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Poly(aryl ether ketone) (PAEK) block and chain-extended copolymers. 2. Preparation and characterization of chain-extended PAEK copolymers and poly(ether ketone ketone)/poly(ether ether ketone) block copolymers

J. E. Harris、Paul A. Winslow、James H. Botkin 等 8 位作者1993-04-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPoly(aryl ether ketone) (PAEK) block and chain-extended copolymers. 2. Preparation and characterization of chain-extended PAEK copolymers and poly(ether ketone ketone)/poly(ether ether ketone) block copolymersJ. E. Harris, P. A. Winslow, J. H. Botkin, L. M. Maresca, R. A. Cl…

Polymer crystallization and propertiesMembrane Separation and Gas TransportSynthesis and properties of polymers

The modulated structure of the commensurate misfit-layer compound (BiSe)1.09TaSe2

Vaclav Petricek、I. Cisarova、J. L. de Boer 等 7 位作者1993-04-01Acta Crystallographica Section B Structural Science

Single-crystal X-ray diffraction (Mo Kalpha radiation, lambda = 0.71073 angstrom) was used to determine the structure Of the commensurate inorganic misfit-layer compound (BiSe)alpha0TaSe2, alpha0 = 12/11 congruent-to 1.09. The structure is described as a (3 + 1)-dimensional intergrowth compound with two subsystems and…

Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyInorganic Chemistry and Materials

Effective dielectric response of a composite with aligned spheroidal inclusions

Rubén G. Barrera、Jairo Giraldo、W. Luis Mochán1993-04-01Physical review. B, Condensed matter

The effective dielectric response ${\mathrm{\ensuremath{\epsilon}}}_{\mathit{M}}$ of a composite with aligned spherodial inclusions is calculated. Using the dipolar and the mean-field approximation (MFA) an analytical expression for ${\mathrm{\ensuremath{\epsilon}}}_{\mathit{M}}$ as a functional of the two-particle di…

Multiferroics and related materialsElectromagnetic wave absorption materialsDielectric materials and actuators

Ternäre Halogenide vom Typ A3MX6. II. Das System Ag3−xNaxYCl6: Synthese, Strukturen, Ionenleitfähigkeit

Frauke Stenzel、Gerd Meyer1993-04-01Zeitschrift für anorganische und allgemeine Chemie

Abstract Es wurde der Einfluß der Substitution von Ag + durch Na + auf die Kristallstruktur und die Ionenleitfähigkeit von Ag 3 YCl 6 (aufgefüllter LiSbF 6 ‐Typ) untersucht. Das System Ag 3−x Na x YCl 6 zeigt vollständige Mischkristallbildung. Der aufgefüllte LiSbF 6 ‐Typ tritt über den gesamten Bereich auf. Erst bei…

Crystal Structures and PropertiesInorganic Chemistry and MaterialsInorganic Fluorides and Related Compounds

CuBr by XPS

R. P. Vasquez1993-04-01Surface Science Spectra

X-ray photoemission measurements of high purity CuBr are presented. XPS studies of Cu compounds in this laboratory have been motivated by the need to identify species on chemically-etched high temperature superconductor surfaces [see R. P. Vasquez, M. C. Foote, and B. D. Hunt, J. Appl. Phys. 66, 4866 (1989)].

Copper Interconnects and ReliabilityElectron and X-Ray Spectroscopy TechniquesSurface and Thin Film Phenomena

Application of Measurement Models for Analysis of Impedance Spectra

Pankaj Agarwal、Oliver Moghissi、Mark E. Orazem 等 4 位作者1993-04-01CORROSION

Measurement models have been applied to electrochemical impedance data collected at the corrosion potential for a copper disk rotating in alkaline- and acid-aerated 0.5 M chloride solutions. Several applications of measurement models for the interpretation of experimental impedance data are demonstrated. Corrosion is…

Corrosion Behavior and InhibitionAnalytical Chemistry and SensorsConcrete Corrosion and Durability

