Materials Literature
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For an ideal solution, an analytical expression for the macromolecule concentration, electrolyte concentration, and solution osmotic pressure is obtained on the basis of the van't Hoff equation and the Donnan equilibrium. The expression was further applied to a colloid solution of about 3 nm glutathione-stabilized gol…
Two different oxygen-ligated cobalt porphyrins have been synthesized and the solid-state structures have been determined at several temperatures. The solid-state structures provide insight into the dynamics of Co-O(2) rotation and correlation with protecting group disorder. [Co(TpivPP)(1-EtIm)(O(2))] (TpivPP = picket…
Colloidal silver particles were successfully prepared by wet chemical synthesis. The pure single phase of silver was confirmed by X-ray diffraction. Transmission electron microscope categorized that the diameters of particles were 100 and 20 nm, depending on the molecular weight of the PVP stabilizer. A schematic draw…
We developed a Eu 2+ -doped red-emitting Sr-containing sialon phosphor Sr 2 Si 7 Al 3 ON 13 :Eu 2+ that could play a very important role in high color rendering of white light-emitting diodes (LEDs) for solid-state lighting. It realizes both high efficiency and small thermal quenching under excitation by blue light, w…
We report a leaky-mode resonant absorber fashioned as one-dimensional nanopatterned ultra-thin films. This simple structure exhibits optical absorbance of ∼66% in the 300-750 nm wavelength band, which is an ∼60% increase relative to a comparable planar reference structure. The transverse-magnetic (TM) polarized light…
A new series of non-symmetric chiral isoflavone-based liquid crystalline dimers, α-(2-methylbutyl-4′-(4″-phenyloxy)benzoate)-ω-(3-(4′-decyloxyphenyl)-4H-1-benzopyran-4-one-7-oxy)alkanes, with 3–12 carbon atoms in the alkyloxy spacer, have been synthesised. A pronounced odd–even effect for the phase transition temperat…
Abstract The texturization of poly(tetrafluoroethylene) (PTFE) surfaces is achieved at atmospheric pressure by using the post‐discharge of a radio‐frequency plasma torch supplied in helium and oxygen gases. The surface properties are characterized by contact angle measurement, X‐ray photoelectron spectroscopy and atom…
The effects of mix activated fluxes on the penetrations, microstructures and mechanical properties of tungsten inert gas (TIG) welded AZ31 magnesium alloy joints were studied. The results showed that an increase in the amount of TiO2 coating improved the weld penetration and depth/width ratio of the TIG welded AZ31 ma…
Fluctuations of local fields cause decoherence of quantum objects. Usually at high temperatures, thermal noises are much stronger than quantum fluctuations unless the thermal effects are suppressed by certain techniques such as spin echo. Here we report the discovery of strong quantum-fluctuation effects of nuclear sp…
For the past decade, polypropylene (PP) has become one of the most widely use polyolefin especially for intensive activities in research, product development and commercialization. The factor is strongly contributed by the high demands and usage predominantly in food packaging, automotive industries, fabrication of el…
The mononuclear complex [(EtO 2 C-C ∧ N ∧ C)Pt(dmpyz)] ( 1 ) (dmpyz = 2,5-dimethylpyrazine) has been synthesized by reaction of [(EtO 2 C-C ∧ N ∧ C)Pt(dmso)] ( A ) with dmpyz in a 1:1 molar ratio in dichloromethane. Complex 1 is the precursor for preparing the homodinuclear complex [{(EtO 2 C-C ∧ N ∧ C)Pt} 2 (μ-dmpyz)…
Various pests expose agriculture and food products to attack from storage until consumption by consumers. Insects and fungi are the most serious pests that can contaminate food products in warehouses. Despite modern food and other agricultural products storage and distribution systems, most packaged food products, wit…
The fine structure of the Dirac energy spectrum in graphene induced by electron-optical phonon coupling is investigated in the portion of the spectrum near the phonon emission threshold. The derived new dispersion equation in the immediate neighborhood below the threshold corresponds to an electron-phonon bound state.…
Abstract We demonstrate that bilayer graphene can be used as the anode of a small molecule organic light-emitting diode (OLED). In our OLEDs, bilayer graphene was used as the anode, Sm/Au as the cathode and Alq3 as the emitter. By applying Cs2CO3-doped 4,7-diphenyl-1,10-phenanthroline to partly substitute Alq3 as the…
ABSTRACT The individual analysis of polymeric scale inhibitors in co-mingled flow backs from wells in subsea and deepwater templates is a particularly challenging application for analytical techniques in the industry. The application of the analytical technique of mass spectrometry to this challenge has resulted in ro…
Abstract This paper discusses the effect of pH on the static barium sulphate inhibition efficiency (IE) of four scale inhibitors: DETPMP and HMTPMP (both penta-phosphonates), EDTMPA (a tetra-phosphonate), and PPCA (a phosphino poly carboxylate). pH is an important parameter with regard to SI functionality. The effect…
The interfacial area between the matrix and the filler is a key parameter which shapes the performance of polymer-based composites and nanocomposites, even though it is difficult to quantify. A very easy SAXS method, based on the Porod equation, is proposed for measuring the specific surface area of nanofillers embedd…
Abstract Peroxide dynamically vulcanized thermoplastic olefin (TPO) based on polypropylene (PP)/ethylene–propylene–diene (EPDM) loaded with zinc dimethacrylate (ZDMA) was prepared. The addition of ZDMA improved the complex viscosity of the resulting materials in the melt state significantly, as determined from oscilla…
Abstract Improved methods of functionalizing the surfaces of multi‐walled carbon nanotubes (MWCNTs) have been investigated. It is shown that a level of primary amines of 2.3%, higher than previously reported for any nitrogen‐containing gas plasma treatment, can be achieved using a mixture of N2 and H2, which is prefer…
We prepared a novel class of ferrocene-dithiolene hybrid molecules, FcS4dt(Me)2 and FcS4dt[Pt((t)Bu2bpy)] (where FcS4dt indicates 2-(1,3-dithia[3]ferrocenophane-2-ylidene)-1,3-dithiole-4,5-dithiolate and (t)Bu2bpy indicates 4,4'-di-tert-butyl-2,2'-bipyridine), in which the ferrocene moiety was bound to the planar conj…