Materials Literature
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We have prepared four tetraaryl derivatives of 3,6-dimethylene-1,2,4,5-tetraoxocyclohexane (aryl = Ph; 4-MeOPh; 4-Me(2)NPh; and 3,5-(t-Bu)(2)-4-MeOPh) with guidance from an earlier reported ab initio analysis (Misiolek, A. W.; Jackson, J. E. J. Am. Chem. Soc. 2001, 123, 4774-4780). These electron acceptors may be chem…
The quantitative structure–property relationship approach was performed to study the nematic transition temperatures (T N) in thermotropic liquid crystals. The multi-linear regression analysis (MLRA) and artificial neural networks (ANNs) were employed to develop linear and nonlinear models, respectively. The proposed…
The peculiar electronic and structural properties of elemental boron are studied with first principles calculations including both density functional theory and wave-function based approaches. Interaction between boron and atomic hydrogen and lithium, is considered. In particular trapping a hetero-atom, such as hydrog…
Water-based nanocomposite was synthesized using in-situ polymerization of Methyl Methacrylate. Nano-CaCO3 was added during polymerization along with aqueous solution of surfactant. Quantity of nano-CaCO3 was varied as 0, 2 and 4% of monomer quantity. XRD gram shows the presence of nano-CaCO3, which causes the crystall…
Polypyrrole hexagonal microplates (PHMs) (50-100 microm long, 10-20 microm wide, and 0.8-1.2 microm thick) with a quasicrystalline structure and high electrical conductivity (up to 400 S/cm) are simply fabricated using single crystals of 4-sulfobenzoic acid monopotassium salt (KSBA) in aqueous medium. Moreover, the fa…
Abstract BACKGROUND: Wholly aromatic polyamides (aramids) are high‐performance polymeric materials with outstanding heat resistance and excellent chemical stabilities due to chain stiffness and intermolecular hydrogen bonding of amide groups. Synthesis of structurally well‐designed monomers is an effective strategy to…
A pressure-sensitive, nonreacting and nonfouling adhesive which can perform well both in air and underwater is very desirable because of its potential applications in various settings such as biomedical, marine, and automobile. Taking a clue from nature that many natural adhesive pads have complex structures underneat…
Abstract The miscibility of poly(vinyl chloride) (PVC) and poly(ethylene oxide) (PEO) blends was investigated by using differential scanning calorimetry (DSC), refractive index measurements and x-ray diffraction (XRD) analysis. The negative Flory-Huggins interaction parameter, χ 12 from the melting point depression of…
Continuous chaotic and shear mixing-induced morphology development of 60/40 w/w polypropylene/polyamide 6 (PP/PA6) blend and its nanocomposite with 5 wt% clay was investigated. PP and PP nanocomposite were mixed with PA6 in a single-screw extruder, respectively. Two screw geometries were used to induce chaotic and she…
A multiaxis three-dimensional (3D) flat woven preform and a weaving method have been developed. The structure has five yarn sets, which are bias(+) and bias(—), warp, filling and Z-yarns. The weaving method has been introduced to form the structure. An experimental prototype was constructed to trial the method. In thi…
The structural transformations between cesium silver-copper cyanides under modest conditions, both in solution and in the solid state, are described. Three new cesium silver(I) copper(I) cyanides with three-dimensional (3-D) framework structures were prepared as single crystals from a one-pot reaction initially heated…
In the present investigation Polypropylene–Maleic anhydride grafted polypropylene–organically modified MMT (PP-MAPP-OMMT) nanocomposites were prepared by melt mixing in a twin screw extruder followed by injection molding. The effect of clay chemistry and compatibilizer on the properties of the nanocomposites has been…
This work focuses on the mathematical and computational modelling of dislocation correlation in the context of dislocation dynamics modelling of mesoscale plasticity. A hierarchical system of kinetic equations describing the evolution of dislocation densities of various orders is presented to illustrate the role of co…
The evolution of fibre textured structures is simulated in two dimensions using a generalised phase field model assuming two forms for the misorientation dependence of the grain boundary energy. In each case, a steady-state regime is reached after a finite amount of grain growth, where the number and length weighted m…
Whispering gallery modes in ZnO nanorods with equilateral triangular cross sections were studied for the first time, to our knowledge. Photoluminescence following excitation with 325 nm radiation was observed at discrete wavelengths and thereby indicated the excitation of whispering gallery modes of triangular ZnO nan…
Semiconductor quantum dots (QDs) are bright fluorescent nanoparticles that have been successfully used for the detection of biomarker expression in cells. The objective of the present study is to use this technology in a multiplexing manner to determine at a single cell level the expression of a cell-specific bio-mark…
Abstract Rheological and mechanical properties of extruded wood plastic composites have been investigated for the purpose of providing a better understanding of processing conditions in profile extrusion for this novel class of thermoplastics composites. The basic formulations prepared for the study were comprised of…
We use density functional theory to examine some of the important aspects of methanol oxidation to formaldehyde catalyzed by isolated MO 3 (M = V, Mo, and Cr) clusters supported on rutile, TiO 2 (110). Thermodynamic analysis led us to conclude that in the presence of oxygen, the M (M = V, Mo, and Cr) atom takes three…
While magnetic nanowires generally have a preferential magnetization direction along the wire axis to minimize magnetostatic energy, it is shown here for epitaxial magnetic oxide nanowires that substrate-induced strain can be used to tailor the magnetic easy axis in any direction. ${\text{La}}_{0.67}{\text{Sr}}_{0.33}…
A protein complex guides the process of nacre formation in mollusk shells.