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Concurrent control over sequence and dispersity in multiblock copolymers. Nat Chem 2021; 14:304-312. [PMID: 34845344 DOI: 10.1038/s41557-021-00818-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 09/21/2021] [Indexed: 12/30/2022]
Abstract
Controlling monomer sequence and dispersity in synthetic macromolecules is a major goal in polymer science as both parameters determine materials' properties and functions. However, synthetic approaches that can simultaneously control both sequence and dispersity remain experimentally unattainable. Here we report a simple, one pot and rapid synthesis of sequence-controlled multiblocks with on-demand control over dispersity while maintaining a high livingness, and good agreement between theoretical and experimental molecular weights and quantitative yields. Key to our approach is the regulation in the activity of the chain transfer agent during a controlled radical polymerization that enables the preparation of multiblocks with gradually ascending (Ɖ = 1.16 → 1.60), descending (Ɖ = 1.66 → 1.22), alternating low and high dispersity values (Ɖ = 1.17 → 1.61 → 1.24 → 1.70 → 1.26) or any combination thereof. We further demonstrate the potential of our methodology through the synthesis of highly ordered pentablock, octablock and decablock copolymers, which yield multiblocks with concurrent control over both sequence and dispersity.
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Clothier GKK, Guimarães TR, Moad G, Zetterlund PB. Multiblock Copolymer Synthesis via Reversible Addition–Fragmentation Chain Transfer Emulsion Polymerization: Effects of Chain Mobility within Particles on Control over Molecular Weight Distribution. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00345] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Glenn K. K. Clothier
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Thiago R. Guimarães
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Graeme Moad
- CSIRO Manufacturing, Bag 10,l, Clayton South, Victoria 3169, Australia
| | - Per B. Zetterlund
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
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Scholten PBV, Cartigny G, Grignard B, Debuigne A, Cramail H, Meier MAR, Detrembleur C. Functional Polyethylenes by Organometallic-Mediated Radical Polymerization of Biobased Carbonates. ACS Macro Lett 2021; 10:313-320. [PMID: 35549068 DOI: 10.1021/acsmacrolett.1c00037] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Partly or fully renewable (co)polymers are gaining interest in both academia and industry. Polyethylene is a widely used polymer, classically derived from fossil fuels, with a high versatility stemming from the introduction of comonomers altering the mechanical properties. The introduction of renewable functionalities into this polymer is highly attractive to obtain functional, tunable, and at least partially renewable polyethylenes. We herein report the introduction of biosourced cyclic carbonates into polyethylene using organometallic-mediated radical polymerization under mild conditions. Molecular weights of up to 14 600 g mol-1 with dispersities as low as 1.19 were obtained, and the cyclic carbonate content could be easily tuned by the ethylene pressure during the polymerization. As a proof of concept, the hydrolysis of the cyclic carbonates of a representative copolymer was explored, and it provided polyethylene-bearing vicinal diols, with a hydrolysis degree of 71%. Given the multitude of chemoselective modifications possible on cyclic carbonates as well as the fact that many allylic- and alkylidene-type cyclic carbonates are accessible from renewable resources, this work opens up an avenue for the design of functional and more sustainable polyethylenes.
