Charlotte Williams Research

Department of Chemistry University of Oxford

Switchable Catalysis Improves the Properties of CO2-Derived Polymers: Poly(cyclohexene carbonate-b-ε-decalactone-b-cyclohexene carbonate) Adhesives, Elastomers, and Toughened Plastics

G. S. Sulley, G. L. Gregory, Thomas T. D. Chen, L. P. Carrodeguas, G. Trott, A. Santmarti, K. Lee, N. J. Terrill, and C. K. Williams, J. Am. Chem. Soc, 2020, ASAP

Ti(IV)–Tris(phenolate) Catalyst Systems for the Ring-Opening Copolymerization of Cyclohexene Oxide and Carbon Dioxide

S. K. Raman, A. C. Deacy, L. P. Carrodeguas, N. V. Reis, R. W. F. Kerr, A. Phanopoulos, S. Morton, M. G. Davidson and C. K. Williams, Organometallics, 2020, ASAP

Metal Complexes for Catalytic Polymerizations

C. K. Williams and K. Nozaki, Inorg. Chem., 2019, Advance Article

Heterodinuclear complexes featuring Zn(II) and M = Al(III), Ga(III) or In(III) for cyclohexene oxide and CO2 copolymerisation

A. C. Deacy, C. Durr, and C. K. Williams, Dalton Trans., 2019, Advance Article

The technological and economic prospects for CO2 utilization and removal

C.Hepburn, E. Adlen, J. Beddington, E. A. Carter, S. Fuss, N. Mac Dowell, J. C. Minx, P. Smith and C. K. Williams, Nature, 2019, 575, 87-97

Orthogonal functionalization of alternating polyesters: selective patterning of (AB)n sequences

N. Yi, T. T. D. Chen, Y. Unruangsri, Y. Zhu, and C. K. Williams, Chem. Sci., 2019, 10, 9974-9980

Part of the themed collection 2019 Chemical Science HOT Article Collection

Easy access to oxygenated block polymers via switchable catalysis

T. Stößer, G. S. Sulley, G. L. Gregory, and C. K. Williams, Nat. Commun., 2019, 10, 2668

This article was selected for Editor's Highlights (P. Saini)

Waste not, want not: CO2 (re)cycling into block polymers

S. Raman, R. Raja, P. L. Arnold, M. G. Davidson, C. K. Williams, Chem. Comm., 2019, 55, 7315-7318

Heterodinuclear zinc and magnesium catalysts for epoxide/CO2 ring opening copolymerizations

G. Trott, J. A. Garden, C. K. Williams, Chem. Sci., 2019, 10, 4618-4627

This article was selected as an Editor's Choice (Serena DeBeer)

Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts

J. Y.C. Lim, N. Yuntawattana, P. Beer, and C. K. Williams, Angew. Chem. Int. Ed., 2019, 8, 6007–6011.

Metabolically Active, Fully Hydrolysable Polymersomes

Y. Zhu, A. Poma, L. Rizzello, V. M. Gouveia, L. Ruiz‐Perez, G. Battaglia, C. K. Williams, Angew. Chem. Int. Ed., 2019, 58, 4581-4586

Mapping the Origins of Luminescence in ZnO Nanowires by STEM-CL

O. W. Kennedy, E. R. White, A. Howkins, C. K. Williams, I. W. Boyd, P. A. Warburton and M. S. P. Shaffer, J. Phys. Chem. Lett., 2019, 10 , 386–392

Polynuclear alkoxy–zinc complexes of bowl-shaped macrocycles and their use in the copolymerisation of cyclohexene oxide and CO2

J. R. Pankhurst, S. Paul, Y. Zhu, C. K. Williams and J. B. Love, Dalton Trans., 2019, 48, 4887-4893 

The influence of oxygen on the surface interaction between CO2 and copper studied by ambient pressure X-ray photoelectron spectroscopy

