Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicrobial Synthesis and Characterization of Poly(3-hydroxybutyrate-co-3-hydroxypropionate)Eihaku Shimamura, Mariastella Scandola, and Yoshiharu DoiCite this: Macromolecules 1994, 27, 16, 4429–4435Publication Date (Print):August 1, 1994Publication History Published online1 Ma…
Near-infrared surface-enhanced Raman scattering (NIR SERS) was detected with high sensitivity for two model compounds, crystal violet and the DNA base adenine, adsorbed on silver and gold colloidal particles in aqueous solutions. The NIR SERS spectra were measured with a fiber-optic probe with the use of a Ti:sapphire…
With rapid solidification following pulsed laser melting, we have measured the dependence on interface orientation of the amount of solute trapping of several group III, IV, and V elements (As, Ga, Ge, In, Sb, Sn) in Si. The aperiodic stepwise growth model of Goldman and Aziz accurately fits both the velocity and orie…
We report computer simulations which test the accuracy of the diffusion theories used in the analysis of multiple light scattering data. Explicitly including scattering anisotropy and boundary reflections, we find that the predicted probability for transmission through a slab is accurate to 1% if the slab thickness is…
Abstract The effect of modification of the central moiety of the dianhydride residue and isomerism on the gas transport and physical properties were compared for six polyimides containing the hexafluoroisopropylidene group in the diamine residue. Substitution of bulkier groups within the dianhydride residue resulted i…
There has been considerable interest and activity in Australia during recent years in providing ultraviolet radiation protection for the public and the work force. Many requests from the public and manufacturers have been received by the Australian Radiation Laboratory for the quantification of the protection provided…
An anomalous line narrowing along with the appearance of several new lines on cooling Bi4Ti3O12 ceramics, indicates a subtle phase transition in the 150–200 K region. In the same temperature range, anomalies in dielectric properties (dielectric constant, coercive field, and spontaneous polarization) of single-crystal…
[Extract] A general approach has been developed for the preparation of heteroleptic tris(bidentate)ruthenium(II) complexes which exhibit significant continuous light absorption throughout the UV and visible regions. It utilizes separate metal-to-ligand charge transfer (MLCT) transitions to different heterocyclic ligan…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSonochemical Destruction of Chlorinated C1 and C2 Volatile Organic Compounds in Dilute Aqueous SolutionAshish. Bhatnagar and H. Michael. CheungCite this: Environ. Sci. Technol. 1994, 28, 8, 1481–1486Publication Date (Print):August 1, 1994Publication History Published online1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTShape Transformations in the Lecithin-Bile Salt System: From Cylinders to VesiclesStefan U. Egelhaaf and Peter SchurtenbergerCite this: J. Phys. Chem. 1994, 98, 34, 8560–8573Publication Date (Print):August 1, 1994Publication History Published online1 May 2002Published inissu…
Recent structural studies of the undoped and iodine-doped polyacetylenes (prepared by the Tsukamoto and co-workers method), PF6−-doped polypyrrole and polyaniline emeraldine base and (hydrochloric acid and camphorsulfonic acid) salts are presented. Some key features of the polymer chain array and its evolution with th…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuantitative Two-Dimensional EXSY Spectroscopy and Dynamic Behavior of a Paramagnetic Lanthanide Macrocyclic Chelate: YbDOTA(DOTA = 1,4,7,10-Tetraazacyclododecane-N,N',N'',N'''-tetraacetic Acid)Vincent Jacques and Jean F. DesreuxCite this: Inorg. Chem. 1994, 33, 18, 4048–405…
Irradiation of ketoprofen in neutral aqueous medium gave rise to 3-ethylbenzophenone as the major photoproduct. Its formation is justified via protonation of a benzylic carbanion or hydrogen abstraction by a benzylic radical. Minor amounts of eight additional compounds were isolated. Four of them are derived from the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAxial Ligand Orientation in Iron(III) Porphyrinates: Effect of Axial .pi.-Acceptors. Characterization of the Low-Spin Complex [Fe(TPP)(4-CNPy)2]ClO4Martin K. Safo, F. Ann Walker, Arnold M. Raitsimring, W. Patrick Walters, Daniel P. Dolata, Peter G. Debrunner, and W. Robert S…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotosensitization of Quantum-Size TiO2 Particles in Water-in-Oil MicroemulsionsErnesto Joselevich and Itamar WillnerCite this: J. Phys. Chem. 1994, 98, 31, 7628–7635Publication Date (Print):August 1, 1994Publication History Published online1 May 2002Published inissue 1 Augu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of Water-Soluble Self-Acid-Doped PolyanilineShow-An Chen and Gue-Wuu HwangCite this: J. Am. Chem. Soc. 1994, 116, 17, 7939–7940Publication Date (Print):August 1, 1994Publication History Published online1 May 2002Published inissue 1 August 1994https://pubs.acs.org/d…
The dispersion relation of photons transmitting through a photonic one-dimensional quasicrystal arranged in a Fibonacci sequence was observed by measuring the spectrum of the phase change of the transmitted light using a Michelson-type interferometer. The phase spectrum obtained clearly showed the self-similar structu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemical Preparation and Analytical Applications of Ultrathin Overoxidized Polypyrrole FilmsChenChan. Hsueh and Anna. Brajter-TothCite this: Anal. Chem. 1994, 66, 15, 2458–2464Publication Date (Print):August 1, 1994Publication History Published online1 May 2002Publish…
The in-plane thermal conductivity ${\mathrm{\ensuremath{\kappa}}}_{\mathrm{\ensuremath{\parallel}}}$ has been measured over the temperature range 5--400 K for samples of chemical-vapor-deposited (CVD) diamond made by both the microwave and hot-filament processes. The samples span a range of defect level, grain size, a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSingle-Crystal X-ray Structure and Magnetic Properties of the Polyoxotungstate Complexes Na16[M4(H2O)2(P2W15O56)2].cntdot.nH2O (M = MnII, n = 53; M = NiII, n = 52): An Antiferromagnetic MnII Tetramer and a Ferromagnetic NiII TetramerC. J. Gomez-Garcia, J. J. Borras-Almenar,…