Materials Literature
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By a simple modification, the rheovibron can be used to measure the dynamic mechanical properties of polymeric samples in equilibrium with liquids. Recent studies have shown that liquids capable of specific strong interaction with polymers can cause crystallization to occur. To demonstrate the utility of the modified…
Abstract On the basis of the diagonalization of the complete Coulomb repulsion, ligand field, spin‐orbit interaction, and Zeeman effect matrices, the magnetic properties were calculated for the octahedral and tetrahedral d 2 and d 8 electron systems. In addition, the corresponding tetragonally and trigonally distorted…
Abstract Wettability plays an important role in a number of industrial applications. Often it becomes desirable to control contact angles (wettability). For this purpose, two techniques for altering the contact angles of glass beads are described. These involve chemisorption of Silicones or Hexamethyldisilazane (HMDS)…
ADVERTISEMENT RETURN TO ISSUEPREVArticleMisinterpretation of isobestic points. Ambident properties of imidazoleDennis V. StynesCite this: Inorg. Chem. 1975, 14, 2, 453–454Publication Date (Print):February 1, 1975Publication History Published online1 May 2002Published inissue 1 February 1975https://pubs.acs.org/doi/10.…
To provide engineering data useful in the design, manufacture, and operation of seamless pressure vessels, extensive tests have been conducted in hydrogen at pressures ranging from 3000 to 14,000 psi (21–97 MN/m2) with precracked specimens of steels having a wide range of mechanical properties. The critical stress-int…
Abstract Ein einfaches Calorimeter zur Bestimmung der Mischungsenthalpien von geschmolzenen Salzen bei höheren Temperaturen wurde konstruiert. Es wurden die Mischungsenthalpien innerhalb der Serie von Systemen MeClGdCl 3 (Me Alkalimetall) und der Serie NaClLnCl 3 (Ln Lanthanoidenelement) sowie der Systeme NaBrNdBr…
Abstract Brillouin light scattering has been used to measure the sound velocities in polystyrene of two different molecular weights. The variation of sound velocity with temperature is related to volumetric expansion of the polymer. Using the thermal expansion data of Fox and Flory we have determined the Grüneisen num…
The corrosion resistance of various Ti-Ru alloys (0.07 to 0.55 Wt% Ru) has been evaluated and compared with published data on Ti-Pd alloys. The results show that Ti-Ru alloys (1) are comparable with Ti-Pd alloys in terms of corrosion resistance in dilute (0 to 10%) boiling H2SO4 solutions, and are only slightly inferi…
info:eu-repo/semantics/published
A practical method for calculating Clebsch−Gordan coefficients for crystal space groups is presented. It is based on properties of the space group irreducible representations as induced from ray representations of subgroups. Using this method, we obtain all Clebsch−Gordan coefficients for a family of representations i…
Using a double Townsend (uniform field) ionization chamber, the authors studied the ion conversion reactions involving SF 6 - and SF 5 - in SF 6 by observing, with mass spectrometer sampling, the processes occurring when these ions were injected separately from the source region into that where collisional detachment…
Tryptophanase from Escherichia coli B/qt 7-A and tyrosine phenol-lyase (beta-tyrosinase) from Escherichia intermedia were immobilized on Sepharose 4B by several direct coupling reactions or through pyridoxal 5'-phosphate previously bound to Sepharose. The most active preparation of immobilized tryptophanase was obtain…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic and electrochemical properties of transition metal complexes with multiple metal-to-metal bonds. IV. Octachlorodimolybdate(n-) with n = 3 and 4 and tetrabutyratodimolybdate(n+) with n = 0 and 1F. Albert Cotton and Erik PedersenCite this: Inorg. Chem. 1975, 14, 2, 39…
General method to treat the scattering of lattice waves by static strain fields in anisotropic solids was applied to the calculation of thermal conductivity of crystals containing dislocations. The scattering cross widths for edge and screw dislocations in cubic crystals with {111} <110> and {110} <110> slip systems w…
The order of the phase transition within a long polymer molecule in dilute solution brought about by the intramolecular forces is investigated within the context of a lattice model. It is found that the entropy is continuous at the transition but that the density changes discontinuously, implying that the transition h…
We have measured the polarized (I∥) and the depolarized (I⊥) scattered light intensities by fluctuations of the orientational order parameter as a function of two scattering angles over a range of temperatures close to and above the isotropic−nematic phase transition of para−methoxybenzylidine para−n−butylaniline (MBB…
Abstract The thermal conductivity of segregated distributions of poly (vinyl chloride)/nickel (PVC/Ni) and poly(vinyl chloride)/copper (PVC/Cu) was measured for volume fractions ranging from 0 to 0.15. The thermal conductivities increased from 0.15 Btu/hr ft °F for unmodified PVC to 2.79 Btu/hr ft °F for PVC/15 percen…
Sulfhydryl reagents, as well as mild hydrogen peroxide oxidation, do not inhibit the activity of yeast phosphoglycerate kinase, indicating that the single thiol group and 3 methionine residues present in the enzyme are not essential for activity. Nitration of phosphoglycerate kinase by tetranitromethane inhibits the e…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal and molecular structures of ion radical molecular complexes of cis-bis(trifluoromethylethylene-1,2-dithiolato)nickel with phenothiazine and phenoxazine. Effects of donor-acceptor separation on the molecular propertiesAnami. Singhabhandhu, P. D. Robinson, J. H. Fang,…
Abstract The deformational, swelling, and potentiometric behavior of poly(methacrylic acid) gels was measured as a function of the degree of crosslinking, ionic strength, and degree of ionization. The comparison of the stress–strain behavior with theoretical relations derived in the preceding part has shown that the r…