Leonard F. Lindoy、Hyacinth C. Lip、Hon Way Louie 等 5 位作者1977-01-01Journal of the Chemical Society Chemical Communications
The changes in the 1H n.m.r. spectrum of tris(pentane-2,4-dionato)cobalt(III) in CDCl3 on incremental addition of tris(1,1,1,2,2,3,3,-heptafluoro-7,7-[2H6]dimethyl[2H3]octane-4,6-dionato)europium {Eu([2H9]fod)3} have been determined at 32°C; 1 : 1 adduct formation occurs, chemical exchange with respect to the n.m.r. t…
Radioactive element chemistry and processingLanthanide and Transition Metal ComplexesInorganic and Organometallic Chemistry
R. A. Gledhill、A. J. Kinloch、Stephen Shaw1977-01-01The Journal of Adhesion
Metals and metal oxides are usually classed as high-energy solids since in the ultra-clean state they have surface free energies typically greater than 500mJ/m2. However, Bernett and Zisman1 measured the critical surface tension, yc , of wetting of various hydrophilic, high-energy, metal oxides and pure metals at two…
Surface Modification and SuperhydrophobicityAdhesion, Friction, and Surface Interactionsnanoparticles nucleation surface interactions
Donald J. Lyman、W. J. Seare、Dominic Albo 等 7 位作者1977-01-01International Journal of Polymeric Materials
Review of polyurethane elastomers and several applications as surgical implants.
Polymer composites and self-healingTribology and Wear AnalysisNerve Injury and Rehabilitation
Werner Büchner、Hans Niederprüm1977-01-01Pure and Applied Chemistry
Conference International Meeting on Boron Chemistry, International Symposium on Boron Chemistry, IMEB, Boron Chemistry, Third, Munich & Ettal, Federal Republic of Germany, 1976-07-05–1976-07-09 Published Online: 2009-01-01 Published in Print: 1977-01-01 © 2013 Walter de Gruyter GmbH, Berlin/Boston
Hydrogen Storage and Materials
A.K. Jonscher、D. C. Dube1977-01-01Ferroelectrics
Measurements are reported of the complex dielectric permittivity, ε(ω), of single crystal tri-glycine sulphate (TGS) at temperatures on either side of the ferroelectric Curie temperature, Tc, covering the frequency range ω/2π = 10-105 Hz. By contrast with the reported strong dispersion in the GHz region, the dielectri…
Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesSolid-state spectroscopy and crystallography
Jacek F. Gieras1977-01-01Proceedings of the Institution of Electrical Engineers
The steady-state solution of electromagnetic-field problems in ferromagnetic materials is given. The effects of magnetic saturation and hysteresis are included. The solution is based on the differential diffusion equation assuming variable complex magnetic permeability. A precise formula is given to calculate the tota…
Microstructure and Mechanical Properties of SteelsMagnetic Properties and ApplicationsInduction Heating and Inverter Technology
Junji Shirafuji、Gi Il Kim、Yoshio Inuishi1977-01-01Japanese Journal of Applied Physics
The photoluminescence spectra in Ge 1- x Se x glasses with a composition of 0.5≤ x ≤0.9 along with the optical absorption spectra have been measured. The position of the emission peak is almost independent of the Se composition. The emission intensity, however, is most intense for the composition Ge–Se 2 , indicating…
Glass properties and applicationsChalcogenide Semiconductor Thin FilmsPhase-change materials and chalcogenides
B. Siskind、D. M. Gruen、M. K. Ravi Varma1977-01-01Journal of Vacuum Science and Technology
Rutile (TiO2) implanted with 10-keV H+ and D+ exhibits broad ir absorption bands at 3400 and 2505 cm−1, respectively. The D+ implantation also induces a sharp band at 2438 cm−1. This 2438-cm−1 band corresponds to the sharp hydroxyl absorption peak at 3277 cm−1 typically present in flame-grown rutile crystals. In addit…
Luminescence Properties of Advanced MaterialsQuantum Dots Synthesis And PropertiesIon-surface interactions and analysis
David M. Adams、David C. Stevens1977-01-01Journal of the Chemical Society Dalton Transactions
All the fundamental modes of vibration of tetragonal PbO have been observed and all but one assigned unequivocally by single-crystal techniques: B1g 338.7, A1g 146.5, Eg 321.5 and 81.0, A2u 116, and Eu 243 cm–1. From the i.r. longitudinal and transverse optic (LO and TO) frequencies, the principal components of the di…
Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyX-ray Diffraction in Crystallography
Akira Yasunishi1977-01-01JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Solubilities of oxygen in aqueous sodium sulfate solutions have been measured at an oxygen partial pressure of 1 atm and temperatures of 15, 25 and 35°C by the gas saturation method. The results are not correlated by the empirical Setschenow equation. The estimated solubility of the system at 25°C by the method of van…
Calcium Carbonate Crystallization and Inhibition
Charles A. Brown、Brian T. Heaton、Paulo Chini 等 5 位作者1977-01-01Journal of the Chemical Society Chemical Communications
195 Pt n.m.r. data are reported for [Ptn(CO)2n]2–(n= 3, 6, or 9) and, when n= 9, the spectra are consistent with rotation of the outer Pt3-triangles with respect to the middle triangle about the principal 3-fold axis; inter-exchange of Pt3-triangles occurs in mixtures of [Pt9(CO)18]2– and [Pt12(CO)24]2– at 25°C.
