A. W. Cordes、Robert C. Haddon、Richard T. Oakley 等 7 位作者1991-01-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular semiconductors from bifunctional dithia- and diselenadiazolyl radicals. Preparation and solid-state structural and electronic properties of 1,4-[(E2N2C)C6H4(CN2E2)] (E = sulfur, selenium)A. Wallace Cordes, Robert C. Haddon, Richard T. Oakley, Lynn F. Schneemeyer, J…
Organic Light-Emitting Diodes ResearchMagnetism in coordination complexesOrganic and Molecular Conductors Research
K. E. Davis、William B. Russel、Werner J. Glantschnig1991-01-01Journal of the Chemical Society Faraday Transactions
Suspensions of colloidal particles execute Brownian motion and thus exhibit thermodynamic properties analogous to those of molecular systems. Hard-sphere colloidal silica suspensions undergo a disorder–order transition, i.e. freezing or crystallization, at high volume fractions. In suspensions of small particles the s…
Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesSurfactants and Colloidal Systems
David A. Mortimer1991-01-01Polymer International
Abstract The ability to control charge nature, charge density and molecular weight enables the polymer chemist to design polyelectrolytes to provide a wide variety of functions, essential in many industrial processes. The flexibility of polymer design is summarised.
Advanced Polymer Synthesis and CharacterizationPolymer Nanocomposites and PropertiesDendrimers and Hyperbranched Polymers
Douglas Philp、Alexandra M. Z. Slawin、Neil Spencer 等 5 位作者1991-01-01Journal of the Chemical Society Chemical Communications
The powerful π-electron donor, tetrathiafulvalene, forms a strong green-coloured 1 : 1 complex with the π-electron accepting tetracationic cyclophane, cyclobis(Paraquat-p-phenylene), in both the solid and solution states as demonstrated by X-ray crystallography and spectroscopy (NMR and UV–VIS), respectively.
Perovskite Materials and ApplicationsMagnetism in coordination complexesOrganic and Molecular Conductors Research
J.C. Fothergill1991-01-01IEEE Transactions on Electrical Insulation
A breakdown mechanism is proposed in which a filamentary-shaped crack propagates through a dielectric, releasing both electrostatic energy and electromechanical strain energy stored in the material due to the applied electric field. The mechanism predicts a breakdown strength which is proportional to the fourth root o…
High voltage insulation and dielectric phenomenaElectrostatic Discharge in ElectronicsElectrohydrodynamics and Fluid Dynamics
José Luis Arias、María Soledad Fernández、James E. Dennis 等 4 位作者1991-01-01Connective Tissue Research
An immunohistochemical analysis of the eggshell membranes shows the occurrence of type X collagen while type I collagen was not detected by using an appropriate monoclonal antibody with untreated shell membranes. A positive immuno-reaction for type I collagen was obtained after digestion of the shell membranes with pe…
Meat and Animal Product QualitySilk-based biomaterials and applicationsCollagen: Extraction and Characterization
R. J. Cava、B. Batlogg、T. T. M. Palstra 等 7 位作者1991-01-01Physical review. B, Condensed matter
The magnetic properties and resistivities of the ${\mathrm{La}}_{2\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Sr}}_{\mathit{x}}$${\mathrm{NiO}}_{4}$ solid solution have been investigated with particular emphasis on conductive materials near ${\mathrm{LaSrNiO}}_{4}$. Near that composition, weakly temperature-dependent…
Physics of Superconductivity and MagnetismMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics
Todd K. Jones、Julie J. Mohan、Lyndon C. Xavier 等 10 位作者1991-01-01The Journal of Organic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn asymmetric synthesis of MK-0417. Observations on oxazaborolidine-catalyzed reductionsTodd K. Jones, Julie J. Mohan, Lyndon C. Xavier, Thomas J. Blacklock, David J. Mathre, Paul Sohar, E. Tracy Turner Jones, Robert A. Reamer, F. E. Roberts, and E. J. J. GrabowskiCite this:…
Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisAsymmetric Hydrogenation and Catalysis
Kenneth J. Klabunde、Yong Xi Li、Beng Jit Tan1991-01-01Chemistry of Materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvated metal atom dispersed catalystsKenneth J. Klabunde, Yong Xi Li, and Beng Jit TanCite this: Chem. Mater. 1991, 3, 1, 30–39Publication Date (Print):January 1, 1991Publication History Published online1 May 2002Published inissue 1 January 1991https://pubs.acs.org/doi/10.…
Catalytic Processes in Materials Science
T. P. Aydt、Curtis L. Weller、R. R Testinlton1991-01-01Transactions of the ASAE
ABSTRACTPublished methods for production of homogeneous edible films from com and wheat proteins were adapted. Barrier and mechanical properties of the edible films were evaluated with procedures commonly used on polymeric films. Mechanical property data included thickness, elongation, tensile strength, tear strength,…
