Imperial College London
Alternate

ProfessorDarylWilliams

Faculty of Engineering, Department of Chemical Engineering

Professor of Particle Science
 
 
 
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Contact

 

+44 (0)20 7594 5611d.r.williams Website

 
 
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Location

 

439ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

171 results found

Heng JYY, Bismarck A, Lee AF, Wilson K, Williams DRet al., 2007, Anisotropic surface chemistry of aspirin crystals, JOURNAL OF PHARMACEUTICAL SCIENCES, Vol: 96, Pages: 2134-2144, ISSN: 0022-3549

Journal article

Yla-Maihaniemi PP, Williams DR, 2007, A comparison of frontal and nonfrontal methods for determining solid-liquid adsorption isotherms using inverse liquid chromatography, LANGMUIR, Vol: 23, Pages: 4095-4101, ISSN: 0743-7463

Journal article

Yla-Maihaniemi P, Williams DR, 2007, Novel inverse liquid chromatography detector configuration for studying solid-liquid adsorption, JOURNAL OF CHROMATOGRAPHY A, Vol: 1138, Pages: 95-100, ISSN: 0021-9673

Journal article

Heng JYY, Williams DR, 2006, Wettability of paracetamol polymorphic forms I and II, LANGMUIR, Vol: 22, Pages: 6905-6909, ISSN: 0743-7463

Journal article

Heng JYY, Thielmann F, Williams DR, 2006, The effects of milling on the surface properties of form i paracetamol crystals, PHARMACEUTICAL RESEARCH, Vol: 23, Pages: 1918-1927, ISSN: 0724-8741

Journal article

Heng JYY, Bismarck A, Lee AF, Wilson K, Williams DRet al., 2006, Anisotropic surface energetics and Wettability of macroscopic form I paracetamol crystals, LANGMUIR, Vol: 22, Pages: 2760-2769, ISSN: 0743-7463

Journal article

Heng, J Y Y, Bismarck A, Williams D Ret al., 2006, Anisotropic surface chemistry of crystalline pharmaceutical solids, AAPS PharmSciTech, Vol: 7, ISSN: 1530-9932

Journal article

Briscoe B, Williams DR, Galvin KP, 2005, Condensation on hydrosol modified polyethylene, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, Vol: 264, Pages: 101-105, ISSN: 0927-7757

Journal article

Chan KLA, Kazarian SG, Mavraki A, Williams DRet al., 2005, Fourier transform infrared imaging of human hair with a high spatial resolution without the use of a synchrotron, APPLIED SPECTROSCOPY, Vol: 59, Pages: 149-155, ISSN: 0003-7028

Journal article

Burnett DJ, Thielmann F, Williams DR, Pearse Det al., 2004, Measurement of moisture and volatile flavor diffusion phenomena through polymer packaging membranes using a novel dynamic vapor sorption technique., 228th National Meeting of the American-Chemical-Society, Publisher: AMER CHEMICAL SOC, Pages: U79-U79, ISSN: 0065-7727

Conference paper

Williams DR, 2002, First International Conference on Inverse Gas Chromatography - London, UK, 17-19 September 2001 - Foreword, JOURNAL OF CHROMATOGRAPHY A, Vol: 969, Pages: 1-2, ISSN: 0021-9673

Journal article

Zafeiropoulos NE, Baillie CA, Hodgkinson JM, 2002, Engineering and characterisation of the interface in flax fibre/polypropylene composite materials. Part II. The effect of surface treatments on the interface, Composites Part A - Applied Science and Manufacturing, Vol: 33, Pages: 1185-1190, ISSN: 1359-835X

Journal article

Zafeiropoulos NE, Williams DR, Baillie CA, Matthews FLet al., 2002, Engineering and characterisation of the interface in flax fibre/polypropylene composite materials. Part I. Development and investigation of surface treatments, COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, Vol: 33, Pages: 1083-1093, ISSN: 1359-835X

Journal article

Fairbrass SA, Williams DR, 2001, Laser surface profilometry: A novel technique for the examination of polymer surfaces, ACS Symposium Series, Vol: 779, Pages: 202-211, ISSN: 0097-6156

Laser Surface Profilometry is a non-destructive technique that requires little or no sample preparation and takes place in ambient laboratory conditions. Samples of poly(vinyl chloride) were artificially aged by exposing them to high levels of ultra violet light. A near infrared laser was used to produce topographical images of the changes in surface morphology, both on ageing and after simple conservation cleaning techniques. Cumulative percentage graphs of Ra data were shown to be a sensitive indication of any changes, which had taken place. The percentage of reflected laser light was also collected and maps of surface chemical changes were produced. This technique has proved to be a valuable tool for the examination of museum objects.

