Materials Literature
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Nanosized beta carbon nitride (β-C 3 N 4 ), of grain size several tens of nanometres, has been synthesized by mechanochemical reaction processing. The low-cost synthetic method developed facilitates the novel and effective synthesis of nanosized crystalline β-C 3 N 4 ( a = 6.36 Å, c = 4.648 Å) powders. The graphite po…
Abstract Nanostructure of poly(ethylene‐ co ‐vinyl acetate)/organically modified montmorillonite (MMT; EVA/organoclay) nanocomposites prepared by melt intercalation process was investigated using X‐ray diffraction (XRD) and transmission electron microscopy (TEM). Three kinds of organoclays were used to see their influ…
Abstract PAMAM dendrimers functionalized with nitronyl nitroxide radicals were characterized. Quantitative determination of substitution with radicals was performed using EPR and electrochemical methods. The study of the 1 H NMR relaxation of the surrounding water showed how the outer‐sphere contribution to the relaxi…
Inorganic nanostructures that interface with biological systems have recently attracted widespread interest in biology and medicine. Nanoparticles are thought to have potential as novel luminescent probes for both diagnostic (e.g., imaging) and therapeutic (e.g., drug delivery) purposes because of their size comparabl…
Orchestia cavimana is a terrestrial crustacean, which cyclically stores calcium in diverticula of the midgut, in the form of calcified amorphous concretions. These concretions are associated with a proteinaceous matrix, the main constituent of the soluble matrix is Orchestin, an acidic calcium-binding protein [Testeni…
Linear dynamic viscoelastic properties of functionalized block copolymer/organoclay nanocomposites were investigated. The organoclay employed (Cloisite 30B, Southern Clay Products) is natural clay modified with methyl, tallow, bis(2-hydroxyethyl), quaternary ammonium chloride (MT2EtOH). Nanocomposites were prepared by…
Surface‐modified nanoparticles have received much attention as drug carriers. Natural and synthetic polymers are used as the materials to prepare nanoparticles and the properties of these nanoparticles originate with these polymeric materials. In particular, these nanoparticles are modified for specific objectives. Th…
Designed as a basic and introductory reference, this book not only addresses stainless steels in the light of their resistance to corrosion for which they are more commonly recognised, but also explains the wide range of other useful properties attributable to the various and specific categories of these alloys. This…
A highly ordered composite Ni−Cu nanowire array has been fabricated within the pores of an anodic aluminum oxide (AAO) template by pulsed electrodeposition, and it has been characterized by transmission electron microscopy (TEM), selected-area electron diffraction (SAED), magnetic force microscopy (MFM), and supercond…
The synthesis, characterization, and development of new nanoparticle materials have both scientific and technological significance. Surface initiated polymerization (SIP) from nanoparticle surfaces involves the growth of end‐tethered polymer brushes where the length or thickness can be more than twice the radius of gy…
A versatile Monte Carlo program for quantitative particle analysis in electron probe X-ray microanalysis is presented. The program includes routines for simulating electron-solid interactions in microparticles lying on a flat surface and calculating the generated X-ray signal. Simulation of the whole X-ray spectrum as…
The combination of two design strategies for engineering large second-order nonlinear optical polarizabilities is critically analyzed and contrasted with a recent limiting theory for nonlinear molecular polarizabilities. Elongation of the conjugation path length and N -arylation in stilbazolium chromophores both are e…
The phase behavior of eight poly(styrene- b -isoprene) diblock copolymers in the neutral solvent dioctyl phthalate (DOP) has been examined over the full concentration (φ) range and from room temperature up to 250 °C. The copolymer compositions ( f ) ranged from 0.15 to 0.76, and molecular weights were chosen to make t…
Piezoelectric constant and temperature-dependent dielectric constant measurements have been performed on ⟨110⟩-oriented (1 − x )Pb (Mg 1/3 Nb 2/3 )O 3 – x PbTiO 3 crystals with different compositions under different poling fields. The width of the morphotropic phase boundary region (0.30 < x < 0.35) is determined on t…
Single-wall carbon nanotubes (SWNTs) and their fluorinated derivatives (F-SWNTs) were reacted with organic peroxides including benzoyl and lauroyl peroxide to produce phenyl and undecyl sidewall functionalized SWNTs, respectively, which were characterized by Raman, FTIR, and UV-Vis-NIR spectra as well as TGA/MS, TGA/F…
Abstract Sponge gourd ( Luffa cylindrica ) forms a natural mat that deviates the crack path in brittle thermoset resin matrix composites, leading to a controlled fracture mode and increasing the toughness of the composite. The use of luffa as reinforcement is, however, restricted by a very weak fiber–matrix interface.…
A review of the engineering theory and the sensing element applications of the magnetostrictive delay line (MDL) technique is presented. The state of the art of magnetic materials and effects used in sensor design is overviewed and the operation of MDLs and their basic engineering properties are discussed. The resulti…
The reaction of racemic 5,5′,6,6′- tetramethyl-3,3′-di-tert-butyl-1,1′-biphenyl-2,2′-diol (biphenolate-H2) with 4 mol equiv. of nBuLi yields [(μ3,μ3-biphenolate)2Li4(nBuLi)4] (1) in high yield. 1 further reacts with 4 mol equiv. of 2,4-dimethyl-3-pentanol in the presence of tetrahydrofuran (THF) or cyclohexene oxide (…
We report on the transient-enhanced shape transformation of nano-structured Si(001) surfaces upon in vacuo annealing at relatively low temperatures of 1175K - 1225K for a few minutes. We find dramatic surface mass transport concomitant with the development of low-energy facets on surfaces that are covered by native ox…
We present results of the magneto-crystalline anisotropy energy (MAE) calculations for chemically ordered $L1_0$ CoPt and FePt alloys taking into account the effects of strong electronic correlations and spin-orbit coupling. The local spin density + Hubbard U approximation (LSDA+U) is shown to provide a consistent pic…