Charlotte Williams Research

Department of Chemistry University of Oxford

Di-Magnesium and Zinc Catalysts for the Copolymerization of Phthalic Anhydride and Cyclohexene Oxide

P.K. Saini, C. Romain, Y. Zhu and C.K. Williams, Polym. Chem., 2014, 5, 6068.


Dinuclear Metal Catalysts: Improved Performance of Heterodinuclear Mixed Catalysts for CO2-Epoxide Copolymerization

P.K. Saini, C. Romain and C.K. Williams, Chem. Commun., 2014, 50, 4164.


Chemoselective Polymerization Control: From Mixed-Monomer Feedstock to Copolymers

C. Romain and C.K. Williams, Angew. Chem. Int. Ed., 2014, 53, 1607.


Bacterial Cellulose Nanopaper as Reinforcement for Polylactide Composites: Renewable Thermoplastic Nanopapreg

T. Montrikittiphant, M. Tang, K.Y. Lee, C.K. Williams and A. Bismarck, Macromol. Rapid Commun., 2014, 35, 1640.


Mononuclear Phenolate Diamine Zinc Hydride Complexes and Their Reactions with CO2

N.J. Brown, J.E. Harris, X. Yin, I. Silverwood, A.J.P. White, S.G. Kazarian, K. Hellgardt, M.S.P. Shaffer and C.K. Williams, Organometallics, 2014, 33, 1112.


Metal-Size Influence in Iso-Selective Lactide Polymerization

C. Bakewell, A.J.P. White, N.J. Long and C.K. Williams, Angew. Chem. Int. Ed., 2014, 9226.


An Attenuated Total Reflection Fourier Transform Infrared (Atr Ft-Ir) Spectroscopic Study of Gas Adsorption on Colloidal Stearate-Capped Zno Catalyst Substrate

I.P. Silverwood, C.W. Keyworth, N.J. Brown, M.S.P. Shaffer, C.K. Williams, K. Hellgardt, G.H. Kelsall and S.G. Kazarian, Appl. Spectrosc., 2014, 68, 88.


Porous Copolymers of ε-Caprolactone as Scaffolds for Tissue Engineering

M. Tang, M. Purcell, J. A. M. Steele, K. Y. Lee, S. McCullen, K. M. Shakesheff, A. Bismarck, M. M. Stevens, S. M. Howdle and C. K. Williams, Macromolecules, 2013, 46, 8136.


Yttrium Phosphasalen Initiators for Rac-Lactide Polymerization

C. Bakewell, C. Thi-Phuong-Anh, X. F. Le Goff, N. J. Long, A. Auffrant and C. K. Williams, Organometallics, 2013, 32, 1475.


Pyrroloindacenodithiophene Polymers: The Effect of Molecular Structure on OFET Performance

J. E. Donaghey, E. H. Sohn, R. S. Ashraf, T. D. Anthopoulos, S. E. Watkins, K. Song, C. K. Williams and I. McCulloch, Polym. Chem., 2013, 4, 3537.


Phosphinate Stabilised ZnO and Cu Colloidal Nanocatalysts for CO2 Hydrogenation to Methanol

N. J. Brown, J. Weiner, K. Hellgardt, M. S. P. Shaffer, and C. K. Williams, Chem. Commun., 2013, 49, 11074.


8-Quinolinolato Gallium Complexes: Iso-Selective Initiators for Rac-Lactide Polymerization

C. Bakewell, A. J. P. White, N. J. Long, and C. K. Williams, Inorg. Chem., 2013, 52, 12561.


Organometallic Route to Surface-Modified ZnO Nanoparticles Suitable for in Situ Nanocomposite Synthesis: Bound Carboxylate Stoichiometry Controls Particle Size or Surface Coverage

K. L. Orchard, M. S. P. Shaffer, and C. K. Williams, Chem. Mater., 2012, 24, 2443.


Carbohydrate Derived Copoly(Lactide) as the Compatibilizer for Bacterial Cellulose Reinforced Polylactide Nanocomposites

K. Y. Lee, M. Tang, C. K. Williams and A. Bismarck, Compos. Sci. Tech., 2012, 72, 1646.


Efficient Magnesium Catalysts for the Copolymerization of Epoxides and CO2; Using Water to Synthesize Polycarbonate Polyols

M. R. Kember and C. K. Williams, J. Am. Chem. Soc., 2012, 134, 15676.


Di-Cobalt(II) Catalysts for the Copolymerisation of CO2 and Cyclohexene Oxide: Support for a Dinuclear Mechanism?

M. R. Kember, F. Jutz, A. Buchard, A. J. P. White, and C. K. Williams, Chem. Sci., 2012, 3, 1245.


Triblock Copolymers from Lactide and Telechelic Poly(Cyclohexene Carbonate)

M. R. Kember, J. Copley, A. Buchard and C. K. Williams, Polym. Chem., 2012, 3, 1196.


Phosphasalen Yttrium Complexes: Highly Active and Stereoselective Initiators for Lactide Polymerization

T. P. A. Cao, A. Buchard, X. F. Le Goff, A. Auffrant and C. K. Williams, Inorg. Chem., 2012, 51, 2157.


Experimental and Computational Investigation of the Mechanism of Carbon Dioxide/Cyclohexene Oxide Copolymerization Using a Dizinc Catalyst

A. Buchard, F. Jutz, M. R. Kember, A. J. P. White, H. S. Rzepa, and C. K. Williams, Macromolecules, 2012, 45, 6781.


Bis(8-Quinolinolato)Aluminum Ethyl Complexes: Iso-Selective Initiators for Rac-Lactide Polymerization

C. Bakewell, R. H. Platel, S. K. Cary, S. M. Hubbard, J. M. Roaf, A.C. Levine, A. J. P. White, N. J. Long, M. Haaf, and C. K. Williams, Organometallics, 2012, 31, 4729.


