Publications
295 results found
Braithwaite GJC, Luckham PF, Howe AM, 1999, Study of a solvated adsorbed gelatin layer using a modified force microscope, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 213, Pages: 525-545, ISSN: 0021-9797
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- Citations: 22
Briscoe B, Luckham P, Zhu S, 1999, On the effects of water solvency towards non-ionic polymers, PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 455, Pages: 737-756, ISSN: 1364-5021
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- Citations: 21
Kostarelos K, Tadros TF, Luckham PF, 1999, Physical conjugation of (tri-) block copolymers to liposomes toward the construction of sterically stabilized vesicle systems, LANGMUIR, Vol: 15, Pages: 369-376, ISSN: 0743-7463
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- Citations: 112
Kostarelos K, Edwards K, Almgren M, et al., 1999, Engineering novel vesicles towards gene transfer applications: The fusogenic sterically stabilized liposomes, Pages: 1128-1129, ISSN: 1022-0178
Rossi S, Luckham PF, Zhu S, et al., 1999, High-pressure/high-temperature rheology of Na<sup>+</sup>-montmorillonite clay suspensions, Pages: 243-257
The rheological behavior of Na+-montmorillonite suspensions in the presence and absence of different electrolytes (NaCl, KCl, LiCl) and polyethylene oxide-type polymer was investigated under high pressure and high temperature conditions. Shear stress-shear rate flow curves were obtained for 5% (w/w) Na+-montmorillonite suspensions for temperatures up to 120 °C and pressures up to 1000 Bar. The data was fitted to both the Bingham and the Herschel-Bulkley models, from which the corresponding rheological properties were derived. Results indicated that the addition of electrolytes and a rise in temperature leads to an increase in the yield stress, due to the flocculation of the clay suspension and thermally-induced swelling.
Greenwood R, Luckham PF, Gregory T, 1998, Minimising the viscosity of concentrated dispersions by using bimodal particle size distributions, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, Vol: 144, Pages: 139-147, ISSN: 0927-7757
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- Citations: 50
Chowdhury PB, Luckham PF, 1998, Probing recognition process between an antibody and an antigen using atomic force microscopy, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, Vol: 143, Pages: 53-57, ISSN: 0927-7757
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- Citations: 41
Briscoe B, Luckham P, Zhu S, 1998, Rheological properties of poly(ethylene oxide) aqueous solutions, JOURNAL OF APPLIED POLYMER SCIENCE, Vol: 70, Pages: 419-429, ISSN: 0021-8995
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- Citations: 29
Briscoe B, Luckham P, Zhu S, 1998, Rheological properties of poly(ethylene oxide) aqueous solutions, Journal of Applied Polymer Science, Vol: 70, Pages: 419-429, ISSN: 0021-8995
This article describes the rheological properties of certain poly(ethylene oxide)s dissolved in water-based solvents. The experimental results show that the rheological properties in aqueous solutions are significantly affected by the solvent properties, which have been changed by the use of ethanol-water mixtures and electrolyte solutions and by the variation of the ambient pressure and temperature. The variation of the temperature and pressure is seen to change the polymer chain configuration and also the interactions of polymer segments with the solvent molecules. This gives rise to distinctive and apparently unusual rheological properties for these systems with the variation of the ambient temperature and pressure. The study generally illustrates that the rheology of these systems are, to a large degree, influenced by the hydrogen bonding in the solvent and between the solvent as well as the polymer. At a first-order level, the increase of the pressure and the temperature and also the addition of electrolytes, and the inclusion of an aqueous diluent, produce comparable effects. In essence, these changes seem to disrupt the hydrogen bonding structure in the solutions and, hence, the solvent quality in a comparable fashion. © 1998 John Wiley & Sons, Inc.
