Materials Literature
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Series of nonsymmetric 4-ethyl- and 4-fluoroanilinebenzylidene-2′,4′-oxy-bis(4″-halogenoanilinebenzylidene-4″′oxy)alkanes trimers have been synthesized and characterized. Every member in this series possesses either Cl or Br terminal atoms. The molecular structure of these novel trimers is composed of six aromatic rin…
Abstract Comparison was made between the properties of recycled newspaper (RNP)/carbon black (CB) and recycled newspaper (RNP)/silica hybrid filled polypropylene (PP)/natural rubber (NR) composites. The properties studied were mechanical, thermal, and morphological. These composites were also subjected to natural weat…
Complexes of the (nitro)( meso-tetrakis(2- N-methylpyridyl)porphyinato)cobalt(III) cation, [LCoTMpyP(2)(NO 2)] (4+), in which L = water or ethanol have been immobilized through ionic attraction within Nafion films (Naf). These immobilized six-coordinate species, [LCoTMPyP(2)(NO 2)/Naf], have been found to catalyze the…
Surface conditions of aluminum can influence the final arrangement of nano-pores in fabrication of ordered nanoporous anodic alumina membranes (AAMs). This study is mainly focused on the different applied voltages of aluminum electropolishing by keeping all the other parameters constant. After heat treatment (stress r…
The reaction pathways for water dissociation at a model liquid−solid interface have been investigated by a combination of experimental and theoretical approaches. By scanning tunneling microscopy (STM) and high-resolution electron energy-loss spectroscopy (HREELS), we revealed that the fragments of condensed water mol…
Jenseits des Sichtbaren: Im Carbokation eines Porphyrindimers findet eine effektive Delokalisierung über 18 konjugierte Bindungen statt. Das Platzieren des carbokationischen Zentrums zwischen zwei konjugierte Porphyrineinheiten verschiebt die Absorption in den Infrarotbereich und resultiert in außergewöhnlichen nichtl…
A computational study of the relative stability of the monolacunary Keggin polyoxotungstates alpha and beta 3-[XW 11O 39] ( m- ) (X = P, m = 7; X = Si, m = 8) was performed. The influence of the nature of different grafted cations and of the central anion XO 4 ( n- ) on the relative stabilities of the lacunary isomers…
Various red algae lack sexual reproduction and propagate by spore recycling, but it is still unknown how apomixis originates. In previous crossing experiments, we obtained an unusual hybrid of Caloglossa monosticha M. Kamiya through the outcrossing between a male from Australia and a female from Indonesia. This hybrid…
In this article, we demonstrate that confocal Raman microscopy can be utilized to image the director fields of liquid crystal molecules, revealing the spatial patterns of the molecular orientational order both in lateral and axial directions. Here we report on the polarized confocal Raman imaging of the electric field…
Abstract Poly(lactic acid)/organic montmorillonite (PLA/OMMT) nanocomposites were prepared via twin‐screw extrusion. Montmorillonite (MMT) was firstly organically modified to improve the compatibility between polyester and MMT. The effects of ratio between PLA and OMMT and the addition of polycaprolactone (PCL), as a…
Abstract The aim of this work is to study the valorization of regenerated low density polyethylene (rLDPE) by blending with PVC in the presence of chlorinated polyethylene (CPE) as compatibilizer. For this purpose, four rLDPE samples coming from neat or dirty wastes were used. They were obtained after milling, washing…
MCM-41 and SBA-15 micelle-templated silicas are ideal reference materials to study the effect of surface roughness on pore size measurement by mercury intrusion, as the inner surface of the mesoporous channels is much rougher in the case of SBA-15 than MCM-41. In the case of MCM-41, the pressure of mercury intrusion i…
Particulate composites and bulk laminates of Ni–Co–Mn ferrite (NCMF) and lead zirconate titanate (PZT) were synthesized by the solid state synthesis route. The magnetoelectric (ME) particulate composites with (x)NCMF + (1 − x)PZT (x = 0, 0.5, 0.6, 0.7 and 1) have been synthesized to study the effect of the PZT mole fr…
The understanding of nanoscale interactions of nuclear materials will help to mastering the complex behavior of actinides and of fission products, and the interfacial behavior of fuel-cladding under extreme conditions. Ultrafine grained and nanostructured engineering materials are also suggested as protective armors o…
As part of a structural investigation of strontium tellurate(IV) (STO), SrTeO(3), with particular emphasis on the crystal chemistry and phase transitions, the structure of the δ-phase has been determined at 780 K using a single-crystal analysis. Both structural and non-linear optical measurements indicate that STO und…
A new iron phosphate, sodium barium diiron tris-(phosphate), NaBaFe(2)(PO(4))(3), has been synthesized by the flux method and shown to exhibit the well known langbeinite type structure. The Na, Ba and Fe atoms all lie on threefold axes, while the P and O atoms occupy general positions, one of the O atoms being disorde…
An ultrafine grained (UFG) aluminum sheet was produced using severe plastic deformation (SPD) by a process known as accumulative roll bonding (ARB). Electron Back Scattered Diffraction (EBSD) method and Transmission Electron Microscopy (TEM) were utilized for characterization of the subgrain and grain structures of th…
Abstract Calcium carbonate (CaCO 3 ) filler particles were surface treated with organic titanate (TTS), a coupling agent. The composites were prepared by blending low‐density polyethylene (LDPE) with the surface‐modified fillers at various weight ratios. Ethylene‐acrylic acid copolymer (EAA) was added to improve the a…
Temperature-dependent and magnetic-field-dependent measurements of the microwave surface impedance of superconducting ${\text{LaFeAsO}}_{0.9}{\text{F}}_{0.1}$ $({T}_{c}\ensuremath{\approx}26\text{ }\text{K})$ reveal a very large upper critical field $({B}_{c2}\ensuremath{\approx}56\text{ }\text{T})$ and a large value…
The structural disorder, heat capacity, resistivity, Hall effect, and magnetic susceptibility of polycrystalline chemical-vapor-deposited diamond irradiated with fast neutrons at temperature of $(325\ifmmode\pm\else\textpm\fi{}10)\text{ }\text{K}$ at high fluences $\ensuremath{\Phi}=(1--5)\ifmmode\times\else\texttimes…