Materials Literature
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Tight-binding (TB) molecular dynamics (MD) has emerged as a powerful method for investigating the atomic-scale structure of materials --- in particular the interplay between structural and electronic properties --- bridging the gap between empirical methods which, while fast and efficient, lack transferability, and ab…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTImprovement of Starch Film Performances Using Cellulose MicrofibrilsAlain Dufresne and Michel R. VignonView Author Information Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), Université Joseph Fourier, BP 53, F-…
Hydrothermal-wave instabilities in thermocapillary convection are known to produce undesirable effects when they occur during the float-zone crystal-growth process, and perhaps in other situations. Suppression of the hydrothermal-wave instability produced in the model system of Part 1 (Riley & Neitzel 1998) is dem…
The influence of the protein on the nonplanarity of the macrocycle for nickel(II)-reconstituted cytochrome c (NiCyt-c) has been investigated with pH-dependent resonance Raman and UV-visible absorption spectroscopy and molecular mechanics calculations. The spectra reveal that NiCyt-c near neutral pH has axially coordin…
Alcaligenes latus, a producer of the intracellular bioplastic poly(β-hydroxybutyric acid), was disrupted by chemical and mechanical means. Chemical lysis employed sequential treatment with sodium dodecyl sulfate (SDS) and sodium hypochlorite. The SDS treatment alone never released more than 60% of the cellular protein…
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTElectrochemical Self-Assembly of Copper/Cuprous Oxide Layered NanostructuresJay A. Switzer, Chen-Jen Hung, Ling-Yuang Huang, Eric R. Switzer, Daniel R. Kammler, Teresa D. Golden, and Eric W. BohannanView Author Information Department of Chemistry and Graduate Center fo…
The rate of diffusion of a Cu adatom on the Cu(100) surface is calculated using thermodynamic integration within the transition state theory. The results are found to be in excellent agreement with the essentially exact values from molecular-dynamics simulations. The activation energy and related entropy are shown to…
Atomistic simulation techniques have been employed to investigate the effect of molecular adsorption of water on the low-index surfaces of calcite, aragonite, and vaterite. Calculated surface and hydration energies agree with experiment and previous calculations where available. Known experimental surface features are…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
Small angle light scattering, differential scanning calorimetry, and electron microscopy have been used to quantify the kinetics of liquid−liquid phase separation and crystallization during thermal quenching of a polyethylene copolymer in anisole solution. Measurements of the time dependence of the position of the lig…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
The morphology of naphthalene and anthracene crystals has been studied both theoretically and experimentally. A connected net analysis shows that the faces {011} and {21̄1̄} contain a pair of symmetry-related connected nets giving rise to a new phenomenon called symmetry roughening. Experimentally the {011} and {21̄1̄…
A disperse red 19-containing semicrystalline azopolymer (pDR19T) with phenylene diacrylate (PD) groups within the main chain has been studied by polarization modulation and two-dimensional correlation infrared spectroscopy. The time dependence of the orientation function of azobenzene and PD groups has been followed d…
The isothermal volume contractions obtained on physically aging a sample of poly(vinyl acetate) at three temperatures below the glass transition were measured dilatometrically. These were compared with enthalpy aging data for the same polymer sample on the basis of characteristic relaxation times by fitting both types…
A determination of the viability of an endospore detection technique using terbium dipicolinate photoluminescence in the presence of other chemical and biological materials was performed. The compounds and organisms examined, possible environmental constituents, covered three broad categories: organic compounds, inorg…
A precise structural study by wide-angle X-ray scattering (WAXS) has been carried out on two spin transition materials: [Fe(Htrz) 2 (trz)](BF 4 ) ( 1 ) and [Fe(NH 2 trz) 3 ](NO 3 ) 2 ( 2 ), with Htrz = 1,2,4-4H-triazole, trz = 1,2,4-triazolato, and NH 2 trz = 4-amino-1,2,4-triazole, both at room temperature in the low…
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTKinetic Constraints on the Development of Surface Microstructure in SBS Thin FilmsGinam Kim and Matthew LiberaView Author Information Department of Materials Science and Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030 Cite this: Macromolecules 1998, 31,…
Reaction of [Cr V (N)(salen)]·CH 3 NO 2 and [Mn V (N)(salen)] in dimethylformamide or a methanol/water mixture with an aqueous solution of NaCN and CsCl or [N(CH 3 ) 4 ]Cl at elevated temperatures affords in good yields, respectively, yellow microcrystalline compounds of Cs 2 Na[Cr V (N)(CN) 5 ] ( 1 ); [N(CH 3 ) 4 ] 2…
We consider an emulsion whose droplets contain a trapped species (insoluble in the continuous phase) and study the emulsion's stability against coarsening via Lifshitz−Slyozov dynamics (Ostwald ripening). Extending an earlier treatment by Kabalnov et al. ( Colloids Surf., 1987, 24, 19−32), we derive a general conditio…
Magnetotransport properties of the Mn(IV)-rich perovskites Ca1-xLnxMnO3 and Ca1-xThxMnO3 (0 ≤ x ≤ 0.20) have been systematically investigated. Among the different factors governing their colossal magnetoresistance (CMR), we demonstrate that the electron concentration is the predominant one by comparing the effects of…