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  1. Article ; Online: Correlating Metal Redox Potentials to Co(III)K(I) Catalyst Performances in Carbon Dioxide and Propene Oxide Ring Opening Copolymerization.

    Lindeboom, Wouter / Deacy, Arron C / Phanopoulos, Andreas / Buchard, Antoine / Williams, Charlotte K

    Angewandte Chemie (International ed. in English)

    2023  Volume 62, Issue 37, Page(s) e202308378

    Abstract: Carbon dioxide copolymerization is a front-runner ... ...

    Abstract Carbon dioxide copolymerization is a front-runner CO
    Language English
    Publishing date 2023-08-07
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202308378
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Mg(ii) heterodinuclear catalysts delivering carbon dioxide derived multi-block polymers.

    Rosetto, Gloria / Deacy, Arron C / Williams, Charlotte K

    Chemical science

    2021  Volume 12, Issue 37, Page(s) 12315–12325

    Abstract: Carbon dioxide derived polymers are emerging as useful materials for applications spanning packaging, construction, house-hold goods and automotive components. To accelerate and broaden their uptake requires both more active and selective catalysts and ... ...

    Abstract Carbon dioxide derived polymers are emerging as useful materials for applications spanning packaging, construction, house-hold goods and automotive components. To accelerate and broaden their uptake requires both more active and selective catalysts and greater structural diversity for the carbon dioxide derived polymers. Here, highly active catalysts show controllable selectivity for the enchainment of mixtures of epoxide, anhydride, carbon dioxide and lactone. Firstly, metal dependent selectivity differences are uncovered using a series of dinuclear catalysts, Mg(ii)Mg(ii), Zn(ii)Zn(ii), Mg(ii)Zn(ii), and Mg(ii)Co(ii), each exposed to mixtures of bio-derived tricyclic anhydride, cyclohexene oxide and carbon dioxide (1 bar). Depending upon the metal combinations, different block structures are possible with Zn(ii)Zn(ii) yielding poly(ester-
    Language English
    Publishing date 2021-08-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d1sc03856g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Synergic Heterodinuclear Catalysts for the Ring-Opening Copolymerization (ROCOP) of Epoxides, Carbon Dioxide, and Anhydrides.

    Diment, Wilfred T / Lindeboom, Wouter / Fiorentini, Francesca / Deacy, Arron C / Williams, Charlotte K

    Accounts of chemical research

    2022  Volume 55, Issue 15, Page(s) 1997–2010

    Abstract: The development of sustainable plastic materials is an essential target of chemistry in the 21st century. Key objectives toward this goal include utilizing sustainable monomers and the development of polymers that can be chemically recycled/degraded. ... ...

    Abstract The development of sustainable plastic materials is an essential target of chemistry in the 21st century. Key objectives toward this goal include utilizing sustainable monomers and the development of polymers that can be chemically recycled/degraded. Polycarbonates synthesized from the ring-opening copolymerization (ROCOP) of epoxides and CO
    MeSH term(s) Anhydrides ; Carbon Dioxide/chemistry ; Catalysis ; Epoxy Compounds/chemistry ; Metals/chemistry ; Polymerization ; Polymers/chemistry
    Chemical Substances Anhydrides ; Epoxy Compounds ; Metals ; Polymers ; Carbon Dioxide (142M471B3J)
    Language English
    Publishing date 2022-07-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1483291-4
    ISSN 1520-4898 ; 0001-4842
    ISSN (online) 1520-4898
    ISSN 0001-4842
    DOI 10.1021/acs.accounts.2c00197
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Solid-State Chemical Recycling of Polycarbonates to Epoxides and Carbon Dioxide Using a Heterodinuclear Mg(II)Co(II) Catalyst.

    McGuire, Thomas M / Deacy, Arron C / Buchard, Antoine / Williams, Charlotte K

    Journal of the American Chemical Society

    2022  Volume 144, Issue 40, Page(s) 18444–18449

    Abstract: Polymer chemical recycling to monomers (CRM) could help improve polymer sustainability, but its implementation requires much better understanding of depolymerization catalysis, ensuring high rates and selectivity. Here, a heterodinuclear [Mg(II)Co(II)] ... ...

