Paul Hamon、Loı̈c Toupet、Jean‐René Hamon 等 4 位作者1994-01-01Journal of the Chemical Society Chemical Communications
The σ-acetone complex [Fe(η5-C5Me5)(η2-dppe)(σ-OCMe2)]+ OSO2CF3–, (2 dppe = Ph2PCH2CH2PPh2) is cleanly synthesised by treatment of the hydride compound [Fe(η5-C5Me5)(η2-dppe)H]1 with MeOSO2CF3 in Et2O followed by crystallization from acetone–pentane; this compound, characterized by a single crystal X-ray diffraction,…
Organometallic Complex Synthesis and CatalysisMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
Kohsaku Ushioda、Naoki Yoshinaga、Osamu Akisue1994-01-01ISIJ International
The influences of Mn of the recrystallization behavior and the formation of recrystallization texture in Ti-added ultralow-C steels were investigated and compared with that of low-C Al-killed steels. In Ti-added ultralow-C steels, Mn does not influence the recovery, the nucleation and growth rate of recrystallization,…
Microstructure and Mechanical Properties of SteelsMagnetic Properties and ApplicationsNon-Destructive Testing Techniques
Wei Huang、G. F. Tuthill1994-01-01Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
We calculate the continuous dependence of structure and shape of tangentially anchored nematic liquid-crystal microdroplets on the parameters of anchoring strength ${\mathit{w}}_{0}$ and radius r, at fixed temperature, using a numerical relaxation method and Landau--de Gennes theory. The structure is characterized by…
Liquid Crystal Research AdvancementsAdvanced Materials and MechanicsPlant Reproductive Biology
G. S. Frankel、A. G. Schrott、Alison J. Davenport 等 6 位作者1994-01-01Journal of The Electrochemical Society
The chemistry of chromium in the passive film on sputter‐deposited chromium and thin films has been investigated in situ in an electrochemical cell under potential control by studying x‐ray absorption near edge structure. At high potentials, Cr in the alloys was oxidized to the 6‐valent state. Depending on the rate of…
Corrosion Behavior and InhibitionMetal and Thin Film MechanicsElectron and X-Ray Spectroscopy Techniques
Pier Francesco Rossi、G. Oliveri、M. Bassoli1994-01-01Journal of the Chemical Society Faraday Transactions
The differential heats and the adsorption isotherms of water on α-Al2O3 have been measured at five different temperatures in the range 200–400 °C using a microcalorimetric–volumetric apparatus. The amounts of water adsorbed and integral heats decreased with increasing temperature. At all temperatures the differential…
Zeolite Catalysis and SynthesisAdvanced Thermoelectric Materials and DevicesThermal properties of materials
Zhi Yuan Wang、Qi Yu1994-01-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPoly(aryl prehnitimide)sZhi Yuan Wang and Yu QiCite this: Macromolecules 1994, 27, 2, 625–628Publication Date (Print):January 1, 1994Publication History Published online1 May 2002Published inissue 1 January 1994https://pubs.acs.org/doi/10.1021/ma00080a048https://doi.org/10.1…
Organometallic Complex Synthesis and CatalysisSynthesis and characterization of novel inorganic/organometallic compoundsSynthesis and properties of polymers
Takashi Kashiwagi、Yoshihiro Ito、Yukio Imanishi1994-01-01Journal of Biomaterials Science Polymer Edition
New polyetherurethanes carrying fluoroalkyl substituents in the side chains were synthesized from N,N-di(hydroxyethyl)heptadecafluorooctyl-sulfonamide (a chain extender), 4,4'-disocyanatodiphenylmethane, and poly(tetramethylene glycol). Various kinds of polyetherurethanes having different tensile properties were prepa…
biodegradable polymer synthesis and propertiesPolymer Surface Interaction StudiesSynthetic Organic Chemistry Methods
Stanisław J. Kłosowicz、Zeev B. Alfassi1994-01-01Molecular crystals and liquid crystals science technology. Section A, Molecular crystals and liquid crystals/Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals
An overview of the present knowledge about the effect of ionizing radiation on properties of cholesteric liquid crystals is given. It includes the effects caused by either electromagnetic radiation or particles. Particular attention has been paid to the liquid-crystalline properties of cholesterol derivatives and thei…
Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesFood Chemistry and Fat Analysis
Viv Jones、M. Kalaji、Gavin S. Walker 等 5 位作者1994-01-01Journal of the Chemical Society Faraday Transactions
The immobilisation of heteropolyacids into polyaniline films has been studied using the probe beam deflection technique, X-ray photoelectron spectroscopy and scanning electron microscopy. The results indicate that the heteropolyanions modify the redox behaviour and morphology of polyaniline.
