Materials Literature
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Bistable azimuthal nematic alignment textures have been created in micrometer-scale channels for which one sidewall is smooth and straight and the other possesses a symmetric sawtooth morphology. The optical textures have been observed during dynamic switching between the two stable states in response to dual frequenc…
Abstract Biocomposites consisting of cotton fibers and a commercial starch‐based thermoplastic were subjected to accelerated soil burial test. Fourier transform infrared (FTIR) spectrometry analysis was carried out to provide chemical–structural information of the polymeric matrix and its reinforced biocomposites. The…
The high-temperature structural behaviour of talc, Mg3Si4O10(OH)2, deformed by compaction and shear was investigated for the first time by extending the temperature range to 1600°C. The deformation was induced with low mechanical load through a specifically built planetary ball milling working in a controlled thermody…
Summary Monoethylene glycol (MEG), HOCH2CH2OH, is an important raw material with numerous industry applications, which include polyester synthesis, automobile antifreeze, coolant, and aircraft anti-icer. In the oil and gas industry, MEG is commonly used as a gas-hydrate inhibitor, which can prevent the formation of ga…
Abstract Based on former exploratory research, we used seaweed (SW) fiber as a novel biofiller for the production of polypropylene (PP) biocomposites. Maleic anhydride‐grafted polypropylene (MAPP) and a CNT masterbatch (CESA) were applied as compatibilizers. Mechanical properties, crystallization behavior, dynamic mec…
Abstract The aliphatic waterborne polyurethaneureas (WPU) with different isocyanate index ( R ) were synthesized by isophorone diisocyanate (IPDI) and polyester glycol via prepolymer mixing method. The effects of the R value on the structure and the properties of the resultant polymers have been analyzed. The polymer…
We predict large and positive intramolecular magnetic exchange coupling constants (J) for coupled diradicals constructed from nitronyl nitroxide and tetrathiafulvalene monoradical moieties. These diradicals have the general formula TTF-coupler-NN, where the couplers are mostly aromatic systems. Unrestricted density fu…
Abstract A novel hyperbranched polyphosphate ester (HPPE) and a high‐performance hybrid flame‐retarding material HPPE/diglycidyl ether of bisphenol‐A (DGEBA) epoxy resin are prepared. The effect of HPPE content and molecular weight on the mechanical performance, thermal performance, and flame‐retarding property of the…
The preparation of phosphazenes that possess reversible cross-linking groups to control mechanical stability and hydrolysis has been accomplished using cysteine and methionine amino acid side groups. Small molecule models and linear polymeric phosphazenes that contain methionine ethyl ester and cysteine ethyl disulfid…
We systematically explore the stability, bonding characteristics, and electronic and magnetic properties of two-dimensional (2D) few zinc oxide layers (few-ZnOLs) with or without fluorination by using density functional theory approach. The pristine few-ZnOLs favor stable planar hexagonal structures, which stem from t…
Abstract: The objective of this research is to explore correlations between piezomagnetic signals of initially unmagnetised ferromagnetic steel samples of AISI 1018 steel with progressive changes that take place during the fatigue process. A series of strain‐controlled fatigue tests were carried out to quantitatively…
Arsenic is a carcinogen that tops the Superfund list of hazardous chemicals. Bacterial resistance to arsenic is facilitated by ArsD, which delivers As(III) to the ArsA ATPase, the catalytic subunit of the ArsAB pump. Here we report the structure of the arsenic metallochaperone ArsD at 1.4 A and a model for its binding…
Ni-catalyzed single-crystal TiO 2 nanowire growth was observed to occur well below the bulk Ni melting point when a small amount of P was present. TEM, SAED, EDXS, and EELS analyses as well as consideration of the Ni/P phase diagram point to a previously unreported mechanism of nanowire growth catalyzed by a liquid Ni…
Ferroelectric PbTiO 3 nanoparticles were synthesized to be used as inorganic components of new composite materials based on a liquid crystalline elastomer (LCE) matrix. The preparation and characterization of the composite materials, with a relatively high concentration of PbTiO 3 nanoparticles, in the form of thin fi…
A number of novel cyclo- and bicyclosilanes connected by linear silanylene chains have been prepared and characterized by X-ray crystallography and NMR spectroscopy. The UV absorption properties of all compounds were studied and found to show low-energy absorption maxima red-shifted compared to acyclic compounds with…
Rapidly solidified (RS) Mg–3Ca alloy ribbons were prepared by the melt-spinning technique at different wheel rotating speeds (15 m s(-1), 30 m s(-1) and 45 m s(-1) with the as-cast Mg–3Ca alloy ingot as a raw material. The RS45 Mg–3Ca alloy ribbon showed a much more fine grain size feature (approximately 200–500 nm) i…
Abstract In this work we follow the reaction of the strong electron donor 1,2,4,5‐tetrakis(tetramethylguanidino)benzene (ttmgb) with Cu II nitrate. Three binuclear Cu II complexes were isolated as products of this reaction. Depending on the reaction conditions, especially the molar ratio of the two reactants, the ttmg…
Nonadiabatic energy dissipation by electron subsystem of nanostructured solids unveil interesting opportunities for the solid-state energy conversion and sensor applications. We found that planar Pt/GaP and Pd/GaP Schottky structures with nanometer thickness metallization demonstrates a nonadiabatic channel for the co…
Abstract The present investigation describes syntheses, characterization and studies of the mononuclear compound [Cu II L⊂(H 2 O)] ( 1 ), the triangular, trinuclear monophenoxido‐bridged compounds [{Cu II L} 2 M II (H 2 O) 2 ](ClO 4 ) 2 · n H 2 O [ 2 (M = Cu, n = 0), 3 (M = Ni, n = 3), 4 (M = Co, n = 0), 5 (M = Fe, n…
<i>Context. <i/>Hydrogenated amorphous carbons (a-C:H or HAC) have proved to be excellent analogs of interstellar dust observed in galaxies diffuse interstellar medium (DISM) through infrared vibrational absorption bands (3.4 <i>μ<i/>m, 6.8 <i>μ<i/>m, and 7.2 <i>μ<i/>m bands). They exhibit photoluminescence (PL) after…