Zero-sound-like modes in simple liquid metals

Chr. Morkel、T. Bodensteiner、Hans Gemperlein1993-04-01Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Coherent neutron-scattering experiments on liquid cesium and rubidium near the melting point reveal an anomalous dispersion of collective modes for frequencies \ensuremath{\omega}${\mathrm{\ensuremath{\tau}}}_{\mathit{M}}$\ensuremath{\gg}1 with ${\mathrm{\ensuremath{\tau}}}_{\mathit{M}}$ the Maxwell relaxation time fo…

High-pressure geophysics and materialsMaterial Dynamics and PropertiesTheoretical and Computational Physics

Synthesis of the first .alpha.-linked quaterpyrrole

Hidetsugu Ikeda、Jonathan L. Sessler1993-04-01The Journal of Organic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of the first .alpha.-linked quaterpyrroleHidetsugu Ikeda and Jonathan L. SesslerCite this: J. Org. Chem. 1993, 58, 8, 2340–2342Publication Date (Print):April 1, 1993Publication History Published online1 May 2002Published inissue 1 April 1993https://pubs.acs.org/doi…

Porphyrin and Phthalocyanine ChemistryMolecular Junctions and NanostructuresFerrocene Chemistry and Applications

Comparison of I/S Transformation and Maturity of Organic Matter at Elevated Temperatures

B. Velde、Bruno Lanson1993-04-01Clays and Clay Minerals

Abstract Comparing the state of reaction advancement of I/S (illite content of illite/smectite mixed layer minerals) and organic matter (vitrinite reflectance) in instances of high temperature gradients allows one to observe the evolution of geologic materials under extreme conditions. In a geothermally heated sedimen…

Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceMachine Learning in Materials Science

Electrical Conduction in Aluminum Nitride

Se‐Aug Jang、Gyeong Man Choi1993-04-01Journal of the American Ceramic Society

Electrical conductivities of aluminum nitride (AIN) doped with various ions of different sizes and valences have been measured at elevated temperatures. Grain conductivities of samples doped with large cations, obtained from complex impedance patterns, were much higher than those doped with small cations. The temperat…

Advanced ceramic materials synthesisSemiconductor materials and devicesAcoustic Wave Resonator Technologies

Synthesis of Aluminum Nitride/Boron Nitride Composite Materials

Tongsan D. Xiao、Kenneth E. Gonsalves、Peter R. Strutt1993-04-01Journal of the American Ceramic Society

Aluminum nitride/boron nitride composite was synthesized by using boric acid, urea, and aluminum chloride (or aluminum lactate) as the starting compounds. The starting materials were dissolved in water and mixed homogeneously. Ammonolysis of this aqueous solution resulted in the formation of a precomposite gel, which…

Advanced ceramic materials synthesisBoron and Carbon Nanomaterials ResearchMXene and MAX Phase Materials

Effect of substrate preparation on smectic liquid crystal alignment: A structural study

Elisabeth Smela、L. J. Martı́nez-Miranda1993-04-01Journal of Applied Physics

Octylcyanobiphenyl, a bilayer smectic A liquid crystal at room temperature, was deposited on gratings, grids, and flat surfaces, and was studied using high-resolution x-ray scattering at shallow angles of incidence. One surface of the film was in contact with air and the other was in contact with the glass or silicon…

Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsAdvanced Materials and Mechanics

Aryl 1,5-dithia-2,4,6,8-tetrazocines. A synthetic, electrochemical, and structural investigation

Renè T. Boeré、Klaus H. Moock、Sean D. Derrick 等 7 位作者1993-04-01Canadian Journal of Chemistry

New preparative routes to the title compounds are reported in which the yields are substantially improved over previous methods. In one method, reaction of O 2 with a mixture of XC 6 H 4 CN 2 S 2 + Cl − and Ph 3 Sb leads to the products in 40–60% yield. In another, the reaction of the same salts with silylated amidine…

Magnetism in coordination complexesOrganic and Molecular Conductors ResearchInorganic Chemistry and Materials

Contributions of Short-Range and Classical Electromagnetic Mechanisms to Surface-Enhanced Raman Scattering from Several Types of Biomolecules Adsorbed on Cold-Deposited Island Films

Konstantin Sokolov、Peter Khodorchenko、Andrei V. Petukhov 等 6 位作者1993-04-01Applied Spectroscopy

