
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13
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Plajer AJ, Williams CK. Heterotrimetallic Carbon Dioxide Copolymerization and Switchable Catalysts: Sodium is the Key to High Activity and Unusual Selectivity. Angew Chem Int Ed Engl 2021; 60:13372-13379. [PMID: 33971064 PMCID: PMC8251569 DOI: 10.1002/anie.202101180] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/08/2021] [Indexed: 12/18/2022]
Abstract
A challenge in polymer synthesis using CO2 is to precisely control CO2 placement in the backbone and chain end groups. Here, a new catalyst class delivers unusual selectivity and is self-switched between different polymerization cycles to construct specific sequences and desirable chain-end chemistries. The best catalyst is a trinuclear dizinc(II)sodium(I) complex and it functions without additives or co-catalysts. It shows excellent rates across different ring-opening (co)polymerization catalytic cycles and allows precise control of CO2 incorporation within polyesters and polyethers, thereby allowing access to new polymer chemistries without requiring esoteric monomers, multi-reactor processes or complex post-polymerization procedures. The structures, kinetics and mechanisms of the catalysts are investigated, providing evidence for intermediate speciation and uncovering the factors governing structure and composition and thereby guiding future catalyst design.
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Affiliation(s)
- Alex J. Plajer
- Oxford ChemistryChemical Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
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14
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Chen TTD, Carrodeguas LP, Sulley GS, Gregory GL, Williams CK. Bio-based and Degradable Block Polyester Pressure-Sensitive Adhesives. Angew Chem Int Ed Engl 2020; 59:23450-23455. [PMID: 32886833 PMCID: PMC7756385 DOI: 10.1002/anie.202006807] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/14/2020] [Indexed: 12/13/2022]
Abstract
A new class of bio-based fully degradable block polyesters are pressure-sensitive adhesives. Bio-derived monomers are efficiently polymerized to make block polyesters with controlled compositions. They show moderate to high peel adhesions (4-13 N cm-1 ) and controllable storage and loss moduli, and they are removed by adhesive failure. Their properties compare favorably with commercial adhesives or bio-based polyester formulations but without the need for tackifier or additives.
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Affiliation(s)
- Thomas T. D. Chen
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RdOxfordOX1 3TAUK
| | - Leticia Peña Carrodeguas
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RdOxfordOX1 3TAUK
| | - Gregory S. Sulley
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RdOxfordOX1 3TAUK
| | - Georgina L. Gregory
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RdOxfordOX1 3TAUK
| | - Charlotte K. Williams
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RdOxfordOX1 3TAUK
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15
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Chen TTD, Carrodeguas LP, Sulley GS, Gregory GL, Williams CK. Bio‐based and Degradable Block Polyester Pressure‐Sensitive Adhesives. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006807] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Thomas T. D. Chen
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Rd Oxford OX1 3TA UK
| | - Leticia Peña Carrodeguas
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Rd Oxford OX1 3TA UK
| | - Gregory S. Sulley
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Rd Oxford OX1 3TA UK
| | - Georgina L. Gregory
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Rd Oxford OX1 3TA UK
| | - Charlotte K. Williams
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Rd Oxford OX1 3TA UK
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16
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Zhao Y, Wang Y, Zhou X, Xue Z, Wang X, Xie X, Poli R. Oxygen‐Triggered Switchable Polymerization for the One‐Pot Synthesis of CO
2
‐Based Block Copolymers from Monomer Mixtures. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yajun Zhao
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Yong Wang
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Xingping Zhou
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Zhigang Xue
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry, CAS Changchun 130022 P. R. China
| | - Xiaolin Xie
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Rinaldo Poli
- Laboratoire de Chimie de Coordination (LCC-CNRS) Université de Toulouse UPS, INPT 205, route de Narbonne 31077 Toulouse France
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17
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Zhao Y, Wang Y, Zhou X, Xue Z, Wang X, Xie X, Poli R. Oxygen-Triggered Switchable Polymerization for the One-Pot Synthesis of CO 2 -Based Block Copolymers from Monomer Mixtures. Angew Chem Int Ed Engl 2019; 58:14311-14318. [PMID: 31282122 DOI: 10.1002/anie.201906140] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Indexed: 02/02/2023]
Abstract
Switchable polymerization provides the opportunity to regulate polymer sequence and structure in a one-pot process from mixtures of monomers. Herein we report the use of O2 as an external stimulus to switch the polymerization mechanism from the radical polymerization of vinyl monomers mediated by (Salen)CoIII -R [Salen=N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine; R=alkyl] to the ring-opening copolymerization (ROCOP) of CO2 /epoxides. Critical to this process is unprecedented monooxygen insertion into the Co-C bond, as rationalized by DFT calculations, leading to the formation of (Salen)CoIII -O-R as an active species to initiate ROCOP. Diblock poly(vinyl acetate)-b-polycarbonate could be obtained by ROCOP of CO2 /epoxides with preactivation of (Salen)Co end-capped poly(vinyl acetate). Furthermore, a poly(vinyl acetate)-b-poly(methyl acrylate)-b-polycarbonate triblock copolymer was successfully synthesized by a (Salen)cobalt-mediated sequential polymerization with an O2 -triggered switch in a one-pot process.