Kostarelos K, Luckham PF, Tadros TF, 1998, Steric stabilization of phospholipid vesicles by block copolymers - Vesicle flocculation and osmotic swelling caused by monovalent and divalent cations, JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, Vol: 94, Pages: 2159-2168, ISSN: 0956-5000
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- Citations: 34
Kostarelos K, Kipps M, Tadros TF, et al., 1998, Molecular structure and conformation in phospholipid vesicles sterically stabilized by (tri)-block copolymers investigated by multi-nuclear magnetic resonance techniques, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, Vol: 136, Pages: 1-9, ISSN: 0927-7757
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- Citations: 25
Luckham PF, Braithwaite GJC, Nowakowski R, 1998, The use of atomic force microscopy to probe the rheological properties of surfaces and films, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol: 215, Pages: U432-U432, ISSN: 0065-7727
Briscoe BJ, Khan AU, Luckham PF, 1998, Stabilising zirconia aqueous suspensions using commercial polyvalent electrolyte solutions, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 18, Pages: 2169-2173, ISSN: 0955-2219
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- Citations: 37
Kiratzis N, Luckham PF, 1998, Rheological behaviour of stabilised aqueous alumina dispersions in presence of hydroxyethyl cellulose, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 18, Pages: 783-790, ISSN: 0955-2219
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- Citations: 12
Braithwaite G, Luckham P, Meurk A, et al., 1998, Probing colloidal interactions using a modified atomic force microscope, Meeting on Colloidal Dispersions of the Royal-Society-of-Chemistry Colloid and Interface Science Group of the Faraday Division, Publisher: SPRINGER, Pages: 101-112
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- Citations: 1
Andrei DC, Briscoe BJ, Luckham PF, et 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
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- Citations: 3
Briscoe BJ, Khan AU, Luckham PF, 1998, Optimising the dispersion on an alumina suspension using commercial polyvalent electrolyte dispersants, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 18, Pages: 2141-2147, ISSN: 0955-2219
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- Citations: 95
Luckham PF, Smith K, 1998, Direct measurement of recognition forces between proteins and membrane receptors, FARADAY DISCUSSIONS, Vol: 111, Pages: 307-320, ISSN: 1359-6640
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- Citations: 23
Luckham PF, Manimaaran S, 1997, Investigating adsorbed polymer layer behaviour using dynamic surface force apparatuses - a review, ADVANCES IN COLLOID AND INTERFACE SCIENCE, Vol: 73, Pages: 1-46, ISSN: 0001-8686
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- Citations: 9
Luckham PF, Manimaaran S, 1997, Investigating adsorbed polymer layer behaviour using dynamic surface force apparatuses - A review, Advances in Colloid and Interface Science, Vol: 73, Pages: 1-46, ISSN: 0001-8686
The equilibrium forces encountered between polymer bearing surfaces have been investigated in great detail, at a nanoscopic scale, ever since the development of the Surface Force Apparatus (SFA). However, in doing so it has also been recognised that polymer interactions have a uniquely dynamic nature that warrants further investigation. In the last decade a number of researchers have taken this task to hand by modifying the SFA such that it attains the added capacity of working at a dynamic level. This review will follow the development of the SFA in its use as a dynamic tool, and also consider theoretical advances that have been made in order to interpret the results retrieved in such studies.
Khan AU, Luckham PF, Manimaaran S, 1997, Probing the mechanism by which ceramic dispersants act, JOURNAL OF MATERIALS CHEMISTRY, Vol: 7, Pages: 1849-1853, ISSN: 0959-9428
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- Citations: 13
Luckham PF, Manimaaran S, 1997, A nanorheological study of adsorbed polymer layers, MACROMOLECULES, Vol: 30, Pages: 5025-5033, ISSN: 0024-9297
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- Citations: 10
Kostarelos K, Luckham PF, Tadros TF, 1997, Addition of (tri-)block copolymers to phospholipid vesicles: A study of the molecular morphology and structure by using hydrophobic dye molecules as bilayer probes, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 191, Pages: 341-348, ISSN: 0021-9797
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- Citations: 32
Meurk A, Luckham PF, Bergstrom L, 1997, Direct measurement of repulsive and attractive van der Waals forces between inorganic materials, LANGMUIR, Vol: 13, Pages: 3896-3899, ISSN: 0743-7463
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- Citations: 63
Greenwood R, Luckham PF, Gregory T, 1997, The effect of diameter ratio and volume ratio on the viscosity of bimodal suspensions of polymer latices, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 191, Pages: 11-21, ISSN: 0021-9797
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- Citations: 90
Faers MA, Luckham PF, 1997, Effect of the steric stabilizing layer on the phase behavior and rheology of small polystyrene latex dispersions induced by changes to the concentration of nonadsorbing hydroxyethylcellulose, LANGMUIR, Vol: 13, Pages: 2922-2931, ISSN: 0743-7463
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- Citations: 32
Braithwaite GJC, Luckham PF, 1997, Effect of molecular weight on the interactions between poly(ethylene oxide) layers adsorbed to glass surfaces, JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, Vol: 93, Pages: 1409-1415, ISSN: 0956-5000
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- Citations: 42
Briscoe BJ, Khan AU, Luckham PF, et al., 1997, Optimisation of ceramic suspensions, Key Engineering Materials, Pages: 281-284, ISSN: 1013-9826
The Theological characterisation of alumina suspensions was carried in order to develop a means to optimise the processing characteristics of these suspensions. Three different commercially available dispersants ("Tiron", Fluka Chemicals, UK; "Aluminon", Fluka Chemicals, UK; and "Darvan C", RT Vanderbilt Inc., USA) were used to stabilise the alumina suspensions. It is shown that there is an optimum dispersant concentration for obtaining the lowest viscosity for these suspensions. The optimum dispersant concentration was found as 0.125, 0.25, and 1.0 wt.% for "Tiron", "Aluminon", and "Darvan C", respectively. The addition of a binder (poly (vinyl) alcohol) to these stabilised suspensions caused an aggregation of the alumina particles by a depletion flocculation mechanism. © 1997 Trans Tech Publications.
Luckham PF, Braithwaite GJC, Howe AM, 1997, Interactions between adsorbed gelatin layers, IMAGING SCIENCE JOURNAL, Vol: 45, Pages: 223-223, ISSN: 1368-2199
Rossi S, Luckham PF, Tadros TF, 1997, Viscoelastic properties of clay-polymer suspensions, Symposium on 1997 Jubilee Research Event, Publisher: INST CHEMICAL ENGINEERS, Pages: 373-376
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