Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEntrapment of Polypyrrole Chains between MoS2 Layers via an in Situ Oxidative Polymerization Encapsulation ReactionLei Wang, Jon Schindler, Joyce Albritton Thomas, Carl R. Kannewurf, and Mercouri G. KanatzidisCite this: Chem. Mater. 1995, 7, 10, 1753–1755Publication Date (Pr…
The dynamics of spreading of simple liquids down straight, narrow ssV grooves open at the top were captured by real-time video imaging. Groove depths in polished copper ranged between 40 and 100 \ensuremath{\mu}m and extended approximately 2 cm with ssV angles of 30\ifmmode^\circ\else\textdegree\fi{}, 60\ifmmode^\circ…
Summary Zein, corn prolamine, was dissolved in several organic solvents to make films and their properties were examined. Ethanol with 20% water and acetone with 30% water were found to dissolve zein well and transform it into a transparent flexible film after moderate drying. Both films showed similar breaking streng…
Stoichiometry issues in lithium tantalate were studied through Czochralski growth of single crystals and vapor transport equilibration (VTE) of crystalline samples to specified Li/Ta compositions. Crystals were characterized through measurement of the ferroelectric Curie temperature Tc. The VTE experiments indicated a…
The reduction of X-ray diffraction data obtained by the Laue method to accurate integrated intensities is more complicated and much less familiar than the reduction of monochromatic data. Problems of data accuracy and completeness have hindered the wide use of the Laue technique in macromolecular crystallography. Its…
Abstract The detailed ethylene oxidation data set of Thornton [1], obtained for a well‐stirred reactor operated fuel‐lean at atmospheric pressure and for temperatures of 1003 K to 1253 K, is used as a basis for the comparison of chemical kinetic mechanisms reported in the literature and for the development of a new et…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCalculation of residue curve maps for mixtures with multiple equilibrium chemical reactionsSophie Ung and Michael F. DohertyCite this: Ind. Eng. Chem. Res. 1995, 34, 10, 3195–3202Publication Date (Print):October 1, 1995Publication History Published online1 May 2002Published…
A polymer composite cathode prepared from polyaniline and 2,5‐dimercapto‐1,3,4‐thiadiazole shows high gravimetric energy density when it is coupled with a lithium anode. However, charging and discharging currents should be 0.05 mA/cm 2 or less, otherwise the cycle life is shortened. Addition of a polypyrrole derivativ…
The structure and reactivity of the surface methoxy species on Ag{111} have been studied using a combination of reflection absorption infrared spectroscopy and temperature-programmed desorption. Methoxy can be generated by exposing a preoxidized Ag{111} surface to methanol at 180 K and adsorbs in an upright geometry p…
Abstract 1,2-Bis(2,4-dimethy-3-thienyl)perfluorocyclopentene was found to undergo a reversible photochromic reaction in a single crystalline phase with rotation of the thiophene rings. Both the open-ring colorless and the photogenerated red isomers were thermally stable even at 100 °C. Coloration/decoloration cycles c…
We studied the electronic conduction characteristics of sol-gel ferroelectric Pb(Zr 0.4 Ti 0.6 )O 3 thin-film capacitors by evaluation of time-dependent leakage current ( I-t ) and current-voltage ( I-V ) characteristics along with the dielectric properties. We found two regions in the I-V characteristics, which were…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew Ferrous Complexes Based on the 2,2'-Biimidazole Ligand: Structural, Moessbauer, and Magnetic Properties of [FeII(bimH2)2(CH3OH)2](OAc)2, [FeII(bimH2)3]CO3, [FeII(bimH)2]n, and {FeII(bim)}nMaria Angeles Martinez Lorente, Francoise Dahan, Vasili Petrouleas, Azzedine Bousse…
Multicomponent AB 5 hydrides are attractive replacements for the cadmium electrode in nickel‐cadmium batteries. The archetype compound of the AB 5 alloy class is LaNi 5 , but in a typical battery electrode mischmetal is substituted for La and Ni is substituted in part by various metals. While the effects of Ni substit…
EDPDB is a Fortran program that simplifies the analysis of protein structure and makes it easy to extract various types of geometrical and biologically relevant information for the molecule both in isolation as well as in its crystallographic context. EDPDB offers a large set of functions by which the user can evaluat…
A general model for the hydrogen adsorption and hydrogen absorption into metals has been proposed. It includes reactions of hydrogen evolution hydrogen absorption and hydrogen diffusion into metal. This problem leads to a system of differential equations which was solved using the differential algebraic equations meth…
The amino-terminal propeptide, consisting of 77 amino acid residues, is known to be required as an intramolecular chaperone to guide the folding of mature subtilisin E, a serine protease, into active mature enzyme. Many mutations within the pro-sequence have been shown to abolish the production of active subtilisin E…
Low-frequency Raman- and neutron-scattering spectra are compared for the three glass formers polybutadiene, polystyrene, and ${\mathrm{SiO}}_{2}$ at different temperatures. One finds similar neutron and Raman spectra in the frequency range where the quasielastic (relaxational) contribution dominates, but a marked quas…
Through three different studies, using BaTiO3 samples, as a powder while heating over the Curie temperature, and as a ceramic while applying an electric field, it is shown how X-ray diffraction (XRD) is able to give information about the evolution of the ferroelectric domain microstructure. Firstly, the relative inten…
To apply the surface barrier to reduce hydrogen permeation, the influence of the surface barrier on both the permeation and retention has been investigated considering physical and chemical stability of the barrier in fusion environment. Since energetic hydrogen from the plasma not only impinges directly into subsurfa…
Abstract The morphology and dynamic mechanical properties of blends of poly(ether imide) (PEI) and nylon 66 over the full composition range have been invesigated. Torque changes during mixing were also measured. Lowertorque values than those calculated by the log‐additivity rule were ontained, resulting from the slip…