Materials Literature
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The triple point smectic-C--smectic-F--hexatic-B (C-F-B) has been found in binary mixtures of THl-n (thienyl-enaminoketone derivatives) compounds with different length of molecular terminal chains n. Differential scanning calorimetry (DSC), x-ray scattering, and optical studies show that this point is a multicritical…
Gallium is a metal that literally melts in your hand. It has low toxicity, near-zero vapor pressure, and a viscosity similar to water. Despite possessing a surface tension larger than any other liquid (near room temperature), gallium can form nonspherical ...Read More
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRaman and Infrared Study of the Polymer Electrolytes Formed by Poly(propylene oxide) with Sn(CF3SO3)2 and Pb(CF3SO3)2Pehr-Aake Bergstroem and Roger FrechCite this: J. Phys. Chem. 1995, 99, 33, 12603–12611Publication Date (Print):August 1, 1995Publication History Published on…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLattice oxygen mobility and structural stability of Ni and Cu octahedral molecular sieves having the cryptomelane structureYuan-Gen Yin, Wen-Qing Xu, Steven L. Suib, and C. L. O'YoungCite this: Inorg. Chem. 1995, 34, 16, 4187–4193Publication Date (Print):August 1, 1995Public…
Abstract In general, segmented polyurethane elastomers are prepared by reacting an isocyanate‐capped polyol prepolymer with a short‐chain diol chain extender, yielding an elastomer with hard segments of uniform size. However, the hard segment size will not be uniform if the polyurethane polymer is prepared by forming…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidative Degradation of Poly(3-octylthiophene)Nils Ljungqvist and Thomas HjertbergCite this: Macromolecules 1995, 28, 18, 5993–5999Publication Date (Print):August 1, 1995Publication History Published online1 May 2002Published inissue 1 August 1995https://doi.org/10.1021/ma0…
The surface of epi layer p ‐ GaInP 2 electrodes was treated using 8‐quinolinol, cupferron, and ferrocyanide, producing a modified surface directed at varying the Helmholtz layer charge. Mott‐Schottky and photocurrent‐voltage measurements were carried out to determine if there was any shift in the flatband potential or…
Chromium (III) oxide (Cr 2 O 3 ) crystallizes at low temperatures from an amorphous material prepared by adding hydrazine monohydrate to an aqueous solution of Cr(NO 3 ) 3 ‐9H 2 O. Individual particles of Cr 2 O 3 tend toward a hexagonal morphology above 800°C. Well‐densified Cr 2 O 3 pellets (98.8% of theoretical den…
Abstract The results of thermal and oxidative stability studies are reported for one perfluorocyclo‐butane aromatic ether thermoset polymer. The polymer was prepared from 1,1,1‐tris (4‐trifluorovinyloxyphenyl)ethane by the thermal cyclodimerization of the trifluorovinyl either functionality, resulting in a network pol…
Flexoelectricity of pure Azpac (an HOAB-palladium complex) was studied using planar nematic layers under an in-plane electric field. Longitudinal domains were observed with a period inversely proportional to the applied d.c. electric field. These domains were considered as a first experiment manifestation of the theor…
Abstract Surface energy of EPDM, silicone rubber, and their 50 : 50 (by weight) blend during aging was determined by contact angle measurement using water and formamide as the probe liquids. The surface energy increases initially with aging time. The results are explained on the basis of the polar component of the sur…
Other| August 01, 1995 A 29Si MAS NMR and IR spectroscopic investigation of synthetic pyrope-grossular garnet solid solutions Anne Bosenick; Anne Bosenick Christian-Albrechts-Universitaet zu Kiel, Mineralogisch-Petrographisches Institut, Kiel, Federal Republic of Germany Search for other works by this author on: GSW G…
A method for the docking of ligands to crystalline surfaces using molecular mechanics was developed and applied to study the molecular features of the adsorption of Congo Red to cellulose crystals. The docking procedure was based on a grid search exploring the surface repeat unit of the cellulose crystals using severa…
Composite electrochemical cells incorporating press‐contact pellets of yttria‐stabilized zirconia (YSZ), electronically blocking electrodes, and YBa 2 Cu 3 O 7 − x ( YBCO ) were investigated by ac impedance spectroscopy. An additional element, not attributable to either of the individual components, was observed in th…
DSC (differential scanning calorimeter) measurements were performed to investigate the tetragonal‐monoclinic ( t‐m ) transition enthalpy of the compositionally homogeneous ZrO 2 ‐ X mol% CeO 2 solid solution of X = 0, 4, 8, and 12. The transition enthalpy decreases linearly with an increase of CeO 2 content. The m → t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanically Activated MoO3. 2. Characterization of Defect StructuresG. Mestl, N. F. D. Verbruggen, and H. KnoezingerCite this: Langmuir 1995, 11, 8, 3035–3041Publication Date (Print):August 1, 1995Publication History Published online1 May 2002Published inissue 1 August 1995…
The synthesis of (n-Bu4N)4[PMW11O40] (M = V, Nb, Ta) in non-aqueous solvents is described using the lacunary compound (n-Bu4N)4H3[PW11O39] and commercially available VOCl3, NbCl5 and TaCl5. The yield and purity of the product vary depending on the solvent and the presence of base. 183W NMR spectroscopy of the title co…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermodynamic Parameters for Cobalt-Quinone Electron Transfer and Spin Transition Steps of the CoIII(bpy)(3,5-DBSQ)(3,5-DBCat)/CoII(bpy)(3,5-DBSQ)2 Valence Tautomeric EquilibriumCortlandt G. Pierpont and Ok-Sang JungCite this: Inorg. Chem. 1995, 34, 16, 4281–4283Publication…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe [Co4O4]4+ Cubane as a Quadruply-Bridging Unit: The Mixed-Valence Cluster [Co8O4(O2CPh)12(solv)4] (solv = DMF, MeCN, H2O)Katerina Dimitrou, Jui-Sui Sun, Kirsten Folting, and George ChristouCite this: Inorg. Chem. 1995, 34, 16, 4160–4166Publication Date (Print):August 1, 1…
Electromagnetic induction is considered as a means of altering convection during the solidification of a Pb–19 wt pct Sn alloy. Application of a time-varying magnetic field induces Lorentz forces, which augment thermal buoyancy forces in the melt and oppose solutal buoyancy forces in the mushy zone. A continuum model…