A. Regoutz, G. Kerhervea, I. Villar-Garcia, C. K. Williams, D. J. Payne, Surface Science, 2018, 677, 121–127

Groups 1, 2 and Zn(II) Heterodinuclear Catalysts for Epoxide/CO2 Ring-Opening Copolymerization

A. C. Deacy, C. D. Durr, J. A. Garden, A. J. P. White and  C. K. Williams, Inorg. Chem., 2018, 57, 15575

New Coordination Modes for Modified Schiff Base Ti(IV) Complexes and Their Control over Lactone Ring-Opening Polymerization Activity

C. D. Durr and  C. K. Williams, Inorg. Chem., 2018, 57, 14240

Switch Catalysis to Deliver Multi‐Block Polyesters From Mixtures of Propene Oxide, Lactide and Phthalic Anhydride

 T. Stoesser, D. Mulryan and C. K. Williams, Angew. Chem. Int. Ed., 201857, 16893–16897

Pentablock Copolymer from Tetracomponent Monomer Mixture Using a Switchable Dizinc Catalyst

T. T. D. Chen, Y. Zhu and C. K. Williams, Macromolecules, 2018, 51, 5346

Indium Catalysts for Low-Pressure CO2/Epoxide Ring-Opening Copolymerisation: Evidence for a Mononuclear Mechanism

A. Thevenon, A. Cyriac, D. Myers, A. J. P. White, C. B. Durr and C. K. Williams, J. Am. Chem. Soc., 2018, 140, 6893

Multiblock Polyesters Demonstrating High Elasticity and Shape Memory Effects

Y. Zhu, M. R. Radlauer, D. K. Schneiderman, M. S. P. Shaffer, M. A. Hillmyer and C. K. Williams, Macromolecules, 2018, 51, 2466

Selective polymerization catalysis from monomer mixtures: using a commercial Cr salen catalyst to access ABA block polyesters

T. Stößer and C. K. Williams, Angew. Chem. Int. Ed., 2018, 57, 6337-6341

Layered zinc hydroxide monolayers by hydrolysis of organozincs

A. H. M. Leung, S. D. Pike, A. J. Clancy, H. C. Yau, W. J. Lee, K. L. Orchard, M. S. P. Shaffer and C. K. Williams, Chem. Sci., 2018, 9, 2135

PdIn intermetallic nanoparticles for the Hydrogenation of CO2 to Methanol

A. Garcia-Trenco, A. Regoutz, E. R. White, D. J. Payne, M. S. P. Shaffer and C. K. Williams, Appl. Catal. B: Environment2018, 220, 9

'Switch' catalysis: from monomer mixtures to sequence-controlled block copolymers.

T. Stößer, T. T. D. Chen, Y. Zhu and C. K. Williams, Phil. Trans., R. Soc. A., 2017, 376, 20170066

Bio-derived polymers for coating applications: comparing poly(limonene carbonate) and poly(cyclohexadiene carbonate).

T. Stößer, C. Li, J. Unruangsri, P. K. Saini, R. J. Sablong, M. A. R. Meier, C. K. Williams and C. Koning, Polym. Chem., 2017, 8, 6099

Ring opening polymerization of macrolactones: high conversions and activities using an yttrium catalyst.

D. Myers, T. Witt, A. Cyriac, M. Bown, S. Mecking and C. K. Williams, Polym. Chem., 2017, 8, 5780

Colloidal Cu/ZnO catalysts for the hydrogenation of carbon dioxide to methanol: investigating catalyst preparation and ligand effects

S. D. Pike, A. Garcia-Trenco, E. R. White, A. H. M. Leung, J. Weiner, M. S. P. Shaffer and C. K. Williams, Catal. Sci. Technol.2017, 7, 3842

Di-Zinc–Aryl Complexes: CO2 Insertions and Applications in Polymerisation Catalysis

C. Romain, J. A. Garden, G. Trott, A. Bouchard, A. J. P. White and C. K. Williams, Chem. Eur. J.2017, 23, 30, 7367.

Thermally Stable Zinc Disalphen Macrocycles Showing Solid-​State and Aggregation-​Induced Enhanced Emission

