H. K. Mahabadi1985-06-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of chain length dependence of termination rate constant on the kinetics of free-radical polymerization. 1. Evaluation of an analytical expression relating the apparent rate constant of termination to the number-average degree of polymerizationHadi K. MahabadiCite thi…
Polymer crystallization and propertiesAdvanced Polymer Synthesis and CharacterizationBlock Copolymer Self-Assembly
Yoshio Homma、Sukeyoshi Tsunekawa1985-06-01Journal of The Electrochemical Society
Planarization of multilevel interconnection is most effective for achieving a higher packing density. However, it is shown by computer simulation that degradation of metallization step coverage becomes serious as the via aspect ratio increases. Conventional deposition methods, in which emitted particles flow onto the…
Metal and Thin Film MechanicsElectronic Packaging and Soldering TechnologiesCopper Interconnects and Reliability
Masaaki Yamaguchi1985-06-01Philosophical Magazine B
The relationship between the optical gap and chemical composition in chalcogenide glasses is discussed in terms of the average heat of atomization and the average coordination number. These are computed from the heats of atomization and the coordination number of the elements, respectively.
Glass properties and applicationsPhase-change materials and chalcogenidesOptical properties and cooling technologies in crystalline materials
Mitsuru Akashi、Isamu Kirikihira、Noriyuki Miyauchi1985-06-01Die Angewandte Makromolekulare Chemie
Abstract The esterification of a carboxy group terminated vinylpyrrolidone oligomer with chloromethylstyrene under mild conditions resulted in a styryl terminated oligovinylpyrrolidone macromonomer. The purity of the obtained macromonomer was greater than 95%. Copolymerization of the macromonomer with styrene in ethan…
Advanced Polymer Synthesis and CharacterizationSynthesis and properties of polymersSilicone and Siloxane Chemistry
T. Takekoshi、J. E. Kochanowski、J. S. Manello 等 4 位作者1985-06-01Journal of Polymer Science Polymer Chemistry Edition
Abstract A general synthetic method and characterization of bis(ether anhydride)s, the ether containing aromatic dianhydrides of the following structure, are presented. magnified image The method involves aromatic nitro‐displacement of N ‐substituted 3‐ or 4‐nitrophthalimide with bisphenoxides to form N ‐substituted a…
Fuel Cells and Related MaterialsSynthetic Organic Chemistry MethodsSynthesis and properties of polymers
R. L. Hervig、Alexandra Navrotsky1985-06-01Journal of the American Ceramic Society
Glasses synthesized in the system Na 2 0‐B 2 0 3 −SiO 2 were studied by high‐temperature (974 K) solution calorimetry. The sign of the heats of mixing along four joins in the ternary reflects the presence or absence of glass‐glass immiscibility. Calculations of binary phase diagrams using thermochemical data and a con…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsNuclear materials and radiation effects
Fred C. Anson、Ching Long. Ni、Jean Michel Savéant1985-06-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrocatalysis at redox polymer electrodes with separation of the catalytic and charge propagation roles. Reduction of dioxygen to hydrogen peroxide as catalyzed by cobalt(II) tetrakis(4-N-methylpyridyl)porphyrinFred C. Anson, Ching Long Ni, and Jean Michel SaveantCite thi…
Electrochemical sensors and biosensorsConducting polymers and applicationsElectrochemical Analysis and Applications
Yoshio Imai、N. N. Maldar、Masa‐aki Kakimoto1985-06-01Journal of Polymer Science Polymer Chemistry Edition
Abstract New soluble aromatic polyamides with inherent viscosities of 1.0–1.7 dL/g were prepared by the low temperature solution polycondensation of 2,5‐bis(4‐aminophenyl)—3,4‐diphenylthiophene, bis(4‐aminophenyl) ether, and aromatic diacid chlorides in N , N ‐dimethylacetamide. The polyamides and copolyamides are gen…
Epoxy Resin Curing ProcessesSynthesis and properties of polymersSynthesis of Tetrazole Derivatives
R. J. Hill、C. J. Howard1985-06-01Journal of Applied Crystallography
Analyses of high-resolution neutron powder diffraction data, using both the Pearson VII and pseudo-Voigt peak shape functions, have revealed a range of peak shapes from essentially Gaussian to Lorentzian and beyond. Moreover, the refinements show that the Lorentzian character of the peaks in each pattern increases wit…
Crystallography and molecular interactionsNuclear Physics and ApplicationsX-ray Diffraction in Crystallography
A. Violante、P. M. Huang1985-06-01Clays and Clay Minerals
Abstract Hydroxide and oxyhydroxide products of aluminum were formed at room temperature at an initial Al concentration of 2 × 10 -3 M, pH 8.2, and at varying concentrations of organic and inorganic ligands commonly found in nature. The effectiveness of the ligands in promoting the formation of noncrystalline products…
Mesoporous Materials and CatalysisLayered Double Hydroxides Synthesis and ApplicationsMagnesium Oxide Properties and Applications
Vivienne Cassie1985-06-01Phycologia
No abstract available.