Electrochemical sensors and biosensorsConducting polymers and applicationsAnalytical Chemistry and Sensors
Xiang Zhou、Zhongyuan Zhou、Thomas C. W. Mak 等 4 位作者1994-01-01Journal of the Chemical Society Perkin Transactions 1
β-Octasubstituted tetramesitylporphyrins have been prepared in good yields by Suzuki cross coupling of β-octabromotetramesitylporphyrin with aryl- and alkyl-boronic acids. A single-crystal X-ray analysis of -octamethyltetramesitylporphyrin 3a shows a saddled non-planar structure.
Porphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research StudiesPorphyrin Metabolism and Disorders
A Maillard、H. Touron、J-L Séran 等 4 位作者1994-01-01OpenAlex
The swelling and irradiation creep behavior of cold-worked 316Ti and 15-15Ti, two variants of austenitic steels in use as core component materials of the French fast reactors, are compared. The use of 15-15Ti leads to a significant improvement due to an increase in the incubation dose for swelling. The same phenomena…
Fusion materials and technologiesNuclear Materials and PropertiesHigh-Velocity Impact and Material Behavior
Tomohiko Kuwabara、Kohei Suzuki1994-01-01Plant and Cell Physiology
An endoproteinase, which specifically cleaves the Pro12-Leu13 bond of the extrinsic 18-kDa protein of PSII, was purified from PSII membranes of spinach. The presence of 0.05% (w/v) Tween 20 and 1 M NaCl was essential for maintenance of proteolytic activity during the purification. The molecular mass of the enzyme was…
Ubiquitin and proteasome pathwaysEnzyme Structure and FunctionATP Synthase and ATPases Research
D.C.C. Lam、Mitsuo NAKAGAWA1994-01-01Journal of the Ceramic Society of Japan
In classical packing theory, composite packing density of a bimodal mixture is increased by increasing the component fine or coarse packing density via particle size distribution broadening. In this study, the effects of particle size distribution shape of component fine and coarse particle distributions on composite…
Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesAnalytical Chemistry and Chromatography
Sengli WU、Takeshi Sugiyama、Kouichi Morioka 等 5 位作者1994-01-01鐵と鋼 : 日本鐡鋼協會々誌
Since equipment, built to eliminate the NOx gas in the off gas of iron are sinter plant, is huge inci expensive, it is desirable that a more simple and economical method to eliminate the NO gas is established.The method to eliminate the NO gas near the coke in the iron are sinter bed has been studied. As a basic study…
Catalytic Processes in Materials ScienceIron and Steelmaking ProcessesIndustrial Gas Emission Control
Feng Ren、Shingo Ishida、Shinya MINETA1994-01-01Journal of the Ceramic Society of Japan
Hexagonal BaTiO3 was formed by doping only 2mol% of Mn. Investigation of this effect of Mn in terms of its valency state and size of Mn ion revealed that the small size of Mn4+ ion is a dominant factor favoring the formation of the hexagonal phase.
Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsElectronic and Structural Properties of Oxides
E. Pantos、J. Bordas1994-01-01Pure and Applied Chemistry
Abstract
Enzyme Structure and Function
Thomas Brock、David Sherrington、Jonathan Swindell1994-01-01Journal of Materials Chemistry
Porous particulate polyimides have been prepared by four suspension polycondensation procedures. The first group were linear polyimides prepared in suspension in liquid paraffin from a poly(amido acid) pre-polymer solution. Groups two to four were crosslinked using a tetraamine component. The first of these employed a…
Mesoporous Materials and CatalysisCovalent Organic Framework ApplicationsSynthesis and properties of polymers
A. Gil、Mario Montes1994-01-01Journal of Materials Chemistry
The effect of thermal treatment on the microporous accessibility of an aluminium pillared clay has been investigated. When the calcination temperature was increased up to 673 K, the specific total (or micropore) surface areas increased, but a further increase in the calcination temperature produced a decrease in the s…
Concrete and Cement Materials ResearchMesoporous Materials and CatalysisClay minerals and soil interactions
David Dillard、Jeffrey A. Hinkley、W. Steven Johnson 等 4 位作者1994-01-01The Journal of Adhesion
Some currently-available formulations of LaRC™-TPI, a thermoplastic polyimide originally developed at NASA-Langley, were found to be highly susceptible to environmental stress cracking when exposed to solvents such as acetone, toluene, diglyme and methyl ethyl ketone. The combination of stress and solvent led to rapid…
Mechanical Behavior of CompositesSynthesis and properties of polymersSilicone and Siloxane Chemistry
G. L'ABBE、Bart Haelterman、Wim Dehaen1994-01-01Journal of the Chemical Society Perkin Transactions 1
The title compound 3 is readily available from 1, 3, 5-triacetylbenzene in a three-step procedure and is an efficient trifunctional core reagent for the synthesis of dendrimers.
Chemical Synthesis and AnalysisDendrimers and Hyperbranched PolymersSynthesis and Characterization of Heterocyclic Compounds