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Affiliation(s)
- Philip B. V. Scholten
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, Department of Chemistry, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
- Institute of Organic Chemistry, Materialwissenschaftliches Zentrum MZE, Karlsruhe Institute of Technology, Straße am Forum 7, 76131 Karlsruhe, Germany
| | - Grégory Cartigny
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, Department of Chemistry, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
| | - Bruno Grignard
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, Department of Chemistry, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
| | - Antoine Debuigne
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, Department of Chemistry, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
| | - Henri Cramail
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux, 16 Avenue Pey-Berland, 33607 Pessac, France
| | - Michael A. R. Meier
- Institute of Organic Chemistry, Materialwissenschaftliches Zentrum MZE, Karlsruhe Institute of Technology, Straße am Forum 7, 76131 Karlsruhe, Germany
- Laboratory of Applied Chemistry, Institute of Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Christophe Detrembleur
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, Department of Chemistry, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
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Affiliation(s)
- Hyun-Seok Yu
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
| | - Joon-Sung Kim
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
| | - Vignesh Vasu
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
| | - Christopher P. Simpson
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
| | - Alexandru D. Asandei
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
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Demarteau J, Debuigne A, Detrembleur C. Organocobalt Complexes as Sources of Carbon-Centered Radicals for Organic and Polymer Chemistries. Chem Rev 2019; 119:6906-6955. [DOI: 10.1021/acs.chemrev.8b00715] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Jérémy Demarteau
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Allée du 6 Août, Building B6A, Agora Square, 4000 Liège, Belgium
| | - Antoine Debuigne
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Allée du 6 Août, Building B6A, Agora Square, 4000 Liège, Belgium
| | - Christophe Detrembleur
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Allée du 6 Août, Building B6A, Agora Square, 4000 Liège, Belgium
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Pan C, Tillman E. Accurately Determining the Extent of Coupling in Post Polymerization Reactions of Polystyrene. Polymers (Basel) 2018; 10:E80. [PMID: 30966114 PMCID: PMC6415076 DOI: 10.3390/polym10010080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/02/2018] [Accepted: 01/11/2018] [Indexed: 12/04/2022] Open
Abstract
Polymers prepared by controlled radical polymerization (CRP) can be employed in subsequent chain-end joining reactions, yet accurately assessing the extent of coupling in mechanistically unique paths is not straightforward. Precisely known mixtures of polystyrene standards were prepared and analyzed by gel permeation chromatography (GPC), mimicking the coupled product and precursor that could be present after a post-polymerization, chain-end joining reaction. The exactly known percentages of each polymer in the mixture allowed for comparison of the true "extent of coupling" (Xc) to that determined by a commonly used equation, which is based on number average molecular weights (Mn) of the precursor and coupled product. The results indicated that an improvement in accuracy could be achieved by instead using refractive index (RI) signal height ratios under the peak molecular weight (Mp) of each component, with all calculations being within 0.05 of the true Xc of the fabricated "product" mixture (compared to greater than 0.10 average error using the more established method) when the sample mixture had nominal molecular weights of 2500 and 5000 Da. Moreover, when "precursor" and "coupled" pairs mixed were not related as a simple doubling of molecular weight, the calculation method presented here remained effective at determining the content of the mixture, especially at higher Xc values (>0.45). This second case is important for experiments that may link polymer chains together with a spacer, such as a radical trap, a triazole, or even larger structure such as an oligomer.
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Affiliation(s)
- Ching Pan
- Department of Chemistry and Biochemistry, Santa Clara University, 500 El Camino Real, Santa Clara, CA 95053, USA.
| | - Eric Tillman
- Department of Chemistry and Biochemistry, Santa Clara University, 500 El Camino Real, Santa Clara, CA 95053, USA.
