Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReduction and Aggregation of Silver Ions at the Surface of Colloidal SilicaDarren Lawless, Sudhir Kapoor, Pierre Kennepohl, Dan Meisel, and Nick SerponeCite this: J. Phys. Chem. 1994, 98, 38, 9619–9625Publication Date (Print):September 1, 1994Publication History Published on…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyiron Oxo Chemistry at the Molecular/Solid-State Boundary: Synthesis, Structure, and Magnetic and Moessbauer Properties of [Fe16MO10(OH)10(O2CPh)20] Complexes, M = Mn, Fe, or CoWolfgang Micklitz, Vickie McKee, R. Lynn Rardin, Laura E. Pence, Georgia C. Papaefthymiou, Simo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLiquid Crystal Transition and Crystallization Kinetics in Poly(ester imide)sRicardo Pardey, Scott S. Wu, Jianhua Chen, Frank W. Harris, Stephen Z. D. Cheng, Andrew Keller, Jerry Aducci, John V. Facinelli, and Robert W. LenzCite this: Macromolecules 1994, 27, 20, 5794–5802Pub…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSonochemical Destruction of CFC 11 and CFC 113 in Dilute Aqueous SolutionH. Michael. Cheung and Shreekumar. KurupCite this: Environ. Sci. Technol. 1994, 28, 9, 1619–1622Publication Date (Print):September 1, 1994Publication History Published online1 May 2002Published inissue…
The anisotropic thermal diffusivity α of the highly c -axis-oriented Y–Ba–Cu–O bulk superconducting crystals has been measured quasi-simultaneously with the thermal conductivity κ. The estimated values of the specific heat C by use of α and κ values parallel and perpendicular to the c -direction agreed with each other…
Amorphous fluoropolymers (AF) have recently been developed to provide several favorable characteristics not present in the more crystalline materials. However, these polymers have not been fully characterized and reports of surface modification are not extensive. This work presents results of surface analysis and modi…
Thin and Sb‐doped films have been prepared from aqueous colloidal solutions containing and precursors by the dip‐coating technique. The films are characterized as small grains (40 to 70 Å) and exhibit the ability to uptake reversibly Li + and H + ions from solutions of (0.1 M ) in acetonitrile (AN) or water, (0.1 M )…
In the present study the mechanisms and effectiveness of various pretreatments for fluoropolymers were studied. The pretreatments were “Tetra-Etch,” various plasmas, flame and potassium hydroxide. “Tetra-Etch” was found to be much more reactive than potassium hydroxide (KOH) towards fluoropolymers. The plasma treatmen…
Abstract The yielding behavior of isotactic polypropylene (iPP) sheets prepared by hot pressing was studied by tensile testing. The corresponding microstructural changes in the specimens after testing were investigated by image analysis, optical microscopy (OM), scanning electron microscopy (SEM), and differential sca…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemistry of Squaraine Dyes. 8. Photophysical Properties of Crown Ether Squaraine Fluoroionophores and Their Metal Ion ComplexesSuresh Das, K. George Thomas, K. J. Thomas, Prashant V. Kamat, and M. V. GeorgeCite this: J. Phys. Chem. 1994, 98, 37, 9291–9296Publication Da…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNon-First-Order Kinetics of the High Spin-Low Spin Relaxation in [Fe(bpp)2](BF4)2 after LIESST and Thermal Spin TrappingT. Buchen, P. Guetlich, and H. A. GoodwinCite this: Inorg. Chem. 1994, 33, 20, 4573–4576Publication Date (Print):September 1, 1994Publication History Publi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGrowth of lamellar Hofmann clathrate films by sequential ligand exchange reactions: assembling a coordination solid one layer at a timeChristine M. Bell, Mark F. Arendt, Lorena Gomez, Russell H. Schmehl, and Thomas E. MalloukCite this: J. Am. Chem. Soc. 1994, 116, 18, 8374–8…
The probabilities for up-conversion involving two nearest-neighbor ${\mathrm{Ho}}^{3+}$${(}^{5}$${\mathit{I}}_{7}$) ions and ${\mathrm{Tm}}^{3+}$${(}^{3}$${\mathit{F}}_{4}$) ions in ${\mathrm{Y}}_{3}$${\mathrm{Al}}_{5}$${\mathrm{O}}_{12}$ have been determined. The final states are $^{5}$${\mathit{I}}_{5}$ and $^{5}$${…
The continuous precipitation of calcium carbonate is studied here with on-line particle size distribution evaluation and in-situ video visualization. Morphological characterizations of collected samples using differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM), and cryo…
Latex polyballs are suspended in an isotropic micellar solution which exhibits a nematic phase at low temperatures. At the transition, we observe that the particles are either retained or expelled from the structured phase depending on their size. A mean field theory with two coupled order parameters is proposed to ac…
In order to gain an understanding of highly reliable electrical characteristics for the Ho-doped multilayer ceramic capacitors with Ni electrodes, dielectric properties of various rare-earth-oxide-doped BaTiO 3 ceramics were studied. The smaller ionic radius rare-earth-oxide (Dy, Ho, Er)-doped samples showed lower res…
The change of the \ensuremath{\alpha} relaxation process occurring during isothermal crystallization of a glassy polymer, poly(aryl ether ketone ketone), has been followed in real time through measurement of the dielectric complex permittivity. The dielectric strength has been correlated with the degree of crystallini…
We discuss the dynamic properties of a semidilute grafted polymer layer exposed to pure solvent. When the grafting energy of the head groups of the chains is finite, the chains desorb and are expelled from the layer. We combine Monte Carlo simulations using the bond fluctuation model to self-consistent mean field calc…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReal-Time SAXS Observations of Lamella-Forming Block Copolymers under Large Oscillatory Shear DeformationShigeru Okamoto, Kenji Saijo, and Takeji HashimotoCite this: Macromolecules 1994, 27, 20, 5547–5555Publication Date (Print):September 1, 1994Publication History Published…
The reduced layered niobate Rb2LaNb2O7 was synthesized via the reaction of RbLaNb2O7 with rubidium vapor at temperatures between 200 and 250 degrees C. The structures of both materials have been determined by Rietveld analysis of time-of-flight powder neutron diffraction data. The cream-colored host compound RbLaNb2O7…