Materials Literature
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The oxidation of zinc in air at 294 K has been studied for exposure times from 1 min to 150 h. The fraction of zinc in the Zn+2 valence state has been determined by high resolution Auger electron spectroscopy. Surface oxide thickness was measured by using AES with argon ion sputter etching. The adsorbed oxygen was sho…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInvestigation by small-angle neutron scattering of the chain conformation in equilibrium-swollen poly(dimethylsiloxane) networksMichel Beltzung, Jean Herz, and Claude PicotCite this: Macromolecules 1983, 16, 4, 580–584Publication Date (Print):April 1, 1983Publication History…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDifferential scanning calorimetry characterization of polypropylene. Dependence of Tg on polymer tacticity and molecular weightDavid R. Burfield and Yoshiharu DoiCite this: Macromolecules 1983, 16, 4, 702–704Publication Date (Print):April 1, 1983Publication History Published…
Oxygen does not quench the luminescence of either free Tb or of Tb bound to dipicolinate. However, sensitized Tb luminescence in complexes of that ion with elastase, thermolysin, and alpha-amylase is quenched by oxygen at rates that far exceed that with which the intrinsic fluorescence of the proteins is quenched. We…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicrowave structure measurements on the furan-argon complexStephen G. KukolichCite this: J. Am. Chem. Soc. 1983, 105, 8, 2207–2210Publication Date (Print):April 1, 1983Publication History Published online1 May 2002Published inissue 1 April 1983https://pubs.acs.org/doi/10.102…
The lattice-dynamical properties of tetragonal (black) SnO (with space-group symmetry $\frac{P4}{\mathrm{nmm}}$) have been examined over the temperature range $78\ensuremath{\le}T\ensuremath{\le}300$ K by variable-temperature $^{119}\mathrm{Sn}$ M\"ossbauer-effect measurements. The lattice temperature calculated from…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemical characterization of p-type semiconducting tungsten disulfide photocathodes: efficient photoreduction processes at semiconductor/liquid electrolyte interfacesJoseph A. Baglio, Gary S. Calabrese, D. Jed Harrison, Emil Kamieniecki, Antonio J. Ricco, Mark S. Wrig…
The Fourier and variance methods are used to analyse the breadths of X-ray diffraction peaks from ZnO powder obtained from the thermal decomposition of Zn 3 (OH) 4 (NO 3 ) 2 . The shape, size, distribution of size and orientation of the crystallites are determined. It is found that the form is markedly anisotropic and…
The two $4f$-derived photoemission features recently observed for Ce pnictides are identified with hybridized $4f$-hole and ligand-hole final states. Simple expressions obtained for a $\mathrm{Ce}{X}_{6}$ cluster explain the change in the relative intensity of the two $4f$ features without energy shifts. Analogous exp…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigh-resolution carbon-13 CP/MAS NMR spectra of solid cellulose oligomers and the structure of cellulose IIR. L. Dudley, C. A. Fyfe, P. J. Stephenson, Y. Deslandes, G. K. Hamer, and R. H. MarchessaultCite this: J. Am. Chem. Soc. 1983, 105, 8, 2469–2472Publication Date (Print…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidative electropolymerization of polypyridyl complexes of rutheniumCharles D. Ellis, Lawrence D. Margerum, Royce W. Murray, and Thomas J. MeyerCite this: Inorg. Chem. 1983, 22, 9, 1283–1291Publication Date (Print):April 1, 1983Publication History Published online1 May 2002…
Methods of PbO atmosphere control during the sintering of PZT ceramics are briefly reviewed. The problem of atmosphere control of PZT compositions containing a PbO excess (PbO/(Zr,Ti)O 2 >1) is discussed. Weight‐loss experiments were performed to compare with behavior predicted by reference to the PbO‐rich part of…
Rigorous coupled-wave theory of diffraction by dielectric gratings is extended to cover E-mode polarization and losses. Unlike in the H-mode-polarization case, it is shown that, in the E-mode case, direct coupling exists between all diffracted orders rather than just between adjacent orders.
The electrochemical behavior of a carbon steel in 3% NaCl solution has been investigated using a rotating disk electrode. Both steady‐state (diffusional current vs. the disk angular velocity plots) and transient (frequency analysis of the electrohydrodynamical impedance) measurements which specifically sample mass tra…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTActivation and transfer of nitrogen from a nitridomanganese(V) porphyrin complex. Aza analog of epoxidationJohn T. Groves and Tadashi TakahashiCite this: J. Am. Chem. Soc. 1983, 105, 7, 2073–2074Publication Date (Print):April 1, 1983Publication History Published online1 May…
Energy level data are given for the atom and all positive ions of silicon (Z=14). These data have been critically compiled, mainly from published material on measurements and analyses of the optical spectra. We have derived or recalculated the levels for a number of the ions. In addition to the level value in cm−1 and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTime-resolved light scattering studies on kinetics of phase separation and phase dissolution of polymer blends. 1. Kinetics of phase separation of a binary mixture of polystyrene and poly(vinyl methyl ether)Takeji Hashimoto, Jiro Kumaki, and Hiromichi KawaiCite this: Macromo…
Book Review| April 01 1983 Preparation and Analysis of Protein Crystals Preparation and Analysis of Protein Crystals. ALEXANDER McPHERSON. John Wiley/InterscienceChichester 1982 pp. 371£39.00 MARGARET ADAMS MARGARET ADAMS Search for other works by this author on: This Site PubMed Google Scholar Biochem Soc Trans (1983…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVapor pressure of iron(III) chlorideDouglas S. Rustad and Norman W. GregoryCite this: J. Chem. Eng. Data 1983, 28, 2, 151–155Publication Date (Print):April 1, 1983Publication History Published online1 May 2002Published inissue 1 April 1983https://pubs.acs.org/doi/10.1021/je0…
Abstract A critical review of the specification of orientation and its development in polymer‐processing operations is presented. Orientation may in general be specified by orientation distribution functions, but is most conveniently expressed in terms of orientation factors which are second moments of the distributio…