Materials Literature
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Isotactic polypropylene (iPP)/maleic-anhydride-grafted polypropylene (PP-g-MA)/raw and acid-treated single-walled carbon nanotube (SWCNT) nanocomposites were prepared in an internal mixer. Thermal and crystallization behaviors of these nanocomposites were evaluated. Thermal properties of the iPP and its nanocomposites…
We study magnetism and electronic structures of armchair BCN-hybrid nanoribbons from density functional theory. Different from armchair graphene nanoribbons, armchair BCN-hybrid nanoribbons are found to present magnetism along the edges of the nanoribbons if B and N atoms are unpaired in the nanoribbons. Intriguing sp…
Barium hexaferrite thin films with thickness of 8 μm had been deposited on a sapphire substrate by radio-frequency magnetron sputtering. The results show that the grain size is about 2 μm in diameter. The coercivity is about 2.2 kOe and the saturation magnetization is about 4000 Gs with remanence ratio of 0.58. Based…
A compact and highly b-oriented MFI monolayerwas fabricated with a novel phase-segregation-induced self-assembly method. When MFI microcrystals were dispersed uniformly in an appropriate dispersant (sec-butanol) containing a trace amount of binding agent (linoleic acid), these microbuilding blocks were spontaneously s…
We report the effects of 70 keV proton ( H + ) irradiation on the structure of zinc oxide nanowires (ZnO NWs) for a wide range of irradiation doses at room temperature. It was found that at low dose 5 × 10 15 ions/cm 2 of protons, few defects were created in ZnO NWs and the defects' density was increased with an incre…
ADVERTISEMENT RETURN TO ISSUEPREVCommentComment on "Hydrophilicity and the Viscosity of Interfacial Water"Nathan W. Moore†*, Kristianto Tjiptowidjojo‡, and P. Randall Schunk‡§View Author Information† Radiation Effects Research, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States‡ Department of C…
In this work we have done a study of RAMAN spectroscopy on glycine sodium nitrate crystals. This study was supported with the respective X-ray diffraction and second-harmonic generation signal detection. The goal of this work is to modify the charge of glycine sodium nitrate in order to obtain three electric behaviors…
Polyaniline-containing transition metal salts were synthesized by oxidizing the complex of aniline with corresponding metal salts in solution. The effect of transition metal salts on the electrical conductivity of polyaniline (Pani) was discussed in details. The as-prepared products were characterized by FT-IR spectro…
Abstract The crystal structure of acetolone (5-(acetoacetylamino)benzimidazolone, C 11 H 11 N 3 O 3 ), was determined from X-ray powder data. Despite strong preferred orientation effects, the structure could be solved with real-space methods and refined by the Rietveld method using restraints. The resulting structure…
There has been a significant interest in many technical applications and natural phenomena concerning two-phase mixture discharges (TPMDs). Few studies have focused on the influences of different macroparticles on TPMDs. The dielectric constant is usually considered to be the only factor affecting the discharges, but…
Silver nitrate was incorporated in cellulose acetate with different substitution degrees as a dispersion medium. Silver-containing polymer solutions in 2-methoxyethanol were rheologically investigated, both before and after boiling, which permitted a better understanding of the morphological aspects of the correspondi…
We report on the preparation and characterization of multidimensional nano-objects nanoassembly in film surface coatings. 2D reduced graphene oxide (rGO) sheets are assembled with 0D block copolymer micelles (BCM)s through electrostatic layer-by-layer assembly. The BCM/rGO paired nanoassembly surface coatings were for…
We present a theory for surface polaritons on ferroelectric-antiferromagnetic materials with canted spin structure. A small uniform canted moment is allowed, resulting in a weak ferromagnetism directed in the plane parallel to the surface. Surface and bulk polariton modes for a semi-infinite film are calculated for th…
L,L-Lactide, a dimer of L-lactic acid, is the typical monomer used for the catalytic synthesis of poly(L-lactic acid) (PLLA). We studied its phase diagram and reactivity at high pressure and high temperature by means of a diamond anvil cell. FTIR and Raman spectroscopy were employed to probe the changes occurring in t…
Abstract Electron paramagnetic resonance (EPR) is used to identify the next nearest neighbour Co 2+ pairs coupled by spin–spin interaction in Co‐doped ZnO single crystals grown by the hydrothermal technique. These dimer centers are described by a spin Hamiltonian with exchange coupling terms written as interaction bet…
Abstract We report the application nondegenerate ultrafast mid‐infrared spectroscopy to investigate the acoustic phonon cooling process in epitaxial graphene. We show that the power‐dependent experimental results match theoretical predictions of the low temperature acoustic cooling process. The hot phonon effect in ac…
Dilute sulfuric acid hydrolysis was performed before the isolation of cellulose from Eulaliopsis binata. And then, the effects of dilute acid hydrolysis on composition and structure of the cellulose was studied in detail. The results indicated that hemicellulose was dissolved mostly and that the lignin-hemicellulose-c…
By application of flux growth methods in combination with redox reactions, single crystals of BaAg(2)Cu[VO(4)](2) can be synthesized. A new structure type (triclinic, P1, Z = 2, a = 5.448(2) Å, b = 5.632(3) Å, c = 14.393(6) Å, α = 94.038(9)°, β = 90.347(6)°, and γ = 118.195(5)°) has been found and will be described he…
The concentrations of nutrient heavy metals in the roots, stems and leaves of medicinal plants Calotropis procera and Citrullus colocynthis, and in the corresponding sediment samples from Al-Riyadh and Gazan, Saudi Arabia, were investigated to ascertain whether plant species and organs are characterized by differentia…
Abstract Nanocomposite fibers of polypropylene and montmorillonite‐based organoclay were produced by a melt‐spinning process, and their structures and mechanical properties were studied. The addition of nanoclay in polypropylene increased the rate of crystallization and altered the microstructures of the fibers. Incre…