Nanocomposite Films for Food Packaging
Shin Toyoda、Motoji Ikeya1991-01-01GEOCHEMICAL JOURNAL
Thermal stabilities of E′, Al, and Ti centers in quartz from the Mannari granite were investigated by electron spin resonance (ESR) with isothermal and isochronal annealing experiments. Second order decay kinetics best explain the results. The closure temperatures at which the ESR clocks start were estimated to be 91°…
Glass properties and applicationsSolid-state spectroscopy and crystallographyEarthquake Detection and Analysis
Noboru Tohge、Satoshi Takahashi、Tsutomu Minami1991-01-01Journal of the American Ceramic Society
Ferroelectric films, PbZr x Ti 1− x O 3 ( x = 0 to 0.6), have been prepared from corresponding metal alkoxides partially stabilized with acetylacetone through the sol‐gel process. The films dip‐coated in an ambient atmosphere were heat‐treated at 400°C for decomposition of residual organics and then at temperatures be…
Ferroelectric and Piezoelectric MaterialsPolymer Nanocomposites and PropertiesSynthesis and properties of polymers
Andrew J. Lovinger、D. D. Davis、Bernard Lotz1991-01-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTemperature dependence of structure and morphology of syndiotactic polypropylene and epitaxial relationships with isotactic polypropyleneAndrew J. Lovinger, Don D. Davis, and Bernard LotzCite this: Macromolecules 1991, 24, 2, 552–560Publication Date (Print):January 1, 1991Pu…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesMaterial Properties and Processing
Alexander Eychmüller、A. Hässelbarth、Lynne Katsikas 等 4 位作者1991-01-01Berichte der Bunsengesellschaft für physikalische Chemie
Abstract The fluorescence properties of surface modified quantum‐sized CdS colloids were investigated by means of static and time‐resolved low temperature fluorescence spectroscopy. All samples investigated had high fluorescence quantum yields already at room temperature and exhibited either exclusively excitonic or a…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications
M. S. Duesbery、G. Y. Richardson1991-01-01Critical reviews in solid state and materials sciences/CRC critical reviews in solid state and materials sciences
The art of forming materials into technologically useful artifacts by manipulation of the dislocation substructure dates back at least 8000 years to the Sumerian coppersmiths.1 Physical understanding of the mechanisms involved, on the other hand, began little more than 50 years ago; modem knowledge suggests that even…
Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsAluminum Alloy Microstructure Properties
Shelgon Yee、R.A. Oriani、M. Stratmann1991-01-01Journal of The Electrochemical Society
The principle of operation and the design of a scanning Kelvin microprobe for the determination of corrosion potential profiles are described. The profiles of Volta potentials on galvanically coupled metals under humidity films were determined and are compared to profiles for the same metals under dry nitrogen. The re…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsNon-Destructive Testing Techniques
John R. Collier、Billie J. Collier、Gina O'Toole 等 4 位作者1991-01-01Journal of the Textile Institute
The draping behaviour of fabric treated as an orthotropic shell membrane is predicted by using a geometric non-linear finite-element method, and the results are compared with actual behaviour. A drape tester employing photovoltaic cells was designed and constructed to determine the drape coefficient of fabric specimen…
Dyeing and Modifying Textile FibersTextile materials and evaluationsStructural Analysis and Optimization
Harvey P. Hack、John R. Scully1991-01-01Journal of The Electrochemical Society
The breakpoint frequency method, which allows determination of the electrochemically active area of a coated metal in seawater, is described. A computer model is used to explain the basis of the breakpoint method, and the model is compared to impedance and visual data from epoxy‐coated steel panels in ASTM artificial…
Corrosion Behavior and InhibitionConcrete Corrosion and DurabilityNon-Destructive Testing Techniques
Y. S. Lin、Anthonie Burggraaf1991-01-01Journal of the American Ceramic Society
A crack‐ and pinhole‐free composite membrane consisting of an α‐alumina support and a modified γ‐alumina top layer which is thermally stable up to 1100°C was prepared by the sol–gel method. The supported thermally stable top layer was made by dipcoating the support with a boehmite sol doped with lanthanum nitrate. The…
Advanced ceramic materials synthesisMembrane Separation and Gas TransportMicrowave Dielectric Ceramics Synthesis
Dominic Curran、James Grimshaw、Sarath D. Perera1991-01-01Chemical Society Reviews
D. Curran, J. Grimshaw and S. D. Perera, Chem. Soc. Rev., 1991, 20, 391 DOI: 10.1039/CS9912000391
Electrochemical sensors and biosensorsConducting polymers and applicationsPorphyrin and Phthalocyanine Chemistry