Materials Literature
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Abstract (6‐Methoxy‐2‐oxo‐2 H ‐naphtho[1,2‐ b ]pyran‐4‐yl)methyl esters of valine or phenylalanine as model bifunctional molecules were synthesised to assess its applicability as a photocleavable protecting group for solution phase organic synthesis and in caging applications at longer wavelengths. The behaviour of th…
Abstract Intermetallic compounds have been investigated over several decades for their interesting structural and physical properties, including magnetism and superconductivity. Among these, metal pnictides and chalcogenides of transition metals show diversity of bonding ranging from appreciable covalency to metal–met…
Abstract Novel bis(azo) dyes were successfully prepared from the coupling of either natural cardanol or its hydrogenated derivative with a series of diazotized aromatic amines and diamines. These new dyes were fully characterized by NMR, infrared and UV–visible spectroscopy and mass spectrometry. The dyes are highly s…
Synthesis of Carbon Nanomaterials in a Swirled Floating Catalytic Chemical Vapour Deposition Reactor for Continuous and Large Scale Production
Carbon Nanotubes -Growth
Abstract The interest in the study of oligomers has been motivated mainly because of their solubility in common solvents and also their capacity to be crystallized, which allowed for chemical processing leading to important applications in the area of material sciences. In this work, we carried out an investigation of…
Carbon Nanotubes in Biomedicine and Biosensing 137 Noncovalent interactionThe noncovalent approach via electrostatic interaction, Van der Waals force, or π-π stacking is a feasible immobilization method for biomolecules.Particularly, it is promising for improving the dispersion proteins of CNTs without destructing of…
We have synthesized Tl 2 ZrTe 3 at elevated temperatures starting from the elements. Tl 2 ZrTe 3 adopts a cubic structure, space group P 2 1 3 with a unit cell parameter of a = 19.118(1) Å ( Z = 36). All Tl and Zr atoms are octahedrally (distorted) coordinated by Te atoms. One out of 11 crystallographically distinct T…
Silver and Gold Nanoparticles on Sol-Gel TiO 2 , ZrO 2 , SiO 2 Surfaces:
Abstract Hydrogenated nitrile rubber (HNBR) and synthetic nanofillers, viz. water‐swellable sodium fluorohectorite (FH) and water dispersible boehmite alumina (BA), were used to toughen and reinforce polyamide‐6 (PA‐6). FH and BA were introduced in HNBR latex that was dried prior to melt mixing with PA‐6. Binary blend…
Organic nonlinear optical crystals of L-phenylalanine fumaric acid [C9H11NO2. C4H4O4] (LPFA), belonging to the amino acid group, has been successfully grown by slow evaporation technique using water as solvent. Transparent crystals up to 7.0 × 7.5 × 1.0 mm3 were obtained. The lattice parameters of the grown crystal ha…
ZnO:Mg thin films with different amounts of Mg were deposited on a glass substrate using the spray pyrolysis technique. The structural, optical and antibacterial properties of the films were studied as a function of the dopant concentration. The ZnO:Mg films were characterized using methods such as x-ray diffractometr…
Abstract Lyocell fiber is a new kind of regenerated cellulose fiber and expected to replace the Rayon fiber to be not only used in the textile field but also used in the fields of industry and aerospace after being modified. In this work, the multi‐walled carbon nanotubes (MWNTs)/Lyocell composite fibers were prepared…
We apply first-principles calculations to investigate the existence and properties of edge states in TiO 2 nanoribbons. We show that edge states may be found either in the gap region or defining the bottom of the conduction band. In both cases, the addition of electrons to the ribbons, which is facilitated by the larg…
Abstract There is the need for novel polyelectrolytes with enhanced thermal and mechanical properties. In this report, we have reinforced a polyelectrolyte based on poly(dimethylaminoethylmethacrylate) (PDMAEM) using nanoclay montmorillonite (MMT), and have studied the thermal and viscoelastic properties. The protonat…
When the polarization direction of the laser beam Ê lies on the graphene plane, the absorption spectrum A(ω)is isotropic and includes one sharp peak and some shoulders. As for Ê along the stacking direction, A(ω) is much weaker, and shows only one broadened peak. Because of the dipole matrix element M(cv), the optical…
Abstract Achieving high molecular orientation, by increasing spinning velocity and/or postdrawing, is critical to improve the mechanical properties of isotactic polypropylene (iPP) fibers. In this study, we have demonstrated that upon annealing around melting point the molecular orientation of both amorphous and cryst…
Hydrogen is an important chemical material that is utilized in a large scale in synthetic chemical industries in modern society. On the other hand, technologies for utilizing hydrogen as clean source of energy are considered to assume an important position in order to overcome problems of lack of energy and environmen…
Abstract Bio‐based poly(trimethylene terephthalate) (PTT) and poly(ether esteramide) (PEEA) blends were prepared by melt processing with varying weight ratios (0–20 wt %) of polycarbonate (PC). The blends were characterized by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), polarized light…
Abstract A computer simulation is presented for the prediction of the detailed microstructure of acrylic‐polyurethane hybrid polymers synthesized by miniemulsion polymerization. The simulation considers the polymerization of a mixture of acrylic monomers, one of them having a hydroxyl group, in the presence of a diiso…