Search Results - "Pethrick, Richard A"

Physical properties of poly(ether ether ketone) exposed to simulated severe oilfield service conditions by Mohammed, Musarrat H., Banks, William M., Hayward, David, Liggat, John J., Pethrick, Richard A., Thomson, Barry

“…The property changes occurring when poly(ether ether ketone) (PEEK) is subject to methane and carbon dioxide at high pressures (108 Pa) and high temperatures…”
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A dielectric study of water uptake in epoxy resin systems by Garden, Lisa, Pethrick, Richard A.

“…ABSTRACT The influence of epoxy resin formulation on the nature and extent of moisture is studied using dielectric and gravimetric analysis for samples cured…”
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Rheology of Poly(acrylic acid) in Water/Glycol/Salt Mixtures by Wang, Yuchen, Pethrick, Richard A, Hudson, Nicholas E, Schaschke, Carl J

“…Aqueous mixtures of 1,2-propylene glycol with added poly(acrylic acid), neutralized and with added salt, are used for aircraft deicing. This study reports data…”
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Properties of photocured epoxy resin materials for application in piezoelectric ultrasonic transducer matching layers by Trogé, Alexandre, O'Leary, Richard L., Hayward, Gordon, Pethrick, Richard A., Mullholland, Anthony J.

“…This paper describes the acoustic properties of a range of epoxy resins prepared by photocuring that are suitable for application in piezoelectric ultrasonic…”
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Critique of dielectric cure monitoring in epoxy resins – Does the method work for commercial formulations? by Garden, Lisa, Pethrick, Richard A.

“…Dielectric techniques can be used as an in situ monitor of resin cure. This study reports measurements on two commercial resin formulations and aims to…”
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Investigation of the degradation of cellulose acetate museum artefacts by Littlejohn, David, Pethrick, Richard A., Quye, Anita, Ballany, Jane M.

“…Cellulose acetate artefacts from various museums have been analysed by micro-FTIR spectrometry and ion chromatography in an attempt to identify whether there…”
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Environmental effects on the ageing of epoxy adhesive joints by Doyle, Gerald, Pethrick, Richard A.

“…Adhesive bonded joints are exposed to a range of different environments in aerospace applications. This paper reports dielectric and mechanical analysis of…”
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Investigation of inherent degradation in cellulose nitrate museum artefacts by Quye, Anita, Littlejohn, David, Pethrick, Richard A., Stewart, Robert A.

“…Cellulose nitrate was one of the first semi-synthetic plastics to be commercially exploited and as such many museums contain a large number of artefacts…”
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Comparison of the hydration behaviour of various aluminium oxides powders – A dielectric relaxation study by Hayward, David, Pethrick, Richard A.

“…Dielectric measurements are reported for alpha and gamma alumina powders exposed to moisture for various periods of time, temperatures and dried in air for…”
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Solvent Effects in Polyurethane Cure: A Model Study by Monaghan, Stephen, Pethrick, Richard A

“…The effect of change of solvent type on the rate of cure of a polyol with an isocyanate was measured using a range of different techniques. The initial stages…”
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Surface Topography and Composition of Deuterated Polystyrene−Poly(bromostyrene) Blends by Affrossman, Stanley, Henn, Guido, O'Neill, Scott A, Pethrick, Richard A, Stamm, Manfred

“…Surface structure, obtained from atomic force microscopy and X-ray reflectivity, and surface chemical analysis data, obtained from X-ray photoelectron and…”
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Gas permeation and positron annihilation lifetime spectroscopy of poly(ether imides) containing main chain ethylene oxide segments by Pethrick, Richard A, Santamaria‐Mendia, Fernan

“…This article reports a study of four poly(ether imide)s with varying ethylene oxide (EO) segments lengths using positron annihilation lifetimes spectroscopy,…”
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Influence of nanosilica particles on the cure and physical properties of an epoxy thermoset resin by Pethrick, Richard A, Miller, Claire, Rhoney, Ian

“…Measurements are reported on the cure and physical properties of an epoxy resin created using a functionalised nanosilica filler. The filled bisphenol A epoxy…”
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Solvent Effects on Cure in a 2K PolyurethaneMechanical and Dielectric Studies by Monaghan, Stephen, Pethrick, Richard A

“…The effect of change in solvent type on the processes involved in film formation of a 2K polyurethane are investigated using dynamic mechanical thermal…”
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High-extension properties of polyurethane elastomers-effects of variation of the ester isocyanate ratio by Delides, Costas G., Pethrick, Richard A.

“…The effects of changing the ratio of 4,4′‐diphenyl methane diisocyanate (MDI) to ester on the stress–strain extension characteristics of various polyurethane…”
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Accelerated ageing to study the degradation of cellulose nitrate museum artefacts by Quye, Anita, Littlejohn, David, Pethrick, Richard A., Stewart, Robert A.

“…Cellulose nitrate is susceptible to hydrolysis as well as loss of plasticiser when left in a humid atmosphere. A comparison of the ageing behaviour of…”
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Sub-Micrometer Patterning of Amorphous- and β-Phase in a Crosslinkable Poly(9,9-dioctylfluorene): Dual-Wavelength Lasing from a Mixed-Morphology Device by Kuehne, Alexander J. C., Kaiser, Markus, Mackintosh, Allan R., Wallikewitz, Bodo H., Hertel, Dirk, Pethrick, Richard A., Meerholz, Klaus

“…The metastable β‐phase morphology, inherent to most polyfluorene homo‐polymers, is of interest due to its superior optical and electrical characteristics…”
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Influence of change in ether structure on the low temperature dielectric relaxation of some poly(ether imide) by Eastmond, Geoffrey C., Paprotny, Jerzy, Pethrick, Richard A., Santamaria-Mendia, Fernan

“…ABSTRACT Broad band dielectric relaxation spectra are reported on a range of polymers created by varying the ether segment in a series of poly(ether imide)s…”
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Effect of surface treatments of titanium dioxide pigments on the cure of polyester/triglycidyl isocyanurate powder coatings by Affrossman, Stanley, McKee, Anthony, Pethrick, Richard A.

“…Titanium dioxide pigments will typically have an inorganic surface coating based on a blend of alumina and silica and an organic treatment. Both the organic…”
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Positron Annihilation Lifetime Spectroscopy and Large Molecule Diffusion into a Polyurethane Matrix by Ward, Shelia A, Pethrick, Richard A

“…Positron annihilation lifetime spectroscopy (PALS) measurements are reported on a three polyurethane (PU) materials created by the reaction of polymeric…”
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