Materials Literature
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The use of pineapple leaf fibres as reinforcement in plastics had increased rapidly in past few years. Thus this project was conducted to determine and compare the flexural strength of pure epoxy and pineapple leaf fibres reinforced epoxy. The natural fibres were mixed with epoxy and hardener by weight percentage fibr…
Multiple and configurable fluorescence logic gates were fabricated via self-assembly of layered double hydroxides and various chromophores. These logic gates were operated by observation of different emissions with the same excitation wavelength, which achieve YES, NOT, AND, INH and INHIBIT logic operations, respectiv…
Blends of recycled poly(ethylene terephthalate) (R‐PET) and (styrene‐ethylene‐ethylene‐propylene‐styrene) block copolymer (SEEPS) compatibilized with (maleic anhydride)‐ grafted ‐styrene‐ethylene‐butylene‐styrene (SEBS‐ g ‐MAH) were prepared by melt blending. The compatibilizing effects of SEBS‐ g ‐MAH were investigat…
We present the synthesis of glucose-functionalized polystyrene particles through emulsion polymerisation using glucose acrylate as reactive surfactant. Additionally, we present the selective deposition of silver on the surface of these particles yielding well-defined polystyrene–silver composites.
ABSTRACT The immobilization of reversible addition–fragmentation chain transfer (RAFT) agents on silica for surface‐initiated RAFT polymerizations (SI‐RAFT) via the Z‐group approach was studied systematically in dependence of the functionality of the RAFT‐agent anchor group. Monoalkoxy‐, dialkoxy‐, and trialkoxy silyl…
Calculated binding energies of favorable adsorption configurations emphasize the importance of surface charge/energetics, structural match and water layers in mineral–organic interactions.
A survey of the ionic species deposited on surfaces over periods up to 20 years was performed in facilities constructed to store stainless steel containers for radioactive waste or facilities broadly representative of them. In the latter case, together with measurements able to yield direct information of aerosol depo…
The energetically favorable spatial configuration of M(3+) ions and oxide-ion vacancies near a symmetrical grain boundary (GB) in cubic zirconia is determined for various trivalent species M(3+) (M = Al, Sc, Y, Gd, La), and the driving force for grain boundary segregation (GBS) quantitatively examined using atomistic…
The susceptibility of stainless steel 316L (UNS S31603) to atmospheric induced stress corrosion cracking in conditions representative of the exposure to marine aerosols has been studied through laboratory tests on U-bend specimens. This study was performed to evaluate the durability of containers for the storage and d…
Abstract The formate‐based rechargeable hydrogen battery (RHB) promises high reversible capacity to meet the need for safe, reliable, and sustainable H 2 storage used in fuel cell applications. Described herein is an additive‐free RHB which is based on repetitive cycles operated between aqueous formate dehydrogenation…
Angle and polarization dependent UV–visible reflection and transmission spectra were measured for monolayers of weakly interacting silver nanocubes (of 40 and 80 nm edge lengths) supported by thin films of titanium oxide on glass utilizing both front and rear geometries with respect to the incident radiation. The supp…
A mesoporous ZnCo <sub>2</sub> O <sub>4</sub> nanosheet on a reduced graphene oxide/nickel foam network was employed as a supercapacitor electrode. It shows ultrahigh specific capacitance of 2009 F g <sup>−1</sup> at 10 mV s <sup>−1</sup> in neutral 0.1 M Na <sub>2</sub> SO <sub>4</sub> electrolyte.
A hybrid directed self-assembly approach is developed to fabricate unprecedented servo-integrated bit-patterned media templates, by combining sphere-forming block copolymers with 5 teradot/in.(2) resolution capability, nanoimprint and optical lithography with overlay control. Nanoimprint generates prepatterns with dif…
Cholesteric liquid crystals doped with QDs present a special interest because the photonic bandgap structure of cholesteric media when combined with emission properties of QDs provides the opportunity to realize a variety of specifi c photooptical properties. Cholesteric mesophase has a 1D photonic bandgap structure,…
ABSTRACT This work studied the biodegradation of polyethylene/poly(hydroxybutyrate‐ co ‐hydroxyvalerate) (PE/PHBV) and polypropylene/PHBV (PP/PHBV) films, by respirometry in soil, using biometric flasks. Additionally, the characteristics of the soil were measured by pH, moisture, organic matter content, and quantifica…
Noble metallic nanostructures have great potential in optical sensing application in visible and near-infrared frequencies. Their plasmonic properties can be manipulated by in situ controlling their electron densities for isolated nanostructures. However, the effect of charging remains underexplored for coupled system…
Mn-doped BiFeO3 films with Mn contents of 5 and 10 mol. % were prepared via a chemical route. A carefully controlled amount of Bi deficiency was introduced to further tune the lattice structure and the functionality of multiferroic BiFeO3. The crystal structure of Bi1−δFe1−xMnxO3 films was investigated by X-ray diffra…
The fluorescence of the dendrimer-entrapped Au <sub>8</sub> -cluster is quenched by the paramagnetic nitroxide radical and then restored by AA, which can be applied for intracellular imaging of AA in living cells.
ABSTRACT Condensed tannins derived from Pinus radiata bark have been esterified and added to biodegradable plastics as extrusion compounded functional plastic additives. The presence of longer alkyl chain hexanoate esters promoted tannin miscibility in the commercial polyesters Bionolle™ and Biopol™ whereas short chai…
Colloidal quantum dot films have seen rapid progress as active materials in photodetection, light emission, and photovoltaics. Their processing from the solution phase makes them an attractive option for these applications due to the expected cost reductions associated with liquid-phase material deposition. Colloidall…