Materials Literature
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High reflective coatings for 193nm wavelength and 45° incidence were developed which combines the advantages of all-oxide and all-fluorides layer stacks. Using plasma-assisted evaporation very smooth and dense Al<sub>2</sub>O<sub>3</sub>/ SiO<sub>2</sub> multilayers showing small light scatter were deposited onto…
Polysaccharide-covered polymeric nanoparticles have potential applications in controlled drug delivery. Their properties can be adjusted by their surface coverage as well as by the chemical structure of the polymeric core. Engineering such nanoparticles with controlled properties can be achieved by designing the elabo…
The solubilities of menadione sodium bisulfite in water + (methanol, ethanol, 1-propanol, 2-propanol, 1,2-propanediol, and glycerin, respectively) have been determined experimentally from (297.67 to 337.76) K by a dynamic method. The experimental data were correlated with the modified Apelblat equation.
Abstract In this article we report on the effect of the deposition pressure and the post deposition annealing conditions on the structural and magnetic properties of SmCo thin films deposited on Si(100) wafers employing Ta buffer and capping layers. The films were deposited by DC magnetron sputtering and annealed in v…
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Calix[4]hydroquinone has recently attracted considerable interest since it forms stable tubular aggregates mediated solely by hydrogen bonding and pi-pi-stacking interactions. These aggregates trap specifically various small organic molecules and, in particular, catalyze the proton exchange of water with acetone. Usin…
Abstract Acrylamide and 2‐(methacryloyloxy)ethyltrimethylammonium chloride (AM/MADQUAT) copolymers were synthesized by solution and inverse microemulsion polymerization using (NH 4 ) 2 S 2 O 8 /NaHSO 3 as redox initiator at the same feed mole ratio, and their microstructure, such as sequence distribution and compositi…
The terpolymer resin 2, 4‐HABF has been synthesized by the condensation of 2, 4‐dihydroxyacetophenone (2, 4‐HA) and biuret (B) with formaldehyde (F) in 1:1:2 molar ratios in presence of 2 M hydrochloric acid as catalyst. UV‐Visible, IR and proton NMR spectral studies have been carried out to elucidate the structure of…
The geometric and electronic properties of various B doping defects in rutile TiO 2 (1 1 0) surface are investigated in detail using first-principles density functional theory. Our results indicate that the implanted B impurity prefers forming strongly covalent bonds with O atoms in the lattice, which will result in s…
Abstract The material ductility and toughening mechanisms under high strain rate are characterized in the polypropylene (PP) blended with two different styrene–ethylene–butadiene–styrene triblock copolymer (SEBS) by the tensile tests at the nominal strain rates from 0.3 to 100 s −1 , fracture surface observations, int…
5-Uridine derivative carrying a TEMPO radical (UST) was prepared and its single strand (ssUST) and a double strand (dsUST) with its complementary strand were obtained. Similarly, single strands carrying two and five radicals (ssUST2 and ssUST5, respectively) and the corresponding double strands (dsUST2 and dsUST5) wer…
Effects of a Kekule distortion on exciton instability in single-layer graphene are discussed. In the framework of quantum electrodynamics the mass of the electron generated dynamically is worked out using a Schwinger-Dyson equation. For homogeneous lattice distortion it is shown that the generated mass is independent…
Abstract The ring‐opening polymerization of ε‐caprolactone initiated by Ti[O(CH 2 ) 4 OCHCH 2 ] 4 was investigated by differential scanning calorimetry (DSC). Both isothermal and dynamic experiments have been applied to obtain the kinetic parameters. The apparent polymerization rate constant for different experiments…
For Notch Filters, Rugate designs with a small index contrast and apodisation are well known in the literature. The required deposition of gradient index layers or so called flip flop structures is very complicated and difficult to manufacture. Higher order H/L stacks of coating materials with high index contrast resu…
The interplay of the electron transfer integral and lattice elastic energy in ${A}_{1\ensuremath{-}x}{A}_{x}^{\ensuremath{'}}{\text{CoO}}_{3}$ is investigated by neutron diffraction and the pair density function analysis. By effectively widening the bandwidth with Ca, Sr, and Ba substitutions at the $A$ site, evidence…
In this work lipase was found to be an effective catalyst for the polycondensation of a diester with a diamine to form a polyamide. The reaction is relatively mild and can be achieved at a high yield at relatively low temperatures. The resulting polyamide is amenable to derivatization reactions, thereby generating str…
Dynamic self-consistent field theory and Navier-Stokes equation are coupled to study hydrodynamic effects on the disorder-to-order transition of diblock copolymer melts. Simulations are performed for different values of the viscosity and the results are compared with those without the hydrodynamic effects. The lower t…
Abstract Flammability of polypropylene/ethylene–propylene‐diene copolymer (PP/EPDM) filled with melamine phosphate (MP) and pentaerythritol phosphate (PEPA) was studied by limiting oxygen index (LOI), UL 94, and cone calorimetry. The thermal degradation of the composites was investigated using thermogravimetric analys…
Nephrogenic Systemic Fibrosis and Gadolinium: A Perfect StormPatrick M. Colletti1Audio Available | Share
The transport of an infinitely thin, hard rod in a random, dense array of point obstacles is investigated by molecular dynamics simulations. Our model mimics the sterically hindered dynamics in dense needle liquids. Transport becomes increasingly fast at higher densities, and we observe a power-law divergence of the d…