    Abstract Polymer chemical recycling to monomers (CRM) could help improve polymer sustainability, but its implementation requires much better understanding of depolymerization catalysis, ensuring high rates and selectivity. Here, a heterodinuclear [Mg(II)Co(II)] catalyst is applied for CRM of aliphatic polycarbonates, including poly(cyclohexene carbonate) (PCHC), to epoxides and carbon dioxide using solid-state conditions, in contrast with many other CRM strategies that rely on high dilution. The depolymerizations are performed in the solid state giving very high activity and selectivity (PCHC, TOF = 25700 h
    MeSH term(s) Carbon Dioxide ; Carbonates ; Catalysis ; Epoxy Compounds ; Polycarboxylate Cement ; Polymers
    Chemical Substances Carbonates ; Epoxy Compounds ; Polycarboxylate Cement ; Polymers ; Carbon Dioxide (142M471B3J) ; polycarbonate (25766-59-0)
    Language English
    Publishing date 2022-09-28
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c06937
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  5. Article ; Online: Insights into the Mechanism of Carbon Dioxide and Propylene Oxide Ring-Opening Copolymerization Using a Co(III)/K(I) Heterodinuclear Catalyst.

    Deacy, Arron C / Phanopoulos, Andreas / Lindeboom, Wouter / Buchard, Antoine / Williams, Charlotte K

    Journal of the American Chemical Society

    2022  Volume 144, Issue 39, Page(s) 17929–17938

    Abstract: A combined computational and experimental investigation into the catalytic cycle of carbon dioxide and propylene oxide ring-opening copolymerization is presented using a Co(III)K(I) heterodinuclear complex (Deacy, A. C. Co(III)/Alkali-Metal(I) ... ...

    Abstract A combined computational and experimental investigation into the catalytic cycle of carbon dioxide and propylene oxide ring-opening copolymerization is presented using a Co(III)K(I) heterodinuclear complex (Deacy, A. C. Co(III)/Alkali-Metal(I) Heterodinuclear Catalysts for the Ring-Opening Copolymerization of CO
    Language English
    Publishing date 2022-09-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c06921
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  6. Article ; Online: Chemical Recycling of Poly(Cyclohexene Carbonate) Using a Di-Mg

    Singer, Frances N / Deacy, Arron C / McGuire, Thomas M / Williams, Charlotte K / Buchard, Antoine

    Angewandte Chemie (International ed. in English)

    2022  Volume 61, Issue 26, Page(s) e202201785

    Abstract: Chemical recycling of polymers to true monomers is pivotal for a circular plastics economy. Here, the first catalyzed chemical recycling of the widely investigated carbon dioxide derived polymer, poly(cyclohexene carbonate), to cyclohexene oxide and ... ...

    Abstract Chemical recycling of polymers to true monomers is pivotal for a circular plastics economy. Here, the first catalyzed chemical recycling of the widely investigated carbon dioxide derived polymer, poly(cyclohexene carbonate), to cyclohexene oxide and carbon dioxide is reported. The reaction requires dinuclear catalysis, with the di-Mg
    Language English
    Publishing date 2022-05-05
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202201785
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  7. Article ; Online: Heterodinuclear Mg(II)M(II) (M=Cr, Mn, Fe, Co, Ni, Cu and Zn) Complexes for the Ring Opening Copolymerization of Carbon Dioxide/Epoxide and Anhydride/Epoxide.

    Reis, Natalia V / Deacy, Arron C / Rosetto, Gloria / Durr, Christopher B / Williams, Charlotte K

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2022  Volume 28, Issue 14, Page(s) e202104198

    Abstract: The catalysed ring opening copolymerizations (ROCOP) of carbon dioxide/epoxide or anhydride/epoxide are controlled polymerizations that access useful polycarbonates and polyesters. Here, a systematic investigation of a series of heterodinuclear Mg(II)M( ... ...