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Affiliation(s)
- Yajun Zhao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yong Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xingping Zhou
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Zhigang Xue
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
| | - Xiaolin Xie
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Rinaldo Poli
- Laboratoire de Chimie de Coordination (LCC-CNRS), Université de Toulouse, UPS, INPT, 205, route de Narbonne, 31077, Toulouse, France
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18
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Ji H, Wang B, Pan L, Li Y. One‐Step Access to Sequence‐Controlled Block Copolymers by Self‐Switchable Organocatalytic Multicomponent Polymerization. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810083] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- He‐Yuan Ji
- Tianjin Key Lab of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin University Tianjin 300350 China
| | - Bin Wang
- Tianjin Key Lab of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin University Tianjin 300350 China
| | - Li Pan
- Tianjin Key Lab of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin University Tianjin 300350 China
| | - Yue‐Sheng Li
- Tianjin Key Lab of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin University Tianjin 300350 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
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19
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Stößer T, Mulryan D, Williams CK. Switch Catalysis To Deliver Multi-Block Polyesters from Mixtures of Propene Oxide, Lactide, and Phthalic Anhydride. Angew Chem Int Ed Engl 2018; 57:16893-16897. [PMID: 30370965 PMCID: PMC6391959 DOI: 10.1002/anie.201810245] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/09/2018] [Indexed: 12/31/2022]
Abstract
Switchable polymerisation catalysis enables block polymer sequence selectivity from monomer mixtures, resulting in the formation of multiblock polyesters. The aluminium salphen catalyst switches between two different polymerisation mechanisms and selectively enchains mixtures of commercially available monomers: lactide, phthalic anhydride, and propene oxide. Sequential monomer mixture additions yield multi-block polyesters featuring 3, 7, 11, 15, 19, 23, and 27 blocks. The unparalleled catalytic selectivity can be used to access completely new multi-block polyesters relevant for future applications.
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Affiliation(s)
- Tim Stößer
- Department of ChemistryOxford UniversityChemical Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
| | - Daniel Mulryan
- Department of ChemistryOxford UniversityChemical Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
| | - Charlotte K. Williams
- Department of ChemistryOxford UniversityChemical Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
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20
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Stößer T, Mulryan D, Williams CK. Schaltbare Katalyse zur Herstellung von Multiblock‐Polyestern aus einer Mischung von Propylenoxid, Lactid und Phthalsäureanhydrid. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810245] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Tim Stößer
- Department of ChemistryOxford UniversityChemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA Großbritannien
| | - Daniel Mulryan
- Department of ChemistryOxford UniversityChemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA Großbritannien
| | - Charlotte K. Williams
- Department of ChemistryOxford UniversityChemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA Großbritannien
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21
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Ji HY, Wang B, Pan L, Li YS. One-Step Access to Sequence-Controlled Block Copolymers by Self-Switchable Organocatalytic Multicomponent Polymerization. Angew Chem Int Ed Engl 2018; 57:16888-16892. [PMID: 30417592 DOI: 10.1002/anie.201810083] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Indexed: 12/28/2022]
Abstract
A one-step procedure for the self-switchable block copolymerization of monomer mixtures of epoxides, cyclic anhydrides, and lactide (LA) was developed by using simple organocatalysts without an external stimulus. This multicomponent polymerization bridges two catalytic cycles involving ring-opening alternating copolymerization of epoxides with anhydrides and ring-opening polymerization (ROP) of LA, in which the presence/absence of anhydrides in mixed feedstocks switched the ROP of LA off/on. The self-switchable terpolymerization showed distinct noncoordinating and living nature, as well as perfect chemoselectivity. Different combinations of epoxides, anhydrides, and initiators enabled the generation of a variety of new block polyester polyols.
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Affiliation(s)
- He-Yuan Ji
- Tianjin Key Lab of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Bin Wang
- Tianjin Key Lab of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Li Pan
- Tianjin Key Lab of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Yue-Sheng Li
- Tianjin Key Lab of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
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22
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Chen Y, Wilson JA, Petersen SR, Luong D, Sallam S, Mao J, Wesdemiotis C, Becker ML. Ring-Opening Copolymerization of Maleic Anhydride with Functional Epoxides: Poly(propylene fumarate) Analogues Capable of Post-Polymerization Modification. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yusheng Chen
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | - James A. Wilson
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | | | - Derek Luong
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | - Sahar Sallam
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Jialin Mao
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Chrys Wesdemiotis
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Matthew L. Becker
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
- Department of Biomedical Engineering; The University of Akron; Akron OH 44325 USA
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23
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Chen Y, Wilson JA, Petersen SR, Luong D, Sallam S, Mao J, Wesdemiotis C, Becker ML. Ring-Opening Copolymerization of Maleic Anhydride with Functional Epoxides: Poly(propylene fumarate) Analogues Capable of Post-Polymerization Modification. Angew Chem Int Ed Engl 2018; 57:12759-12764. [DOI: 10.1002/anie.201807419] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/02/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Yusheng Chen
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | - James A. Wilson
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | | | - Derek Luong
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | - Sahar Sallam
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Jialin Mao
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Chrys Wesdemiotis
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Matthew L. Becker
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
- Department of Biomedical Engineering; The University of Akron; Akron OH 44325 USA
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