Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCryo-TEM and SANS Microstructural Study of Pluronic Polymer SolutionsKell Mortensen and Yeshayahu TalmonCite this: Macromolecules 1995, 28, 26, 8829–8834Publication Date (Print):December 1, 1995Publication History Published online1 May 2002Published inissue 1 December 1995ht…
The absorption and emission properties of numerous glasses doped with ${\mathrm{Yb}}^{3+}$ ions have been investigated. The emission cross sections have been evaluated using the measured absorption spectra and principle of reciprocity, and again using the Fuchtbauer-Ladenburg formula. Agreement between the two methods…
Abstract Mackinawite, tetragonal FeS, has been synthesised by reacting iron with Na 2 S solutions. A Rietveld structure refinement of X-ray powder diffraction data, recorded using X-rays monochromated from synchrotron radiation with a wavelength of 0.6023 Å, has been performed. The structure has been refined in the te…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolarized Laser Induced Holographic Surface Relief Gratings on Polymer FilmsD. Y. Kim, Lian Li, X. L. Jiang, V. Shivshankar, J. Kumar, and S. K. TripathyCite this: Macromolecules 1995, 28, 26, 8835–8839Publication Date (Print):December 1, 1995Publication History Published on…
The properties of an oxyfluoride glass ceramic that possesses high transparency after ceramming are described. Approximately 25 vol % of this material is comprised of cubic, fluoride nanocrystals and the remainder is a predominantly oxide glass. When doped with Pr+3, the fluorescence lifetime at 1300 nm is longer than…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnaerobic Corrosion of Granular Iron: Measurement and Interpretation of Hydrogen Evolution RatesEric J. ReardonCite this: Environ. Sci. Technol. 1995, 29, 12, 2936–2945Publication Date (Print):December 1, 1995Publication History Published online1 May 2002Published inissue 1…
ABSTRACT Two species of diatoms were genetically transformed by introducing plasmid vectors containing the Escherichia coli neomycin phosphotransferase II (npt II ) gene. Expression of the bacterial npt II gene in the diatoms was achieved using the putative promoter and terminator sequences from the acetyl‐CoA carboxy…
Other| December 01, 1995 An experimental study of element partitioning among biotite, muscovite, and coexisting peraluminous silicic melt at 200 MPa (H2O) Jonathan Icenhower; Jonathan Icenhower University of Oklahoma, School of Geology and Geophysics, Norman, OK, United States Search for other works by this author on:…
Other| December 01, 1995 A simple model for sector zoning in slowly grown crystals: Implications for growth rate and lattice diffusion, with emphasis on accessory minerals in crustal rocks E. Bruce Watson; E. Bruce Watson Rensselaer Polytechnic Institute, Department of Earth and Environmental Sciences, Troy, NY, Unite…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLuminescence Studies of Gold(I) Thiolate ComplexesJennifer M. Forward, David Bohmann, John P. Fackler Jr., and Richard J. StaplesCite this: Inorg. Chem. 1995, 34, 25, 6330–6336Publication Date (Print):December 1, 1995Publication History Published online1 May 2002Published in…
Noble metal nanoparticles have been used for more than 2000 years. Applications currently under discussion include solar cell technology, catalysis, and nonlinear optics, where the enormous interfacial surface area of the colloidally dispersed metals and their unique electronic properties resulting from size quantizat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochromism of Dithienylethenes with Electron-Donating SubstituentsMasahiro Irie, Kazuyuki Sakemura, Masakazu Okinaka, and Kingo UchidaCite this: J. Org. Chem. 1995, 60, 25, 8305–8309Publication Date (Print):December 1, 1995Publication History Published online1 May 2002Pub…
Monte Carlo molecular modeling simulations have been performed to investigate some of the microscopic mechanisms underlying smectite clay swelling. The systems we have studied represent hydrated Wyoming montmorillonites in which the counterions are Li+, Na+, or K+. For each of these three counterions we have conducted…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSuperconducting and Semiconducting Magnetic Charge Transfer Salts: (BEDT-TTF)4AFe(C2O4)3.cntdot.C6H5CN (A = H2O, K, NH4)Mohamedally Kurmoo, Anthony W. Graham, Peter Day, Simon J. Coles, Michael B. Hursthouse, Jason L. Caulfield, John Singleton, Francis L. Pratt, William Haye…
Amorphous semiconductors, being intrinsically metastable in nature, exhibit a wide variety of changes in their physical properties, particularly when photoinduced using bandgap illumination. This article reviews the photoinduced phenomena exhibited by amorphous semiconductors such as amorphous hydrogenated silicon (an…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFluorescent Chemosensors Based on Energy Migration in Conjugated Polymers: The Molecular Wire Approach to Increased SensitivityQin Zhou and Timothy M. SwagerCite this: J. Am. Chem. Soc. 1995, 117, 50, 12593–12602Publication Date (Print):December 1, 1995Publication History Pu…
A program for evaluating the solution scattering from macromolecules with known atomic structure is presented. The program uses multipole expansion for fast calculation of the spherically averaged scattering pattern and takes into account the hydration shell. Given the atomic coordinates (e.g. from the Brookhaven Prot…
Abstract Novel macromonomers and telechelics of poly(2‐alkyl‐2‐oxazoline) (PROZO) were syn‐thesized by utilizing termination of propagating species (2‐oxazolinium ions) in the living polymerization of 2‐alkyl‐2‐oxazoline (ROZO) with suitable nucleophiles. Two types of p ‐vinylbenzyl–type macromonomers were obtained by…
Abstract Polythiophene films have been deposited on a platinum electrode surface by direct oxidation of thiophene in BF 3 ‐ethyl ether solution containing a controlled amount of water (5 mM). The electric and mechanical properties of the films were studied. Experimental results demonstrated that the films prepared at…
Abstract Copolyesters containing rigid segments (naphthalene and terephthalene) and flexible seg‐ments (aliphatic diol) structure were synthesized from DMN/DMT/EG (2,6‐dimethyl naphthalate/1,4‐dimethyl terephthalate/ethylene glycol) ternary monomers with various mole ratios. Copolyesters having intrinsic viscosities o…