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Gody G, Maschmeyer T, Zetterlund PB, Perrier S. Pushing the Limit of the RAFT Process: Multiblock Copolymers by One-Pot Rapid Multiple Chain Extensions at Full Monomer Conversion. Macromolecules 2014. [DOI: 10.1021/ma402435n] [Citation(s) in RCA: 186] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Guillaume Gody
- Department
of Chemistry, The University of Warwick, Gibbet Hill, Coventry, CV4 7AL, United Kingdom
- Laboratory
of Advanced Catalysis for Sustainability, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Thomas Maschmeyer
- Laboratory
of Advanced Catalysis for Sustainability, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Per B. Zetterlund
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Sébastien Perrier
- Department
of Chemistry, The University of Warwick, Gibbet Hill, Coventry, CV4 7AL, United Kingdom
- Faculty
of Pharmacy and Pharmaceutical Sciences, Monash University, 381
Royal Parade, Parkville, VIC 3052, Australia
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Valente CJ, Schellenberger AM, Tillman ES. Dimerization of Poly(methyl methacrylate) Chains Using Radical Trap-Assisted Atom Transfer Radical Coupling. Macromolecules 2014. [DOI: 10.1021/ma5001805] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christopher J. Valente
- Department
of Chemistry, Bucknell University, Lewisburg, Pennsylvania 17837, United States
| | | | - Eric S. Tillman
- Department
of Chemistry, Bucknell University, Lewisburg, Pennsylvania 17837, United States
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Ranieri K, Vandenbergh J, Barner-Kowollik C, Junkers T. Nitrone-Mediated Radical Coupling of Polymers Derived from Reverse Iodine-Transfer Polymerization. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201300740] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kayte Ranieri
- Polymer Reaction Design (PRD), Institute for Materials Research (imo-imomec); Hasselt University; Agoralaan Building D 3590 Diepenbeek Belgium
| | - Joke Vandenbergh
- Polymer Reaction Design (PRD), Institute for Materials Research (imo-imomec); Hasselt University; Agoralaan Building D 3590 Diepenbeek Belgium
| | - Christopher Barner-Kowollik
- Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie; Karlsruhe Institute of Technology (KIT); Engesserstr. 18 76128 Karlsruhe Germany
- Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Thomas Junkers
- Polymer Reaction Design (PRD), Institute for Materials Research (imo-imomec); Hasselt University; Agoralaan Building D 3590 Diepenbeek Belgium
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Kermagoret A, Nakamura Y, Bourguignon M, Detrembleur C, Jérôme C, Yamago S, Debuigne A. Expanding the Scope of Controlled Radical Polymerization via Cobalt-Tellurium Radical Exchange Reaction. ACS Macro Lett 2014; 3:114-118. [PMID: 35651121 DOI: 10.1021/mz400635h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Cobalt-mediated radical polymerization (CMRP) and tellurium-mediated radical polymerization (TERP) were combined for the first time, offering new perspectives in the precision design of macromolecular structures. In particular, the present work highlights the benefits of this strategy for the synthesis of novel poly(vinyl acetate)-based block copolymers. A range of well-defined poly(vinyl acetate)s (PVAc) were first produced via CMRP using the bis(acetylacetonato)cobalt(II) complex (Co(acac)2) as a regulating agent. Substitution of a methyltellanyl moiety for Co(acac)2 at the ω-chain end of the precursor was then achieved upon treatment with dimethylditelluride. In contrast to the PVAc prepared by TERP, the ones produced by sequential CMRP and Co/Te exchange reaction almost exclusively consist of regular head-to-tail-TeMe chain-end species that can be activated by TERP. Ultimately, a series of monomers problematic in Co(acac)2-mediated radical polymerization including N-isopropylacrylamide (NIPAM), 2-(dimethylamino)ethyl acrylate (ADAME), n-butyl acrylate (BA), isoprene (IP), and vinylimidazole (NVIm) were polymerized by TERP from the PVAc-TeMe macroinitiators leading to novel diblock copolymers that cannot be made by each technique used separately.
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Affiliation(s)
- Anthony Kermagoret
- Center
for Education and Research on Macromolecules (CERM), Department of
Chemistry, University of Liège (ULg), Sart-Tilman, B6a, 4000 Liège, Belgium
| | - Yasuyuki Nakamura
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Maxime Bourguignon
- Center
for Education and Research on Macromolecules (CERM), Department of
Chemistry, University of Liège (ULg), Sart-Tilman, B6a, 4000 Liège, Belgium
| | - Christophe Detrembleur
- Center
for Education and Research on Macromolecules (CERM), Department of
Chemistry, University of Liège (ULg), Sart-Tilman, B6a, 4000 Liège, Belgium
| | - Christine Jérôme
- Center
for Education and Research on Macromolecules (CERM), Department of
Chemistry, University of Liège (ULg), Sart-Tilman, B6a, 4000 Liège, Belgium
| | - Shigeru Yamago
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Antoine Debuigne
- Center
for Education and Research on Macromolecules (CERM), Department of
Chemistry, University of Liège (ULg), Sart-Tilman, B6a, 4000 Liège, Belgium
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