Organometallic Complex Synthesis and CatalysisMetal complexes synthesis and propertiesMagnetism in coordination complexes
Neil W. Taylor、E. B. Bagley1977-01-01Journal of Applied Polymer Science
Abstract When used as a thickening agent in aqueous suspension, hydrolyzed starch–polyacrylonitrile graft copolymer (H‐SPAN) has broadly variable rheological properties, such as viscosity, storage modulus, and stress overshoot characteristics. A series of H‐SPAN preparations with variable swelling ratio Q were made by…
Hydrogels: synthesis, properties, applicationsPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
F. Kiry、P. Martinoty1977-01-01Journal de physique
The real part R and the imaginary part X of the shear impedance for the nematic liquid crystal p-n-pentyl p'-cyanobiphenyl (PCB) were measured at 15 MHz. R and X are found to be equal in the nematic phase. Anisotropic viscosity coefficients are deduced from these measurements and the Rapini equality is verified.
Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesSurfactants and Colloidal Systems
John E. Spencer、G. Glass1977-01-01International Journal of Chemical Kinetics
Abstract A fast discharge flow apparatus equipped for EPR detection of radicals has been used to investigate the reaction O + HBr → OH + Br. At 295°K, measurements showed that more than 97% of all OH produced in this reaction was formed initially in its first vibrationally excited state. Rate constants for physical de…
Catalytic Processes in Materials ScienceAdvanced oxidation water treatmentAnalytical Chemistry and Sensors
Yutaka Tokiwa、Tomoo Suzuki1977-01-01Agricultural and Biological Chemistry
Polyethylene adipate (PEA)-degrading enzyme of Penicillium sp. strain 14-3 was purified by precipitation with ammonium sulfate and chromatography with CM-Sephadex C-50. The purified enzyme was confirmed to be homogeneous by ultracentrifugal analysis and polyacrylamide gel electrophoresis. Some properties of the purifi…
Enzyme Catalysis and Immobilizationbiodegradable polymer synthesis and propertiesBiopolymer Synthesis and Applications
Tobias J. Lotz、Thomas A. Kaden1977-01-01Journal of the Chemical Society Chemical Communications
The co-ordination geometry of the NiII complex with the new macrocyclic ligand L, which contains a side chain, is controlled by the pH of the solution, the square-planar yellow diamagnetic form and the octahedral blue paramagnetic one being stable below and above pH 6·3, respectively.
Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
T.B. Lindemer、R.L. Pearson1977-01-01Journal of the American Ceramic Society
Nuclear fuels for the high‐temperature gas‐cooled reactor (HTGR) consist of spherical kernels of actinide compounds contained in gaslight pyrolytic carbon and SiC. The fuel kernels migrate up the temperature gradient and into the coating layers. A theoretical analysis of in‐reactor migration data indicates that a soli…
Nuclear reactor physics and engineeringRadioactive element chemistry and processingNuclear Materials and Properties
M. O. Weaver、Robert R. Montgomery、Lance Miller 等 6 位作者1977-01-01Starch - Stärke
Abstract The solid, water‐insoluble sorbent called Super Slurper that swells in water is a base hydrolyzed starch‐polyacrylonitrile graft copolymer in which the nitrile functionality has been converted to a mixture of carboxamide and alkali metal carboxylate. A process for making the polymer in multipound quantities h…
Hydrogels: synthesis, properties, applicationsbiodegradable polymer synthesis and properties
John E. Spencer、G. Glass1977-01-01International Journal of Chemical Kinetics
Abstract Reactions of OH( v = 1) with HBr, O, and CO have been studied at 295°K using a fast discharge flow apparatus: equation image The reaction O + HBr → OH( v = 1) + Br was used as a source of OH( v = 1), and subsequent chemical reactions of the excited radical were followed using EPR spectroscopy. Rate constants…
Atmospheric chemistry and aerosolsCatalytic Processes in Materials ScienceAdvanced oxidation water treatment
Peter G. Jones、A. G. Maddock、Martin J. Mays 等 5 位作者1977-01-01Journal of the Chemical Society Dalton Transactions
Mössbauer data for a large number of gold(I) complexes are presented. From these data and previously published work it is concluded that: (i) the bonding involves only 6S and 6p orbitals; (ii)π acceptance by ligands from gold is negligible; (iii) the gold atom tends to concentrate S character in bonds to such ligands…
Metal complexes synthesis and propertiesMagnetism in coordination complexesNanocluster Synthesis and Applications