J. A. Marafie, D. D. C. Bradley and C. K. Williams, Inorg. Chem.2017, 56, 10, 5688.

Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac-​Lactide Polymerizations

D. Myers, A. J. P. White, C. M. Forsyth, M. Bown and C. K. Williams, Angew. Chem. Int. Ed.2017, 56, 19, 5277.

Zinc versus Magnesium: Orthogonal Catalyst Reactivity in Selective Polymerizations of Epoxides, Bio-​derived Anhydrides and Carbon Dioxide

P. K. Saini, G. Fiorani, R. T. Mathers and C. K. Williams, Chem. Eur. J.2017, 23, 18, 4260.

Reversible Redox Cycling of Well-Defined, Ultrasmall Cu/Cu2O Nanoparticles

S. D. Pike, E. R. White, A. Regoutz, N. Sammy, D. J. Payne, C. K. Williams and M. S. P. Shaffer, ACS Nano2017, 11, 3, 2714.

Heterodinuclear titanium/zinc catalysis: synthesis, characterization and activity for CO2/epoxide copolymerization and cyclic ester polymerization

J. A. Garden, A. J. P. White and C. K. Williams, Dalton Trans, 2017, 46, 8, 2532.

Pd2Ga-Based Colloids as Highly Active Catalysts for the Hydrogenation of CO2 to Methanol

A. Garcia-Trenco, E. R. White, A. Regoutz, D. J. Payne, M. S. P. Shaffer and C. K. Williams, ACS Catal.2017, 7, 1186.

Sustainable Polymers from Renewable Resources

Y. Zhu, C. Romain and C. K. Williams, Nature, 2016, 540, 354.

Simple Phosphinate Ligands Access Zinc Clusters Identified in the Synthesis of Zinc Oxide Nanoparticles

S. D. Pike, E. R. White, M. S. P. Shaffer and C. K. Williams, Nature Commun., 2016.

Dizinc Lactide Polymerization Catalysis: Hyperactivity by Control of Ligand Conformation and Metallic Cooperativity

A. Thevenon, C. Romain, M. S. Bennington, A. J. P. White, H. J. Davidson, S. Brooker and C. K. Williams, Angew. Chem. Int. Ed., 2016, 55, 8680

Chemoselective Polymerizations from Mixtures of Epoxide, Lactone, Anhydride and Carbon Dioxide

C. Romain, Y. Zhu, P. Dingwall, S. Paul, H. S. Rzepa, A. Buchard and C. K. Williams, J. Am. Chem. Soc., 2016, 138, 4120

A One-Step Cu/ZnO Quasi-Homogeneous Catalyst for DME Production from Syn-Gas

A. Garcia-Trenco, E. R. White, M. S. P. Shaffer and C. K. Williams, Cat. Sci. Tech., 2016, 6, 4389

To React the Impossible Ring

D. Myers, A. Cyriac and C. K. Williams, Nature Chemistry, 2016, 8, 3-4.

Catalysts for CO2/Epoxide Ring-Opening Copolymerization

G. Trott, P.K. Saini, and C.K. Williams, Philos. Trans. R. Soc. A-Math. Phys. Eng. Sci., 2016, 374.

Techno-Economic Assessment of the Production of Phthalic Anhydride from Corn Stover

S. Giarola, C. Romain, C.K. Williams, J.P. Hallett, and N. Shah, Chem. Eng. Res. Des., 2016, 107, 181-94.

Selective Polymerization Catalysis: Controlling the Metal Chain End Group to Prepare Block Copolyesters

Y. Zhu, C. Romain and C. K. Williams, J. Am. Chem. Soc., 2015, 137, 12179.

Greater Than the Sum of Its Parts: A Heterodinucelar Polymerization Catalyst

J. A. Garden, P. K. Saini and C. K. WilliamsJ. Am. Chem. Soc.2015, 137, 15078.

Dinuclear Zinc Salen Catalysts for the Ring Opening Copolymerization of Epoxides and Carbon Dioxide or Anhydrides

