Materials Literature
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Polyurethane (PU) sheets and foams having plant components in their network were prepared by using the following procedure. Polyethylene glycol (PEG) was mixed with one of the following; molasses, lignin, woodmeal, or coffee grounds. The mixture obtained was reacted with diphenylmethane diisocyanate (MDI) at room temp…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTopological and Nontopological Rearrangement in Crystal Lattice of Cholic Acid Inclusion Complex Induced by Guest ExchangeMotonari Shibakami, Masanori Tamura, and Akira SekiyaCite this: J. Am. Chem. Soc. 1995, 117, 16, 4499–4505Publication Date (Print):April 1, 1995Publicati…
The phase diagram of the sodium dodecylsulphate/decanol/water system is studied by2H NMR spectroscopy in the range between the calamitic nematic (N+ C) and discotic nematic (N− D) phases. In this narrow range a nematic biaxial phase (NBX) is observed. The phase transitions between the nematic phases are all of first o…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLuminescence Quenching of Copper(II) Porphyrins with Lewis BasesFang Liu, Kurstan L. Cunningham, Wendy Uphues, Gerald W. Fink, Johnathan Schmolt, and David R. McMillinCite this: Inorg. Chem. 1995, 34, 8, 2015–2018Publication Date (Print):April 1, 1995Publication History Publ…
Abstract The entitled compound was synthesized by using a step-growth polymerization technique and its molecular structure was determined by X-ray crystallography. This dendrimer showed a distinct UV absorption maximum at 264 nm and exhibited two very feeble fluorescence maxima at 320 nm and 400 nm.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTControlled Synthesis of Bicyclic "Eight-Shaped" Poly(chloroethyl vinyl ether)sMichel Schappacher and Alain DeffieuxCite this: Macromolecules 1995, 28, 8, 2629–2636Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 April 19…
The formation of ${\mathrm{O}}_{2}$ by radiative association and by inverse predissociation of ground-state oxygen atoms is studied using quantum-mechanical methods. Cross sections, emission spectra, and rate coefficients are presented and compared with prior experimental and theoretical results. At temperatures below…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal Structure and Magnetic Properties of a 2D Sheetlike .mu.-Cyanido- and .mu.-Oxamidato-Bridged Fe(III)-Cu(II) Bimetallic ComplexZhong Ning Chen, Jing Ling Wang, Jun Qiu, Fang Ming Miao, and Wen Xia TangCite this: Inorg. Chem. 1995, 34, 8, 2255–2257Publication Date (Pri…
The properties of a quasi-one-dimensional (quasi-1D) superconductor with an open Fermi surface are expected to be unusual in a magnetic field. On the one hand, the quasi-1D structure of the Fermi surface strongly favors the formation of a nonuniform state [Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) state] in the presence…
Changes in the surface structure of the single-crystal Si/SiO 2 /Si system during vacuum heating (950-1200° C) have been investigated using atomic force microscopy and scanning Auger electron microscopy. When the top Si layer is sufficiently thin, e.g. , below ∼30 nm for heating at 1100° C, holes are formed due to Si…
We have studied the temporal variation of the visible photoluminescence from rapid thermally oxidized porous silicon prepared from n+ substrates. In contrast to the red (slow band) emission, which is observable immediately after high-temperature oxidation, the blue (fast band) emission is shown to become prevalent onl…
The effect of slurry flocculation on the characteristics of silicon nitride granules prepared by the spray drying process is investigated. The flocculation state of an aqueous silicon nitride slurry is controlled by adding nitric acid and evaluated as a function of pH. Dense and hard silicon nitride granules result fr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactivity of a Tetrakis(pyrazolyl)borate Oxorhenium ComplexAntonio Paulo, Angela Domingos, Joaquim Marcalo, Antonio Pires de Matos, and Isabel SantosCite this: Inorg. Chem. 1995, 34, 8, 2113–2120Publication Date (Print):April 1, 1995Publication History Published online1 May…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Structure of Sodium Tellurite Glasses: Sodium Cation Environments from Sodium-23 NMRS. L. Tagg, R. E. Youngman, and J. W. ZwanzigerCite this: J. Phys. Chem. 1995, 99, 14, 5111–5116Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Publish…
Abstract Rice hull silica and a rice hull carbon ash were evaluated as adsorbents for the soy oil bleaching process under commercial temperature and pressure conditions. Their performance in adsorbing pigment, phospholipid, free fatty acids, and peroxides was compared with that of a commercial bleaching clay and silic…
Abstract Morphology and oxygen permeability studies were carried out for blends of poly(ethylene terephthalate), PET, and poly(ethylene 2,6‐naphthalate), PEN, with poly(ethylene‐co‐vinyl alcohol), EVOH. PET/EVOH blends are seen as a possible substitute for poly(vinylidene chloride)‐coated PET packaging films. The effe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRelaxation Behavior of Polyimides Based on 2,2'-Disubstituted BenzidinesJohn C. Coburn, Paul D. Soper, and Brian C. AumanCite this: Macromolecules 1995, 28, 9, 3253–3260Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 Ap…
A novel poly-beta-hydroxybutyrate (PHB) production system in which the expression and gene dosage of the Alcaligenes eutrophus pha biosynthetic operon were effectively regulated by cultivation temperature was constructed in Escherichia coli. The pha operon was fused to the negatively regulated tac promoter and cloned…
Other| April 01, 1995 Viscosity regimes of homogeneous silicate melts Yan Bottinga; Yan Bottinga Institut de Physique du Globe, Department des Geomateriaux, Paris, France Search for other works by this author on: GSW Google Scholar Pascal Richet; Pascal Richet Search for other works by this author on: GSW Google Schol…
Abstract The voltammetric behavior in alkaline solution of a nickel‐based chemically modified electrode (Ni‐CME) prepared by oxidative electropolymerization of a nickel–tetraazaannulene complex (Ni II L) was investigated. After electrochemical deposition of the (Ni II L) n film in dichloromethane on a conducting subst…