Materials Literature
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Abstract Tough nanocomposites based on polyamide 12 (PA12) can be obtained by the addition of a maleated rubber to a highly dispersed PA12‐clay nanocomposite by melt processing. The nanostructure behavior was evaluated by X‐ray diffraction and transmission electron microscopy. The results showed that the organoclay wa…
Nanowires have a great potential in many industrial applications, including electronics and sensors. Palladium nanowire network-based hydrogen sensors have been found to outperform their counterparts that consist of an individual nanowire or palladium thin or thick films. However, reliability issues still need to be a…
Abstract Reactions of the new, closely related ligands 4,6‐dichloro‐ N , N ‐di(pyridine‐2‐yl)‐1,3,5‐triazine‐amine (Cldpat) and 6‐chloro‐ N ′‐phenyl‐ N , N ‐di(pyridin‐2‐yl)‐1,3,5‐triazine‐2,4‐diamine (Cladpat) with iron(II) thiocyanate produced coordination compounds with drastically distinct magnetic properties. The…
Abstract Although most ABA triblock copolymers are molecularly symmetric (i.e., the terminal blocks possess the same mass), molecularly asymmetric A1BA2 triblock copolymers are of greater fundamental interest in that they can be used to explore the transition from diblock to triblock copolymer in systematic fashion. I…
The effects of the location at the interface of an organoclay on the morphology and mechanical properties of a maleated‐polypropylene/polyamide 6 based co‐continuous blend have been studied. The organoclay is located at the interface because the level of interaction with each of the two polymers was similar. The dispe…
Responsive surfaces show potential for many applications; however, the molecular mechanisms of their responsive behavior are often dependent on the nature and properties of the substrate and this dependence is not fully understood. We present a molecular dynamics study on the mechanical response of poly(ethylene glyco…
Abstract To improve the thermal and mechanical properties of gelatin‐polyethylene glycol (PEG) composite fibers, montmorillonite (MMT) is incorporated into gelatin‐PEG composite fibers during gel‐spinning process. The effects of MMT on the structure and properties of gelatin‐PEG composite fibers are investigated. The…
Structural relaxation behavior of N-BK7 glass was characterized at temperatures 20 °C above and below T(12) for this glass, using a thermo mechanical analyzer (TMA). T(12) is a characteristic temperature corresponding to a viscosity of 10(12) Pa·s. The glass was subject to quick temperature down-jumps preceded and fol…
Density functional theory (DFT) calculations at the B3LYP/6-31G* level were performed to investigate the adsorption, electronic structure properties, and quantum molecular descriptors of thiazole adsorbed on the external surface of (6,0) zigzag single-walled boron phosphide nanotube in gas and solvent phases. Our resu…
Metal plating onto the fibers using supercritical fluid (SCF) is a manufacturing technology used to make highly conductive fiber; further research is being carried out actively on synthetic fibers such as aramid, polyester and nylon fibers. However, metal plating onto the fibers using SCF has some problems. The adhesi…
Abstract A colossal permittivity ceramic material, Ca 2 TiCrO 6 , was successfully synthesized by the conventional solid-state reaction, and was characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), x-ray photoemission spectroscopy (XPS) and x-ray diffraction (XRD). Rietveld refine…
Abstract Valence tautomerism (VT) refers to equilibria between two or more different tautomers differing in their charge distributions. This contribution shows how molecular VT occurring in metal–dioxolene complexes (metal = cobalt, manganese) functionalized with long alkyl chains can be coupled with several types of…
A hydrogen plasma doping process was combined with the traditional atomic layer deposition (ALD) technique in order to enhance the transparency and conductivity of ZnO films. The hydrogen plasma was included in situ during each ALD cycle and was found to be more effective at producing highly conductive ZnO when used b…
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In order to elucidate the effects of carbon nanotube surface modification and carbon nanotube distribution on mechanical properties of the buckypaper composites, two oxidation processes were developed to prepare functionalized buckypapers. The tube geometries, the entanglement, and stacking state of the carbon nanotub…
The paper presents an experimental validation of a novel methodology for the systematic design of the set point operating curves for supersaturation-controlled, seeded crystallization processes, which produces a desired target crystal size distribution (CSD). The direct design approach is based on the idea of operatin…
A liquid crystal (LC) microlens with a new type of electrode pattern is designed. The both bottom and top ITO electrodes of LC microlens are placed face to face, and are separated by glass spacer with the thickness in micron scale, and then LC materials are injected into the cell constructed by them. Because of the tw…
Dynamical properties of the lanthanum manganite lattice are examined by inelastic neutron scattering experiments and density functional theory calculations. Densities of vibrational states are measured close to the Jahn-Teller transition temperature of 750 K. Substantial changes observed in the phonon spectra above th…
Abstract A star polymer composed of three poly(ethylene glycol) (PEG) arms and one poly( N,N ‐dimethyl acrylamide) (PDMA) arm (PEG 3 –PDMA) was synthesized by amidation and atom‐transfer radical polymerization. The structure of PEG 3 –PDMA was confirmed by 1 H‐NMR and gel permeation chromatography results. The surface…
We have used density functional theory based ab initio molecular dynamics (AIMD) to study NaAlH${}_{4}$, LiBH${}_{4}$, LiNH${}_{2}$, and Li${}_{2}$BNH${}_{6}$ across a range of temperatures, above and below the experimental melting temperature. We have elucidated the structure, vibrational, and diffusion characteristi…