A. Thevenon, J. A. Garden, A. J. P. White and C. K. WilliamsInorg. Chem., 2015, 54, 11906.

Influences of a Dizinc Catalyst and Bifunctional Chain Transfer Agents on the Polymer Architecture in the Ring-Opening Polymerization of Epsilon-Caprolactone

Y. Zhu, C. Romain, V. Poirier and C. K. WilliamsMacromolecules, 2015, 48, 2407

Ring-Opening Copolymerization (Rocop): Synthesis and Properties of Polyesters and Polycarbonates

S. Paul, Y. Zhu, C. Romain, R. Brooks, P.K. Saini and C.K. Williams, Chem. Commun., 2015, 51, 6459.

Carbon Dioxide Capture and Utilization: Using Dinuclear Catalysts to Prepare Polycarbonates

N. Yi, J. Unruangsri, J. Shaw and C.K. Williams, Faraday Discuss., 2015, 183, 67.

Combining Sustainable Polymerization Routes for the Preparation of Polyesters, Polycarbonates, and Copolymers, in Green Polymer Chemistry: Biobased Materials and Biocatalysis

C. Romain and C.K. Williams; H.N. Cheng, R.A. Gross, and P.B. Smith, Editors. 2015, p. 135-46.

Renewable Polycarbonates and Polyesters from 1,4-Cyclohexadiene

M. Winkler, C. Romain, M.A.R. Meier and C.K. Williams, Green Chem., 2015, 17, 300.

Macrocyclic Dizinc(II) Alkyl and Alkoxide Complexes: Reversible CO2 Uptake and Polymerization Catalysis Testing

C. Romain, M.S. Bennington, A.J.P. White, C.K. Williams and S. Brooker, Inorg. Chem., 2015, 54, 11842.

Sequence Selective Polymerization Catalysis: A New Route to ABA Block Copoly(Ester-b-Carbonate-b-Ester)

S. Paul, C. Romain, J. Shaw and C.K. Williams, Macromolecules, 2015, 48, 6047.

Scandium and Yttrium Phosphasalen Complexes as Initiators for Ring-Opening Polymerization of Cyclic Esters

C. Bakewell, A.J.P. White, N.J. Long and C.K. Williams, Inorg. Chem., 2015, 54, 2204.

Dual-Mechanism Antimicrobial Polymer-ZnO Nanoparticle and Crystal Violet-Encapsulated Silicone

S. Noimark, J. Weiner, N. Noor, E. Allan, C.K. Williams, M.S.P. Shaffer and I.P. Parkin, Adv. Funct. Mater., 2015, 25, 1367.

Adding Value to Power Station Captured CO2: Tolerant Zn and Mg Homogeneous Catalysts for Polycarbonate Polyol Production

A.M. Chapman, C. Keyworth, M.R. Kember, A.J.J. Lennox and C.K. Williams, ACS Catal., 2015, 5, 1581.

From Organometallic Zinc and Copper Complexes to Highly Active Colloidal Catalysts for the Conversion of CO2 to Methanol

N.J. Brown, A. Garcia-Trenco, J. Weiner, E.R. White, M. Allinson, Y. Chen, P.P. Wells, E.K. Gibson, K. Hellgardt, M.S.P. Shaffer and C.K. Williams, ACS Catal., 2015, 5, 2895.

Comparing a Series of 8-Quinolinolato Complexes of Aluminium, Titanium and Zinc as Initiators for the Ring-Opening Polymerization of Rac-Lactide

C. Bakewell, G. Fateh-Iravani, D.W. Beh, D. Myers, S. Tabthong, P. Hormnirun, A.J.P. White, N. Long and C.K. Williams, Dalton Trans., 2015, 44, 12326.