Materials Literature
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Abstract This article covers the state‐of‐the‐art light stabilizer for rotational molding and the influence of synergistic effects between light and thermal stabilizers, which improve physical and mechanical properties. Different formulations of polyethylene (PE) with light stabilizer, thermal stabilizer, and acid sca…
We conduct a numerical study of the dynamical behavior of a system of three-dimensional "crosses," particles that consist of three mutually perpendicular line segments of length sigma rigidly joined at their midpoints. In an earlier study [W. van Ketel, Phys. Rev. Lett. 94, 135703 (2005)] we showed that this model has…
Abstract The aim of this study is to highlight the effect of the morphology of polylactic acid (PLA) thin films on the glass transition in this confined geometry. For that purpose, poly( L ‐lactic acid) and poly( D ‐lactic acid) polymer films were prepared on different surfaces such as mica and silicon surfaces by usi…
CeNbO 4 possesses oxygen hyper-stoichiometry at ambient and moderate temperature. At elevated temperature CeNbO 4+δ is thermally reduced to near stoichiometric CeNbO 4 accompanied by a structural phase transition. Above the phase transition temperature reoxidation of the material occurred in a pure oxygen atmosphere,…
Abstract Linear viscoelastic, steady shear behaviors, and morphologies of starch formate/poly(ε‐caprolactone) (PCL) blends, compatibilized by oligomers and obtained by reactive extrusion, have been investigated as a function of formic acid (FA)/starch ratio, nature, and molecular weight of the oligomer. The rheologica…
Abstract The crystal structure of anosovite, (Ti 1.69 Al 0.26 Fe 0.05 ) 3+ (Ti 0.97 Zr 0.03 ) 4+ O 5 , prepared by carbothermal reduction of leucoxene under vacuum at 1450°C has been refined by Rietveld method using powder X‐ray diffraction data. It was found that it represents slightly monoclinically deformed pseudob…
The demand for analysis of trace elements in atomically localized areas by electron energy-loss spectroscopy (EELS) in transmission electron microscopy is increasing. Unfortunately, the prolonged data acquisitions required to achieve an acceptable signal-to-noise ratio (SNR) tend to deteriorate the energy resolution b…
Abstract The sol–gel method of synthesis of the hybrid nanocomposite films of ZnO/(2‐hydroxypropyl) cellulose (HPC) on silica glass is presented. The sol phases were prepared for different weight ratios of zinc acetate dihydrate to HPC in the presence of triethylamine (TEA). Raman spectrum of the mixture of ZnAc and H…
Abstract We present first‐principles calculations on the (001) surfaces of cubic PbTiO 3 with PbO and TiO 2 terminations. The cleavage energy, surface energy, surface grand potential, surface relaxation and surface electronic structure have been investigated by using the projector‐augmented wave method under generaliz…
Abstract Polymer—clay nanocomposites were synthesized from aromatic polyamide and organoclay using the solution intercalation technique. Polyamide chains were produced through the reaction of 4,4′‐oxydianiline (ODA) and isophthaloyl chloride (IPC) in N , N ′‐dimethyl acetamide, using stoichiometry yielding chains with…
P-glycoprotein (ABCB1) is an ATP-binding cassette protein that is associated with the acquisition of multi-drug resistance in cancer and the failure of chemotherapy in humans. Structural insights into this protein are described using a combination of small angle X-ray scattering data and cryo-electron crystallography…
Abstract The synthesis, crystal structure and magnetochemical characterization of a new μ‐oxido trinuclear iron cluster (oldnomenclature: μ‐oxo trinuclear iron cluster), [Fe 3 (μ 3 ‐O)(μ 2 ‐CH 3 O) 2 (μ 2 ‐CH 3 COO) 2 (phen) 2 Cl 3 ], is reported. The reaction of hydrated FeCl 3 with sodium acetate and 1,10‐phenanthro…
Abstract The electrospinning of the polycarbonate (PC) solutions was performed for the variable electrospinning parameters such as polymer concentration, solvent composition, applied voltage, flow rate, and take‐up velocity in order to evaluate changes of morphology, mechanical properties, and flammability of the alig…
Free-standing Cu nanorod arrays on Cu foil have been fabricated by a template-assisted method. Cu nanorods were potentiostatically deposited on mechanically polished Cu foil using anodized aluminum oxide templates as the deposition mask. Three electrolyte systems were compared, including two acid copper sulfate based…
The Chalker-Coddington network model (introduced originally as a model for percolation in the quantum Hall effect) is known to map onto the two-dimensional Dirac equation. Here we show how the network model can be used to solve a scattering problem in a weakly doped graphene sheet connected to heavily doped electron r…
(100)/(001)-oriented tetragonal Pb(Zr,Ti)O 3 (PZT) films, which were thicker than 2 µm, were epitaxially grown on SrRuO 3 -covered (100)Si, (100)KTaO 3 , (100)SrTiO 3 , and (100)CaF 2 substrates by metal organic chemical vapor deposition. The volume fraction of the (001)-orientation almost linearly increased as the th…
The number of chemical species of modest molecular weight that can be accessed with known synthetic methods is astronomical. An open challenge is to explore this space in a manner that will enable the discovery of molecular species and materials with optimized properties. Recently, an inverse molecular design strategy…
Abstract The water bamboo husk is one of major agricultural wastes in Taiwan. In this study, the powder obtained from the water bamboo husk was added to poly(lactic acid) (PLA) to form novel reinforced biodegradable composites. Morphologies, mechanical properties, and heat resistance of these water bamboo powder reinf…
Abstract A new type of polymeric curing agent (PCA) was synthesized to improve processing property, increase mechanical properties, and decrease volume shrinkage of silicone rubber. The PCA was prepared by co‐hydrolysis condensation of dimethyldiethoxysilane (DDS) and polyethoxysiloxane, then modified by hexamethylcyc…
Abstract A diamagnetic ferrous complex ( 1 ) (MRI silent) is presented that consists of a macrocyclic hexadentate ligand ( 7 ) bearing an auto‐immolable arm, as seen in organic prodrug design. This arm constitutes a phenylogous N/O acetal “locked” by glycosylation. Enzymatic glycolysis is hypothesized to lead to a phe…