Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCationic Aluminum Compounds with Potential Relevance to Lewis Acid CatalysisDavid A. Atwood, Jolin A. Jegier, and Drew RutherfordCite this: J. Am. Chem. Soc. 1995, 117, 25, 6779–6780Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published…
This paper reviews our current work on the synthesis of new organic-soluble aromatic polyamides and polyimides having high glass transition temperatures above 300 °C. Our strategy to achieve this goal is to introduce a bulky pendant phenyl group along the polymer backbone and to incorporate a crank and twisted non-cop…
Abstract Syntheses of parent polyaniline and methyl, methoxy, and ethoxy ortho‐substituted polyanilines were performed using the conventional chemical methodology and monitored using the new open‐circuit‐potential ( V oc ) profile technique. The intermediate pernigraniline oxidation state was identified and isolated a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructural and Physical Properties of Delocalized Mixed-Valent [Cp*M(pentalene)M'Cp*]n+ and [Cp*M(indacene)M'Cp*]n+ (M, M' = Fe, Co, Ni; n = 0, 1, 2) ComplexesJuan M. Manriquez, Michael D. Ward, William M. Reiff, Joseph C. Calabrese, Nancy L. Jones, Patrick J. Carroll, Emili…
The commercialization of new NLO materials will depend not only on the mastery of the technical problems but also on the availability of investment capital. Here, the research issues most relevant to commercialization are viewed and the advantages and disadvantages of new systems, both inorganic and organic, for examp…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBifunctional Capping of CdS Nanoparticles and Bridging to TiO2Darren Lawless, Sudhir Kapoor, and Dan MeiselCite this: J. Phys. Chem. 1995, 99, 25, 10329–10335Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published inissue 1 June 1995https…
For the first time photo cross-linking of linearly polymerizable polymers (LPPs) is shown to induce uniaxial planar alignment in adjacent liquid crystal polymer (LCP)-layers on single substrates. Ways and novel materials allowing integration of LPP-aligning layers with optical retarders in patterned, hybrid LPP-LCP-co…
The systematic construction of graphite structures (for example see Figure and Cover picture) is within reach. These structures are formed accidentally on the surface of HOPG graphite due to the friction exerted by the tip of an atomic force microscope but could also be designed “to order”. The origin of the structure…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermoreversible Supramolecular Networks with Polymeric PropertiesC. B. St.Pourcain and A. C. GriffinCite this: Macromolecules 1995, 28, 12, 4116–4121Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published inissue 1 June 1995https://pubs.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructures of Organogels Based upon Cholesteryl 4-(2-Anthryloxy)butanoate, a Highly Efficient Luminescing Gelator: Neutron and X-ray Small-Angle Scattering InvestigationsP. Terech, I. Furman, and R. G. WeissCite this: J. Phys. Chem. 1995, 99, 23, 9558–9566Publication Date (P…
Endogenous fatty acids are synthesized in all organisms in a pathway catalyzed by the fatty acid synthase complex. In bacteria, where the fatty acids are used primarily for incorporation into components of cell membranes, fatty acid synthase is made up of several independent cytoplasmic enzymes, each catalyzing one sp…
The ion-beam-induced transformation of insulating diamond to a conducting form of carbon is explored by performing measurements of the electrical conductivity of diamond subject to ion damage. A wide range of implantation temperatures (150--690 K) with both Xe (320 keV) and C (100 keV) ions are employed. The dose depe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChiral Assembly in Amorphous ABC Triblock Copolymers. Formation of a Helical Morphology in Polystyrene-block-polybutadiene-block-poly(methyl methacrylate) Block CopolymersUdo Krappe, Reimund Stadler, and Ingrid Voigt-MartinCite this: Macromolecules 1995, 28, 13, 4558–4561Pub…
ABSTRACT The sterol compositions of 14 species of marine diatoms were determined by gas chromatography and gas chromatography‐mass spectrometry. A variety of sterol profiles were found. The sterols 24‐methylcholesta‐5,22E‐dien‐3β‐ol, cholest‐5‐en‐3β‐ol, and 24‐methylcholesta‐5,24(28)‐dien‐3β‐ol, previously described a…
A task group of the JCPDS—International Center for Diffraction Data (ICDD) was established with the charge of investigating the use of silver behenate, CH 3 (CH 2 ) 20 COO·Ag, as a possible low-angle calibration standard for powder diffraction applications. Utilizing several data collection and analysis techniques, lo…
We have measured surface-enhanced resonance Raman scattering (SERRS) spectra of rhodamine 6G (R6G) at concentrations as low as 8 × 10 −16 M in colloidal silver solution activated by NaCl ions. The spectra were measured with a fiber-optic probe using the 514.5-nm argon-ion laser line as excitation source and a charge-c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrooxidation of CO and H2/CO Mixtures on a Well-Characterized Pt3Sn Electrode SurfaceHubert A. Gasteiger, Nenad M. Markovic, and Philip N. Ross Jr.Cite this: J. Phys. Chem. 1995, 99, 22, 8945–8949Publication Date (Print):June 1, 1995Publication History Published online1…
This work reviews the electroless copper deposition process as a metallization method for integrated circuit applications. We review the solution chemistry and reaction thermodynamics as well as the deposition kinetics for deposition on flat surfaces and on patterned surfaces with minimum dimensions between 0.1 and 1.…
The effect of hydrostatic pressure on the magnetic and electronic properties has been investigated for prototypical double-exchange ferromagnets, ${\mathrm{La}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Sr}}_{\mathit{x}}$${\mathrm{MnO}}_{3}$, with varying nominal hole concentration x (0.15\ensuremath{\le}x\ensure…
Silicon nitride with a preferred orientation of large elongated grains was obtained by tape casting of raw powder slurry seeded with rodlike β‐Si 3 N 4 particles, followed by a gas pressure sintering under 1 MPa nitrogen pressure. The large elongated grains developed from seeds lay in planes parallel to the casting di…