Materials Literature
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The mechanical properties of alkanethiol monolayers on Au(111) in KOH solution have been studied by force spectroscopy. The analysis of the vertical force versus penetration curves showed that monolayer penetration is a stepped process that combines elastic regions with sudden penetration events. The structural meanin…
Abstract Novel smart hydrogel fibers were prepared from a blend of hydrolyzed‐polyacrylonitrile (H‐PAN) and soy protein (SP). The dynamic and static elongation/contraction behaviors were studied. It was discovered that H‐PAN/SP hydrogel fibers consisted of a multiporous structure. With an increase in the content of SP…
Abstract Phosphorothionates are anti‐wear lubricant additives and potential replacements for zinc dialkyldithiophosphates. In this study, ball‐on‐disc tests have been carried out combinatorially under extreme pressure (EP) conditions (100–350 MPa at 10 N load). The tests were performed in oil containing triphenyl phos…
Interpenetrating networks of varying percentages of vinyl ester oligomer (VEO) toughened epoxy-clay hybrid nanocomposites were developed. VEO was prepared by reacting commercially available epoxy resin LY556 and acrylic acid and was used as a toughening agent for DGEBA epoxy resin. DGEBA was toughened with 5, 10 and 1…
Abstract The refractive index of ZnO/organic nanocomposite films was modified in the range from 1.44 to 1.55, while maintaining high visible transparency. The transparency of the nanocomposite films showed an abnormal behaviour as a function of the loading level of inorganic particles, because it did not decrease acco…
Abstract Plain weave carbon fabric (CF) reinforced Polyetherimide (PEI) composites, hereafter referred to as CF‐PEI composites, containing 40, 55, 65, 75, and 85 vol% of CF were developed using impregnation technique and compression moulding. An additional CF‐PEI composite containing 52 vol% of CF was also fabricated…
The gas-sensing properties of WO3−x thin films deposited via the atmospheric pressure chemical vapour deposition (APCVD) of WCl6 with ethanol, Ashraf, Sobia, Blackman, Christopher S, Naisbitt, Simon C, Parkin, Ivan P
This paper reports the influence of the deposition temperature and the wavelength of the periodicity on the effective interdiffusivity, microstructure, and magnetic properties of annealed [Fe∕Pt]n multilayer films (MLs). It was found that both the deposition temperature and periodicity of [Fe∕Pt]n MLs have a significa…
BACKGROUND: The mechanism by which Hsp40 and other molecular chaperones recognize and interact with non-native polypeptides is a fundamental question. How Hsp40 co-operates with Hsp70 to facilitate protein folding is not well understood. To investigate the mechanisms, we determined the crystal structure of the putativ…
Abstract Enhancing the structural complexity and functionality of the building blocks allows the construction of supramolecular assemblies. In this work, we demonstrate a strategy for the design and synthesis of complex macromolecular architectures. We use atom transfer radical polymerization to produce well‐defined p…
Abstract To enhance the thermal and mechanical properties of poly(propylene carbonate) (PPC), the terpolymers were synthesized from carbon dioxide, propylene oxide, and a third monomer, [(2‐naphthyloxy)methyl]oxirane (NMO) using supported zinc glutarate as catalyst. The structure of these terpolymers was confirmed by…
A microfabrication technique is reported for the fabrication of wax-bonded micromagnets in the 100μm–1mm range. This dimensional size is not typically achievable by thin-film deposition techniques or by conventional macroscale magnet processing, and is of interest for magnetic microelectromechanical systems applicatio…
A new high-saturation induction, high-temperature nanocomposite alloy for high-power inductors is discussed. This material has FeCo with an A2 or B2 structure embedded in an amorphous matrix. An alloy of composition Fe56Co24Nb4B13Si2Cu1 was cast into a 1.10in. wide, 0.001in. thick ribbon from which a toroidal core of…
The transport of holes in polymer light-emitting diodes (PLEDs) based on poly(2-methoxy, 5-(${2}^{\ensuremath{'}}$ ethyl-hexyloxy)-$p$-phenylene vinylene) (MEH-PPV) is investigated as a function of layer thickness. For thicknesses smaller than $100\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$, the current in these thin PLED…
In this paper, the development of an eight-step global chemical kinetic mechanism for methane oxidation with nitric oxide formation in lean-premixed combustion at elevated pressures is described and applied. In particular, the mechanism has been developed for use in computational fluid dynamics and chemical reactor ne…
Abstract Thermal oxides are commonly used for the surface passivation of high‐efficiency silicon solar cells from mono‐ and multicrystalline silicon and have led to the highest conversion efficiencies reported so far. In order to improve the cost‐effectiveness of the oxidation process, a wet oxidation in steam ambienc…
What's on the outside? Selective extraction and transport of [PtCl6]2− from aqueous acidic solutions in the presence of excess chloride has been demonstrated through outer-sphere coordination of the metalloanion by tripodal polyamide and polyurea receptors (see picture; Pt purple, N blue, O red, Cl green). Loading and…
A method based on the Langmuir equation for the estimation of vapour pressure and enthalpy of sublimation of subliming compounds is described. The variable temperature thermogravimetric/differential thermogravimetric (TG/DTG) curve of benzoic acid is used to arrive at the instrument parameters. Employing these paramet…
Einfache Eintopfreaktionen: Boronatester-Kondensationen können mit Imin-Kondensationen und Metall-Ligand-Wechselwirkungen kombiniert werden, um so in einem einzigen Reaktionsschritt nanometergroße Makrocyclen und Käfige aus kleinen Strukturbausteinen aufzubauen (siehe Schema).
Abstract A block copolymer was designed to functionalise the surface of polystyrene‐based polymersomes via coaggregation. An α,ω‐diacetylene‐functionalised poly(ethylene glycol) (PEG) was coupled to an azide‐terminated polystyrene via a Cu(I)‐catalysed cycloaddition to produce a PS‐b‐PEG polymer with an acetylene at i…