Yttrium Phosphasalen Initiators for Rac-Lactide Polymerization: Excellent Rates and High Iso-Selectivities

C. Bakewell, T. P. A. Cao, N. Long, X. F. Le Goff, A. Auffrant and C.K. Williams, J. Am. Chem. Soc., 2012, 134, 20577.


Bis(Phosphinic)Diamido Yttrium Amide, Alkoxide, and Aryloxide Complexes: An Evaluation of Lactide Ring-Opening Polymerization Initiator Efficiency

R. H. Platel, A. J. P. White and C. K. Williams, Inorg. Chem., 2011, 50, 7718


Solvent Dependence of the Structure of Ethylzinc Acetate and Its Application in Co(2)/Epoxide Copolymerization

K. L. Orchard, J. E. Harris, A. J. P. White, M. S. P. Shaffer and C. K. Williams, Organometallics, 2011, 30, 2223


The Tuning of the Energy Levels of Dibenzosilole Copolymers and Applications in Organic Electronics

C. W. Keyworth, K. L. Chan, J. G. Labram, T. D. Anthopoulos, S. E. Watkins, M. McKiernan, A. J. P. White, A. B. Holmes and C. K. Williams, J. Mater. Chem., 2011, 21, 11800


Catalysts for Co2/Epoxide Copolymerisation

M. R. Kember, A. Buchard and C. K. Williams, Chem. Commun., 2011, 47, 141


Mechanistic Investigation and Reaction Kinetics of the Low-Pressure Copolymerization of Cyclohexene Oxide and Carbon Dioxide Catalyzed by a Dizinc Complex

F. Jutz, A. Buchard, M. R. Kember, S. B. Fredrickson and C. K. Williams, J. Am. Chem. Soc., 2011,133,17395


Polylactides with Aldaric Ester End Groups or Chain Extending Groups

A. Haider and C. K. Williams, CRC, 2011, 14, 736


Pyrroloindacenodithiophene Containing Polymers for Organic Field Effect Transistors and Organic Photovoltaics

J. E. Donaghey, R. S. Ashraf, Y. Kim, Z. G. Huang, C. B. Nielsen, W. Zhang, B. Schroeder, C. R. G. Grenier, C. T. Brown, P. D'Angelo, J. Smith, S. Watkins, K. Song, T. D. Anthopoulos, J. R. Durrant, C. K. Williams and I. MuCulloch, J. Mater. Chem., 2011, 18744


A Bimetallic Iron(Iii) Catalyst for Co2/Epoxide Coupling

A. Buchard, M. R. Kember, K. G. Sandeman and C. K. Williams, Chem. Commun., 2011, 47, 212


Recent Developments in Catalytic Activation of Renewable Resources for Polymer Synthesis

C. Bakewell, J. Weiner, A. Buchard and C. K. Williams, Topics in Organometallic Chemistry, Special Issue of Green Chemistry, 2011, 39, 175


Tailoring Polylactide Degradation: Copolymerization of a Carbohydrate Lactone and S,S-Lactide

M. Tang, Y. X. Dong, M. M. Stevens and C. K. Williams, Macromolecules, 2010, 43, 7556


An Overview of CO2 Capture Technologies

N. MacDowell, N. Florin, A. Buchard, J. Hallett, A. Galindo, G. Jackson, C. S. Adjiman, C. K. Williams, N. Shah and P. Fennell, Energy Environ. Sci., 2010, 3, 1645


Highly Active Di- and Trimetallic Cobalt Catalysts for the Copolymerization of CHO and Co2 at Atmospheric Pressure

M. R. Kember, A. J. P. White and C. K. Williams, Macromolecules, 2010, 43, 2291


Charge Recombination and Exciton Annihilation Reactions in Conjugated Polymer Blends

I. A. Howard, J. M. Hodgkiss, X. Zhang, K. R. Kirov, H. A. Bronstein, C. K. Williams, R. H. Friend, S. Westenhoff and N. C. Greenham, J. Am. Chem. Soc., 2010, 132, 328


Iminophosphorane Neodymium(Iii) Complexes as Efficient Initiators for Lactide Polymerization

A. Buchard, R. H. Platel, A. Auffrant, X. F. Le Goff, P. Le Floch and C. K. Williams, Organometallics, 2010, 29, 2892


Pressure-Induced Delocalization of Photoexcited States in a Semiconducting Polymer

S. Albert-Seifried, J. M. Hodgkiss, F. Laquai, H. A. Bronstein, C. K. Williams and R. H. Friend, Phys. Rev. Lett., 2010, 105, 195501