Journal article

Adams MJ, Briscoe BJ, Law JYC, Luckham PF, Williams DRet al., 2001, Influence of vapor condensation on the adhesion and friction of carbon-carbon nanocontacts, LANGMUIR, Vol: 17, Pages: 6953-6960, ISSN: 0743-7463

Journal article

Thielmann F, Butler DA, Williams DR, 2001, Characterization of porous materials by finite concentration inverse gas chromatography, 2nd International TRI/Princeton Workshop on Characterization of Porous Materials, Publisher: ELSEVIER SCIENCE BV, Pages: 267-272, ISSN: 0927-7757

Conference paper

Newell HE, Buckton G, Butler DA, Thielmann F, Williams DRet al., 2001, The use of inverse phase gas chromatography to measure the surface energy of crystalline, amorphous, and recently milled lactose, PHARMACEUTICAL RESEARCH, Vol: 18, Pages: 662-666, ISSN: 0724-8741

Journal article

Newell HE, Buckton G, Butler DA, Thielmann F, Williams DRet al., 2001, The use of inverse phase gas chromatography to study the change of surface energy of amorphous lactose as a function of relative humidity and the processes of collapse and crystallisation, INTERNATIONAL JOURNAL OF PHARMACEUTICS, Vol: 217, Pages: 45-56, ISSN: 0378-5173

Journal article

Thielmann F, Williams DR, 2001, Determination of thermodynamic parameters of nanoporous materials by frontal inverse gas chromatography., ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol: 221, Pages: U478-U478, ISSN: 0065-7727

Journal article

Thielmann F, Williams D, 2000, Bestimmung der Glasübergangstemperatur von Maltose in Abhängigkeit von der relativen Feuchtigkeit mittels Inverser Gaschromatographie, Deutsche Lebensmittel-Rundschau, Vol: 96, Pages: 255-256, ISSN: 0012-0413

The glass transition temperature (Tg) is an important property for the characterisation of polymeric, food, pharmaceutical and many natural products. IGC can provide a fast and accurate determination of this property as well as its dependence on relative humidity. This paper describes the characterisation of maltose with n-decane at infinite dilution.

Journal article

Thielmann F, Williams D, 2000, Determination of the glass transition temperature of maltose and its dependence on relative humidity by inverse gas chromatography, DEUTSCHE LEBENSMITTEL-RUNDSCHAU, Vol: 96, Pages: 255-+, ISSN: 0012-0413

Journal article

Thielmann F, Butler DA, Williams DR, Baumgarten Eet al., 2000, Characterisation of microporous materials by dynamic sorption methods, Studies in Surface Science and Catalysis, Vol: 129, Pages: 633-638, ISSN: 0167-2991

Finite concentration IGC is a useful tool to investigate surface and pore properties. A novel combination of finite concentration IGC and thermal desorption provides the possibility to separate micropore adsorption from surface and mesopore adsorption. This allows the calculation of BET values with physical relevance for highly microporous materials and the consideration of molecular sieve effects. © 2000 Elsevier Science B.V. All rights reserved.

Journal article

Levoguer C, Butler D, Thielmann F, Williams Det al., 2000, Characterizing the physico-chemical properties of pharmaceutical materials, Pharmaceutical Technology Europe, Vol: 12, ISSN: 0164-6826

Inverse gas chromatography (IGC) is a gas phase technique, first developed more than 40 years ago to study the surface and bulk properties of particulate and fibrous materials. In response to a demand for increased reliability and flexibility when performing IGC experiments, the first commercially available IGC instrument has recently been introduced. This article gives a brief description of the technique and provides some examples of its application in physico-chemical analysis of pharmaceuticals.

Journal article

Fairbrass SA, Williams DR, 1998, Laser surface profilometry: A novel technique for the examination of polymer surfaces, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol: 216, Pages: U201-U201, ISSN: 0065-7727

Journal article

Levoguer CL, Williams DR, 1998, Determining permeability and diffusion rates in polymer films and packaging materials., Med Device Technol, Vol: 9, Pages: 14-18, ISSN: 1048-6690

This article describes a rapid and effective means of calculating diffusion and permeability constants for a range of polymer films and packaging materials with various vapours. The sealed diffusion-cell method, in combination with a high performance DVS-1 gravimetric analysis system, provides fundamental data for thin films and rapid screening of composite films when designing advanced packaging systems or calculating potential shelf-life of packaged devices.

Journal article

Briscoe BJ, Liu KK, Williams DR, 1998, Adhesive contact deformation of a single microelastomeric sphere, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 200, Pages: 256-264, ISSN: 0021-9797

Journal article

Liu KK, Williams DR, Briscoe BJ, 1998, The large deformation of a single micro-elastomeric sphere, JOURNAL OF PHYSICS D-APPLIED PHYSICS, Vol: 31, Pages: 294-303, ISSN: 0022-3727

Journal article

Andrei DC, Briscoe BJ, Luckham PF, Williams DRet al., 1998, Deformation of gel particles, Meeting on Colloidal Dispersions of the Royal-Society-of-Chemistry Colloid and Interface Science Group of the Faraday Division, Publisher: SPRINGER, Pages: 15-24

Conference paper

Davies G, Butler D, Mills M, Williams Det al., 1997, A survey of ferruginous minewater impacts in the Welsh coalfields, JOURNAL OF THE CHARTERED INSTITUTION OF WATER AND ENVIRONMENTAL MANAGEMENT, Vol: 11, Pages: 140-146, ISSN: 0951-7359

Journal article

Liu KK, Williams DR, Briscoe BJ, 1996, Compressive deformation of a single microcapsule, PHYSICAL REVIEW E, Vol: 54, Pages: 6673-6680, ISSN: 1063-651X

Journal article

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