Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCalcite growth inhibition by ironJoseph L. Katz, Michael R. Reick, Ruth E. Herzog, and Katrin I. ParsieglaCite this: Langmuir 1993, 9, 5, 1423–1430Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Published inissue 1 May 1993https://pubs.acs.o…
Electrochemical impedance diagrams have been measured under controlled mass‐transport conditions for the transpassive anodic dissolution of , a stainless‐steel type alloy, in concentrated phosphoric‐sulfuric acid electrolytes under both polishing and nonpolishing conditions. The impedance diagrams consist of four part…
Following the ideas of Zachariasen and of Cooper, it is argued that the glass‐forming ability of a system can be rationalized in terms of the degrees of freedom available to form an infinitely large topologically disordered network composed of rigid structural units connected at vertices, edges, or faces. Expressions…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLuminescence rigidochromism of fac-tricarbonylchloro(4,7-diphenyl-1,10-phenanthroline)rhenium as a spectroscopic probe in monitoring polymerization of photosensitive thin filmsThomas G. Kotch, Alistair J. Lees, Stephen J. Fuerniss, Kostas I. Papathomas, and Randy W. SnyderCi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConductivity relaxation and chain motions in conjugated conducting polymers: neutral poly(3-alkylthiophenes)Show An Chen and Chien Shiun LiaoCite this: Macromolecules 1993, 26, 11, 2810–2816Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Pub…
Abstract The binding energy and elastic constants of Li 2 S and Na 2 S are investigated at an initio all electron Hartree‐Fock level. The comparison between calculated and experimental value leads to satisfactory agreement for Li 2 S and a substantial difference in the Na 2 S case. The comparative evolution of the ela…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSingle-chain polystyrene glassesRenyuan Qian, Liheng Wu, Deyan Shen, Donald H. Napper, Richard A. Mann, and David F. SangsterCite this: Macromolecules 1993, 26, 11, 2950–2953Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Published inissue 1…
We study the coarsening dynamics of defects in the uniaxial nematic liquid crystal 4-cyano-4'-n-pentylbiphenyl, subjected to a rapid pressure jump from the isotropic to the nematic phase. The defect tangle formed at the phase transition is dominated by type-1/2 strings (disclination lines), but also contains type-1 st…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNickel K-edge x-ray absorption fine structure of lithium nickel oxidesIngrid J. Pickering, Graham N. George, Joseph T. Lewandowski, and Allan J. JacobsonCite this: J. Am. Chem. Soc. 1993, 115, 10, 4137–4144Publication Date (Print):May 1, 1993Publication History Published onl…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSol-gel synthesis of ternary metal oxides. 1. Synthesis and characterization of MAl2O4 (M = Mg, Ni, Co, Cu, Fe, Zn, Mn, Cd, Ca, Hg, Sr, and Ba) and lead aluminum oxide (Pb2Al2O5)Lynn K. Kurihara and Steven L. SuibCite this: Chem. Mater. 1993, 5, 5, 609–613Publication Date (P…
Results from Brownian dynamics simulations of hard sphere diffusion in polymer networks of wormlike chains are presented. The influence of the size of the diffusing particles, the polymer concentration, the polymer radius, and the persistence length of the chains were investigated. The diffusion coefficients obtained…
Abstract A method of identifying and quantifying elastomers and processing oil in tire rubber, called DTG curve simulation method, is proposed. This method is based on DTG (derivative thermogravimetry) analysis of the straight elastomers NR, BR and SBR, which produces a series of decomposition rate data and pairs of k…
Calculations of Cu 2p photoelectron spectra for a ${\mathrm{Cu}}_{3}$${\mathrm{O}}_{10}$ cluster with a reduced basis set show that the introduction of more Cu sites leads to a revised interpretation of the Cu 2p spectrum. Besides the usual peaks of mainly 3${\mathit{d}}^{9}$ and 3${\mathit{d}}^{10}$L character anothe…
Abstract Incorporation of free acids or salts of antimycotic food additives, including propionic acid, benzoic acid or sorbic acid, into low‐density polyethylene (LDPE) films failed to inhibit mould growth when the films contacted inoculated media. However, LDPE films into which benzoic anhydride was incorporated exhi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTetrahedral-atom 3-ring groupings in 1-dimensional inorganic chains: beryllium arsenate hydroxide hydrate (Be2AsO4OH.cntdot.4H2O) and sodium zinc hydroxide phosphate hydrate (Na2ZnPO4OH.cntdot.7H2O)William T. A. Harrison, Tina M. Nenoff, Thurman E. Gier, and Galen D. StuckyC…
Recently a quantum size effect was proposed to be responsible for the blue shift of optical absorption edge and photoluminescence peak wavelength as well as for the porous silicon (PS) formation itself. In the debate about the mechanism of light emission from PS a correlation between particle size and luminescence pea…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRecognition of .alpha.-amino acid esters by zinc porphyrin derivatives via coordination and hydrogen bonding interactions. Evidence for two-point fixation from thermodynamic and induced circular dichroism spectroscopic studiesTadashi Mizutani, Tadashi Ema, Takashi Yoshida, Y…
Laser induced large negative reorientational nonlinearities are observed in dye-doped liquid crystal. The effect is attributed to intermolecular torque exerted by the photoexcited dye molecules, which causes the liquid crystal axis to realign in a direction orthogonal to the optical electric field. Optical nonlinearit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFracture mechanisms of polymer interfaces reinforced with block copolymers: transition from chain pullout to crazingJunichiro Washiyama, Edward J. Kramer, and Chung Yuen HuiCite this: Macromolecules 1993, 26, 11, 2928–2934Publication Date (Print):May 1, 1993Publication Histo…
Six alkali metal tin polysulfides and one monosulfide, K2Sn2S8 (I), α-Rb2Sn2S8 (II), β-Rb2Sn2S8 (III), K2Sn2S5 (IV), Cs2Sn2S6 (V), and Cs2SnS14 (VI), respectively, were synthesized by a molten salt technique. I and IV were made by heating mixtures of Sn/K2S/S (molar ratio 1/2/8) at 275 and 320°C, respectively, for 4-6…