    Abstract The catalysed ring opening copolymerizations (ROCOP) of carbon dioxide/epoxide or anhydride/epoxide are controlled polymerizations that access useful polycarbonates and polyesters. Here, a systematic investigation of a series of heterodinuclear Mg(II)M(II) complexes reveals which metal combinations are most effective. The complexes combine different first row transition metals (M(II)) from Cr(II) to Zn(II), with Mg(II); all complexes are coordinated by the same macrocyclic ancillary ligand and by two acetate co-ligands. The complex syntheses and characterization data, as well as the polymerization data, for both carbon dioxide/cyclohexene oxide (CHO) and endo-norbornene anhydride (NA)/cyclohexene oxide, are reported. The fastest catalyst for both polymerizations is Mg(II)Co(II) which shows propagation rate constants (k
    Language English
    Publishing date 2022-02-17
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202104198
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  8. Article ; Online: Understanding catalytic synergy in dinuclear polymerization catalysts for sustainable polymers.

    Fiorentini, Francesca / Diment, Wilfred T / Deacy, Arron C / Kerr, Ryan W F / Faulkner, Stephen / Williams, Charlotte K

    Nature communications

    2023  Volume 14, Issue 1, Page(s) 4783

    Abstract: Understanding the chemistry underpinning intermetallic synergy and the discovery of generally applicable structure-performances relationships are major challenges in catalysis. Additionally, high-performance catalysts using earth-abundant, non-toxic and ... ...

    Abstract Understanding the chemistry underpinning intermetallic synergy and the discovery of generally applicable structure-performances relationships are major challenges in catalysis. Additionally, high-performance catalysts using earth-abundant, non-toxic and inexpensive elements must be prioritised. Here, a series of heterodinuclear catalysts of the form Co(III)M(I/II), where M(I/II) = Na(I), K(I), Ca(II), Sr(II), Ba(II) are evaluated for three different polymerizations, by assessment of rate constants, turn over frequencies, polymer selectivity and control. This allows for comparisons of performances both within and between catalysts containing Group I and II metals for CO
    Language English
    Publishing date 2023-08-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-023-40284-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Heterodinuclear complexes featuring Zn(ii) and M = Al(iii), Ga(iii) or In(iii) for cyclohexene oxide and CO

    Deacy, Arron C / Durr, Christopher B / Williams, Charlotte K

    Dalton transactions (Cambridge, England : 2003)

    2019  Volume 49, Issue 1, Page(s) 223–231

    Abstract: The ring opening copolymerisation of ... ...

    Abstract The ring opening copolymerisation of CO
    Language English
    Publishing date 2019-12-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/c9dt02918d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Understanding metal synergy in heterodinuclear catalysts for the copolymerization of CO

    Deacy, Arron C / Kilpatrick, Alexander F R / Regoutz, Anna / Williams, Charlotte K

    Nature chemistry

    2020  Volume 12, Issue 4, Page(s) 372–380

    Abstract: Carbon dioxide and epoxide copolymerization is an industrially relevant means to valorize waste and improve sustainability in polymer manufacturing. Given the value of the polymer products-polycarbonates or polyether carbonates-it could provide an ... ...

    Abstract Carbon dioxide and epoxide copolymerization is an industrially relevant means to valorize waste and improve sustainability in polymer manufacturing. Given the value of the polymer products-polycarbonates or polyether carbonates-it could provide an economic stimulus to capture and storage technologies. The process efficiency depends upon the catalyst, and previously Zn(II)Mg(II) heterodinuclear catalysts showed good performances at low carbon dioxide pressures, attributed to synergic interactions between the metals. Now, a Mg(II)Co(II) catalyst is reported that exhibits significantly better activity (turnover frequency > 12,000 h
    Language English
    Publishing date 2020-03-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2464596-5
    ISSN 1755-4349 ; 1755-4330
    ISSN (online) 1755-4349
    ISSN 1755-4330
    DOI 10.1038/s41557-020-0450-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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