个人简介

Stuart undertook his PhD research into the kinetics of RAFT-mediated living polymerisations jointly between the CSIRO, the Cooperative Research Centre for Polymers and the Key Centre for Polymer Colloids. Following two years' post-doctoral research at the University of Melbourne with the AFM, sonochemistry and nanoparticle groups, he moved to Bristol to take up a Marie Curie Individual Fellowship. He was appointed to the position of Lecturer in Polymer Chemistry at the University of Bristol in 2009 and Senior Lecturer in Chemical Engineering at the University of New South Wales in 2013.

研究领域

Chemical Engineering

Stuart's principal research interest is in developing understanding of the relationships between the structures adopted by molecules at interfaces and the physical properties of these interfaces. Of particular interest have been polymers at the solid-liquid interface of nanoparticles dispersed in water. Such particles have high surface areas to be used for further chemistry, can have useful electronic properties for energy applications and are widely used from personal care formulations through to drug delivery vehicles. The potential economic and environmental impacts of improving our understanding of particulate dispersions are quite high. Stuart's approach to understanding molecules at surfaces is to bring together various analytical techniques with numerical simulations to help gain the most from the available experimental data. He has extensively used solvent relaxation NMR as a way of characterising near-surface polymer/surfactant complexes has been a workhorse technique for my research in recent years. Through solvent relaxation NMR, in concert with light scattering and small-angle neutron scattering, he demonstrated antagonistic interactions exist between commonly used polymers and surfactants that leads to the destabilisation of nanoparticle dispersions. He also has a long-standing collaboration with US start-up company XiGo Nanotools to design and build bespoke, miniaturised hardware for solvent relaxation NMR and to develop suitable software for controlling the instrument and analysing the data. The instrument is commercially available as the “Acorn Area” with the “AreaQuant” software for measuring the surface area of colloidal dispersions. Stuart also uses neutron scattering and neutron reflection to obtain detailed structural information on soft-condensed matter systems. He worked on the design, construction and commissioning of a new sample environment for neutron reflection experiments to study the effects of confinement on near-surface structures. Collisions between colloidal particles are one form of confinement, as is lubrication between surfaces. He recently published the designs for the cell along with studies of polyelectrolyte multilayers. Studying the liquid-liquid interface can pose additional challenges Stuart has made use of microfluidic techniques to create of stable, high surface area emulsions. These emulsions are model systems to explore the uses of NMR for the characterisation of the drop size of emulsions as well as templates for further synthesis.