Surface-enhanced Raman scattering (SERS) spectra of three different classes of adsorbates have been analyzed: (1) native and denatured calf thymus DNA and adenine, as examples of molecules with electronic transitions in the UV region only; (2) flavine adenine dinucleotide (FAD) and doxorubicin (DOX), as examples of ch…

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesProtein Interaction Studies and Fluorescence Analysis

Precipitation sequence for simultaneous continuous and discontinuous modes in Cu–Be binary alloys

H. Tsubakino、Ryoichi Nozato、Atsushi Yamamoto1993-04-01Materials Science and Technology

The precipitation sequence of the discontinuous and continuous modes in Cu–0·9Be and Cu–1·4Be binary alloys (compositions in wt-%) has been studied primarily via metallographic observations and hardness measurements. A single C curve and triple C curves separated by two temperatures T 1 and T 2 (T 1 >T 2 ) are obta…

Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesMetallurgy and Material Forming

Synthesis by laser ablation and characterization of pure germanium-carbon alloy thin films

Haojie Yuan、R. Stanley Williams1993-04-01Chemistry of Materials

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis by laser ablation and characterization of pure germanium-carbon alloy thin filmsHaojie Yuan and R. Stanley WilliamsCite this: Chem. Mater. 1993, 5, 4, 479–485Publication Date (Print):April 1, 1993Publication History Published online1 May 2002Published inissue 1 Apr…

Semiconductor materials and devicesDiamond and Carbon-based Materials ResearchIon-surface interactions and analysis

Preparation and chemistry of the active copper species derived from CuI.cntdot.PBu3, CuI.cntdot.PPh3, and CuCN.cntdot.nLiX complexes

Reuben D. Rieke、Douglas E. Stack、Bryan T. Dawson 等 4 位作者1993-04-01The Journal of Organic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and chemistry of the active copper species derived from CuI.cntdot.PBu3, CuI.cntdot.PPh3, and CuCN.cntdot.nLiX complexesReuben D. Rieke, Douglas E. Stack, Bryan T. Dawson, and Tse Chong WuCite this: J. Org. Chem. 1993, 58, 9, 2483–2491Publication Date (Print):Apr…

Organometallic Complex Synthesis and CatalysisMetal complexes synthesis and propertiesMagnetism in coordination complexes

A Coupled Solution Method for Predicting the Thermostructural Response of Decomposing, Expanding Polymeric Composites

Roy M. Sullivan1993-04-01Journal of Composite Materials

A new solution method has recently been developed to analyze the ther mal and structural response of polymeric composites during chemical decomposition. This method extends the numerical approach of previous researchers by including the solution for the structural response of the decomposing material. The method coupl…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesEpoxy Resin Curing Processes

Synthesis, characterization, and bonding of indium clusters: A3Na26In48 (A = K, Rb, Cs) with a novel cubic network of arachno- and closo-In12 clusters

Slavi C. Sevov、John D. Corbett1993-04-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, characterization, and bonding of indium clusters: A3Na26In48 (A = K, Rb, Cs) with a novel cubic network of arachno- and closo-In12 clustersSlavi C. Sevov and John D. CorbettCite this: Inorg. Chem. 1993, 32, 9, 1612–1615Publication Date (Print):April 1, 1993Publica…

Synthesis and characterization of novel inorganic/organometallic compoundsNanocluster Synthesis and ApplicationsInorganic Chemistry and Materials

Polyselenide chemistry of indium and thallium in dimethylformamide, acetonitrile, and water. Syntheses, structures, and properties of the new complexes [In2(Se4)2(Se5)]4-, [In2Se2(Se4)2]2-, and [In3Se3(Se4)3]3-

Sandeep S. Dhingra、Mercouri G. Kanatzidis1993-04-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyselenide chemistry of indium and thallium in dimethylformamide, acetonitrile, and water. Syntheses, structures, and properties of the new complexes [In2(Se4)2(Se5)]4-, [In2Se2(Se4)2]2-, and [In3Se3(Se4)3]3-Sandeep S. Dhingra and Mercouri G. KanatzidisCite this: Inorg. Ch…

Crystal Structures and PropertiesOrganometallic Compounds Synthesis and CharacterizationInorganic Chemistry and Materials