Materials Literature
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Nonlinear optical (NLO) properties of CsLiB 6 O 10 (CLBO) have been investigated. Frequency quadrupling of the 1.064 µ m Nd:YAG laser output for type-I phase matching was observed by using CLBO. The walk-off angle and the effective NLO coefficient deff were estimated to be 1.83° and 1.01 pm/V for fourth harmonics gene…
The effect of silanation on the dispersion of quartz and zirconia-silica fillers by monomers used to formulate composites was studied. Sixteen silane coupling agents and three methods were used, and the amounts of the monomers needed to reach wet and flow point values were determined. The silanes were selected to have…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDensity Functional Analysis of Phenomenological Theories of Gas-Liquid NucleationV. Talanquer and D. W. OxtobyCite this: J. Phys. Chem. 1995, 99, 9, 2865–2874Publication Date (Print):March 1, 1995Publication History Published online1 May 2002Published inissue 1 March 1995htt…
Abstract An efficient synthesis of phthalocyanines prepared from ortho ‐substituted phthalonitriles is described. The precursor to these phthalocyanines, 3‐nitrophthalonitrile, is a key reagent for syntheses of phthalonitriles substituted at the 3‐position by means of nucleophilic aromatic substitutions. An example of…
A practical approach for magnetic core-loss characterization up to a few megahertz is presented. An error analysis is for the first time performed, revealing that corrections are needed to compensate for errors introduced by the extra phase shift inherent in a measurement setup, and by shunt parasitic capacitance asso…
Byssal threads of the common mussel Mytilus edulis contain collagenous molecules from which two pepsin-resistant fragments have been isolated and characterized. These show a complementary distribution along the length of the thread, such that one predominates distally (Col-D) and the other proximally (Col-P). Both fra…
Abstract Diatoms possess a number of attributes which contribute to their suitability as biological indicators. They are highly sensitive to water chemistry changes, abundant in aquatic environments, largely cosmopolitan in distribution, less habitat dependent than macroinverte‐brates and have a well‐studied taxonomy…
Abstract Complexes between organic cations and clays provide a research tool and have ecological applications. The purpose of this study was to elucidate details of interactions between monovalent organic cationic dyes and montmorillonite. Interactions were studied by x‐ray diffraction and ultraviolet and infrared (IR…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Characterization of Degradable Poly(anhydride-co-imides)Kathryn E. Uhrich, Anita Gupta, Tommy T. Thomas, Cato T. Laurencin, and Robert LangerCite this: Macromolecules 1995, 28, 7, 2184–2193Publication Date (Print):March 1, 1995Publication History Published onli…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCross-Linked Enzyme Crystals (CLECs) of Thermolysin in the Synthesis of PeptidesRose A. Persichetti, Nancy L. S. Clair, James P. Griffith, Manuel A. Navia, and Alexey L. MargolinCite this: J. Am. Chem. Soc. 1995, 117, 10, 2732–2737Publication Date (Print):March 1, 1995Public…
The present investigation was undertaken to analyse the morphology and chemical composition of secondary austenite, which may be formed in duplex stainless steel welds. The techniques used were scanning electron microscopy, analytical transmission electron microscopy, secondary ion mass spectroscopy, and thermodynamic…
The crack‐healing behavior of A1 2 O 3 and Al 2 O 3 ‐SiC nanocomposite was studied using Vickers indentations to generate precracks. After annealing in argon for 2 h at 1300°C, radial cracks in the nanocomposite healed: The cracks closed and there was a small degree of rebonding in the vicinity of the crack tip. In co…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of Polymer Matrixes on the Time-Resolved Luminescence of a Ruthenium Complex Quenched by OxygenSonja Draxler, Max E. Lippitsch, Ingo Klimant, Heinz Kraus, and Otto S. WolfbeisCite this: J. Phys. Chem. 1995, 99, 10, 3162–3167Publication Date (Print):March 1, 1995Publi…
In an attempt to elucidate the processes involved in the formation of indentation impressions, Vickers hardness measurements have been made on soda‐lime silica glass, fused silica, and crystalline quartz indented at room temperature and 77 K. The hardness of all three materials increases by a factor of ∼2.5 on cooling…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA Reevaluation of Bicontinuous Cubic Phases in Starblock CopolymersDamian A. Hajduk, Paul E. Harper, Sol M. Gruner, Christian C. Honeker, Edwin L. Thomas, and Lewis J. FettersCite this: Macromolecules 1995, 28, 7, 2570–2573Publication Date (Print):March 1, 1995Publication Hi…
Abstract The first steps of H 2 S adsorption have been studied on polycrystalline copper samples, which are more relevant to industrial copper samples than to single‐crystal surfaces. The tools for characterization are ultrahigh vacuum spectroscopic methods, such as x‐ray photoelectron and ion scattering spectroscopie…
Structural aspects of PAN-CSA, POT-CSA and PAN-MSA prepared with m-cresol are compared. In relationship with the electronic properties measured on the same materials we emphasize that the geometry of the polymer chain packing, the disorder and the interchain separation have a key influence on the charge conduction pro…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of Solvent on the Radiative Decay of Singlet Molecular Oxygen (a1.DELTA.g)Rodger D. Scurlock, Santiago Nonell, Silvia E. Braslavsky, and Peter R. OgilbyCite this: J. Phys. Chem. 1995, 99, 11, 3521–3526Publication Date (Print):March 1, 1995Publication History Published…
Block copolymers of lactide and poly(ethy1ene glycol) with various mclar ratios were synthesized.Tin(I1) bis(2-ethylhexanoate) has been used as a catalyst.Kinetic measurement and mechanistic studies suggest that the reactivity of the initiator, a hydroxyl group bearing reagent, is an important parameter on the polymer…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEPR Spin-Trapping Study of the Sonolysis of H2O/D2O Mixtures: Probing the Temperatures of Cavitation RegionsVladimir Misik, Norio Miyoshi, and Peter RieszCite this: J. Phys. Chem. 1995, 99, 11, 3605–3611Publication Date (Print):March 1, 1995Publication History Published onli…