Diatoms and Algae Research
Atul H. Chokshi、John R. Porter1985-06-01Journal of the American Ceramic Society
Whisker‐reinforced ceramic composites with enhanced fracture toughness properties are being developed. The creep behavior of such a composite was studied. The introduction of silicon carbide whiskers significantly improves the creep resistance of polycrystaline alumina.
Advanced ceramic materials synthesisRecycling and utilization of industrial and municipal waste in materials productionMaterial Properties and Applications
Carl Frieden1985-06-01Annual Review of Biophysics and Biophysical Chemistry
CONTENTS PERSPECTIVES AND SUMMARy 189 GENERAL PROPERTIES OF THE POLYMERIZING UNIT 190 Actin 190 Tubulin 191 ASSAY METHODS FOR THE POLYMERIZATION PROCESS 192 Actin 192 Tubulin 193 THE SIMPLE MODEL FOR ACTIN AND TUBULIN POLYMERIZATION 194 Kinetic Theory 195 Experimental Results 197 Fragmentation and Reannealing 200 THE…
biodegradable polymer synthesis and properties
Donald F. Charles1985-06-01Ecology
Relationships between surface sediment diatom assemblages and lakewater characteristics were studied in 38 lakes in the Adirondack Mountains of northern New York. Most of the lakes are dilute, poorly buffered, and oligotrophic to mesotrophic. The diatom flora (240 taxa identified) is typical for circumneutral to acidi…
Soil and Water Nutrient DynamicsDiatoms and Algae ResearchAquatic Invertebrate Ecology and Behavior
Christoph Schnieders、Walter Huber、Johann Lex 等 4 位作者1985-06-01Angewandte Chemie International Edition in English
The stable double-bond isomers 1 and 1′ were one of the surprises which the seldom investigated 1,5-diazocines have had to offer. In all other substituted compounds of this class only one isomer with fixed double bonds exists. The dianions are symmetric, diatropic 10π systems with delocalized π bonding; the radical an…
Porphyrin and Phthalocyanine ChemistryCyclopropane Reaction MechanismsOrganic Chemistry Cycloaddition Reactions
P. Cocolios、Roger Guilard、Daniel Bayeul 等 4 位作者1985-06-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbon dioxide insertion into the methyl-indium .sigma. bond of methylindium(III) porphyrins. Molecular stereochemistry of (acetato)(2,3,7,8,12,13,17,18-octaethylporphyrinato)indium(III)P. Cocolios, R. Guilard, D. Bayeul, and C. LecomteCite this: Inorg. Chem. 1985, 24, 13, 2…
Supramolecular Chemistry and ComplexesPorphyrin and Phthalocyanine ChemistryCO2 Reduction Techniques and Catalysts
Heinrich Möller、G. Welsch1985-06-01Journal of the American Ceramic Society
The sintering behavior of compacts of ultrafine silicon powder (0.02 to 0.1 μm particle size) was investigated. Two sintering modes occur: normal sintering associated with densification and subnormal sintering without densification. The micro‐structure developed in normal sintering has a fine grain size (0.05 to 0.3 μ…
Silicon and Solar Cell TechnologiesSilicon Nanostructures and PhotoluminescenceSemiconductor materials and interfaces
D. J. Cornelius、C. M. Monroe1985-06-01Polymer Engineering and Science
Abstract In this paper a brief description of the synthesis of silicone polymers and their compounding is given, and the wide range of properties available in Silastic® Registered trademark of Dow Corning Corporation. silicone rubber is discussed. Some of the key properties are related to several applications. These i…
Silicone and Siloxane Chemistry
A. Ram、O. Zilber、S. Kenig1985-06-01Polymer Engineering and Science
Abstract Polycarbonate (PC), one of the leading engineering plastics, suffers from deterioration under harsh environmental conditions. It is sensitive to the effects of light (UV) radiation, to thermal degradation, and to the attack of hot water, due to hydrolysis. By exposure of various commercial PC grades—at variou…
Polymer crystallization and propertiesMicroplastics and Plastic PollutionMaterial Properties and Processing
Kenji Uchino、Motoya Aizawa、Late Shoichiro Nomura1985-06-01Ferroelectrics
Photostriction explainable by the superposition of the bulk photovoltaic effect and piezoelectricity has been investigated intensively in the solid solution ceramics (Pb, La) (Zr, Ti)O3 from an applicational point of view. Three key points are described for improving response speed of the photostriction; composition s…
Ferroelectric and Piezoelectric MaterialsPerovskite Materials and ApplicationsGlass properties and applications