近期论文

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Abbott SB; De Vos WM; Mears LLE; Skoda M; Dalgliesh R; Edmondson S; Richardson RM; Prescott SW, 2016, 'Switching the Interpenetration of Confined Asymmetric Polymer Brushes', Macromolecules, vol. 49, no. 11, pp. 4349 - 4357, http://dx.doi.org/10.1021/acs.macromol.6b00310 Fairhurst D; Cosgrove T; Prescott SW, 2016, 'Relaxation NMR as a tool to study the dispersion and formulation behavior of nanostructured carbon materials', Magnetic Resonance in Chemistry, vol. 54, no. 6, pp. 521 - 526, http://dx.doi.org/10.1002/mrc.4218 Cheesman BT; Gates PJ; Castle TC; Cosgrove T; Prescott SW, 2015, 'Linear and star architecture methacrylate-functionalised PDMS', Materials Today Communications, vol. 3, pp. 122 - 129, http://dx.doi.org/10.1016/j.mtcomm.2015.01.005 Wei Z; Prescott SW, 2015, 'Scattering approaches to probing surface layers under confinement', Current Opinion in Colloid and Interface Science, vol. 20, no. 4, pp. 253 - 260, http://dx.doi.org/10.1016/j.cocis.2015.09.001 Cosgrove T; Swier S; Schmidt RG; Muangpil S; Espidel Y; Griffiths PC; Prescott SW, 2015, 'Impact of End-Tethered Polyhedral Nanoparticles on the Mobility of Poly(dimethylsiloxane)', Langmuir: the ACS journal of surfaces and colloids, vol. 31, no. 30, pp. 8469 - 8477, http://dx.doi.org/10.1021/acs.langmuir.5b01211 Mears LLE; de Vos WM; Prescott SW; Magro G; Rogers S; Skoda MWA; Watkins EB; Zimmermann H; Richardson RM, 2015, 'The adsorption of fluorinated dopants at the surface of 5CB: a neutron reflection study', Liquid Crystals, vol. 42, no. 5-6, pp. 900 - 908, http://dx.doi.org/10.1080/02678292.2014.986769 Cattoz B; De Vos WM; Cosgrove T; Crossman M; Espidel Y; Prescott SW, 2015, 'Interpolymer complexation: Comparisons of bulk and interfacial structures', Langmuir: the ACS journal of surfaces and colloids, vol. 31, no. 14, pp. 4151 - 4159, http://dx.doi.org/10.1021/la503870b Abbott SB; De Vos WM; Mears LLE; Cattoz B; Skoda MWA; Barker R; Richardson RM; Prescott SW, 2015, 'Is osmotic pressure relevant in the mechanical confinement of a polymer brush?', Macromolecules, vol. 48, no. 7, pp. 2224 - 2234, http://dx.doi.org/10.1021/ma502246r Rajesh UC; Wang J; Prescott S; Tsuzuki T; Rawat DS, 2015, 'RGO/ZnO Nanocomposite: An efficient, sustainable, heterogeneous, amphiphilic catalyst for synthesis of 3-substituted indoles in water', ACS Sustainable Chemistry and Engineering, vol. 3, no. 1, pp. 9 - 18, http://dx.doi.org/10.1021/sc500594w De Vos WM; Cattoz B; Avery MP; Cosgrove T; Prescott SW, 2014, 'Adsorption and surfactant-mediated desorption of poly(vinylpyrrolidone) on plasma- and piranha-cleaned silica surfaces', Langmuir: the ACS journal of surfaces and colloids, vol. 30, no. 28, pp. 8425 - 8431, http://dx.doi.org/10.1021/la501877v Cattoz B; de Vos WM; Cosgrove T; Crossman M; Appavou MS; Prescott SW, 2014, 'Complexation of polymeric stabilisers in solution and at the silica nanoparticle interface', Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 449, no. 1, pp. 57 - 64, http://dx.doi.org/10.1016/j.colsurfa.2014.02.039 Abbott SB; De Vos WM; Mears LLE; Barker R; Prescott SW; Richardson RM, 2014, 'Hydration of odd-even terminated polyelectrolyte multilayers under mechanical confinement', Macromolecules, vol. 47, no. 10, pp. 3263 - 3273, http://dx.doi.org/10.1021/ma500557m Alexander S; Cosgrove T; De Vos WM; Castle TC; Prescott SW, 2014, 'Aggregation behavior of polyisoprene-pluronic graft copolymers in selective solvents', Langmuir: the ACS journal of surfaces and colloids, vol. 30, no. 20, pp. 5747 - 5754, http://dx.doi.org/10.1021/la500961n Cooper CL; Cosgrove T; Van Duijneveldt JS; Murray M; Prescott SW, 2013, 'Competition between polymers for adsorption on silica: A solvent relaxation NMR and small-angle neutron scattering study', Langmuir: the ACS journal of surfaces and colloids, vol. 29, no. 41, pp. 12670 - 12678, http://dx.doi.org/10.1021/la402556g De Vos WM; Mears LLE; Richardson RM; Cosgrove T; Barker R; Prescott SW, 2013, 'Nonuniform hydration and odd-even effects in polyelectrolyte multilayers under a confining pressure', Macromolecules, vol. 46, no. 3, pp. 1027 - 1034, http://dx.doi.org/10.1021/ma3021773 Dane TG; Cresswell PT; Pilkington GA; Lilliu S; MacDonald JE; Prescott SW; Bikondoa O; Faul CFJ; Briscoe WH, 2013, 'Oligo(aniline) nanofilms: From molecular architecture to microstructure', Soft Matter, vol. 9, no. 44, pp. 10501 - 10511, http://dx.doi.org/10.1039/c3sm51407b Cooper CL; Cosgrove T; Van Duijneveldt JS; Murray M; Prescott SW, 2013, 'The use of solvent relaxation NMR to study colloidal suspensions', Soft Matter, vol. 9, no. 30, pp. 7211 - 7228, http://dx.doi.org/10.1039/c3sm51067k Cattoz B; Cosgrove T; Crossman M; Prescott SW, 2012, 'Surfactant-mediated desorption of polymer from the nanoparticle interface', Langmuir: the ACS journal of surfaces and colloids, vol. 28, no. 5, pp. 2485 - 2492, http://dx.doi.org/10.1021/la204512d Cattoz B; De Vos WM; Cosgrove T; Crossman M; Prescott SW, 2012, 'Manipulating interfacial polymer structures through mixed surfactant adsorption and complexation', Langmuir: the ACS journal of surfaces and colloids, vol. 28, no. 15, pp. 6282 - 6290, http://dx.doi.org/10.1021/la300282m