Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of poly(1-adamantyl methacrylate): effects of the adamantyl group on radical polymerization kinetics and thermal properties of the polymerAkikazu Matsumoto, Satoshi Tanaka, and Takayuki OtsuCite this: Macromolecules 1991, 24, 14, 4017–4024Publi…
Abstract In many important applications, an elastomer is subjected to repeated deformations of sufficient magnitude and frequency to lead to generation of considerable heat and (depending on the rate of heat removal) of a significant rise in temperature. The purpose of this review is to examine the mechanisms of heat…
We have used Brillouin scattering to measure the temperature dependence of the sound velocities of the longitudinal and transverse vibrational modes in various directions in small single crystals of monoclinic ZrO 2 . Using these velocities and the Christoffel equation, we have calculated the 13 elastic stiffness modu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleChain-length dependence of the glass transition temperatureK. O'Driscoll and R. Amin SanayeiCite this: Macromolecules 1991, 24, 15, 4479–4480Publication Date (Print):July 1, 1991Publication History Published online1 May 2002Published inissue 1 July 1991https://pubs.acs.org/doi/1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRadical scavenging in the sonolysis of aqueous solutions of iodide, bromide, and azideMaritza Gutierrez, Arnim Henglein, and Fernando IbanezCite this: J. Phys. Chem. 1991, 95, 15, 6044–6047Publication Date (Print):July 1, 1991Publication History Published online1 May 2002Pub…
The alpha -peak master functions as obtained within the mode coupling theory for the supercooled liquid dynamics near the glass transition singularity are discussed. Double peak phenomena are found as a generic feature of the theory related to the self crossing of the transition hypersurface. They lead to two scenario…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic states of porphycenesJacek Waluk, Monika Muller, Petra Swiderek, Matthias Kocher, Emanuel Vogel, Georg Hohlneicher, and Josef MichlCite this: J. Am. Chem. Soc. 1991, 113, 15, 5511–5527Publication Date (Print):July 1, 1991Publication History Published online1 May 2…
The first full partial-structure-factor analysis of molten ${\mathrm{GeSe}}_{2}$ is made using the method of isotopic substitution in neutron diffraction. It is shown that the melt comprises roughly equal numbers of edge- and corner-sharing tetrahedra which give rise to a highly connected or network liquid. Concentrat…
Review: Non‐conventional phosphor host materials such as cryptands (see Figure) or zeolites now offer potential alternatives to the traditional inorganic solid‐state materials which find applications in e.g. fluorescent lamps, T.V. sets, or X‐ray detectors. Recent efforts to further optimize conventional materials are…
Structural slowing down in a simple model of a polydisperse suspension of charge-stabilized colloidal particles is explored by molecular-dynamics and Brownian-dynamics simulations. The former ignore solvent effects, but allow a comparison with recent experimental, numerical, and theoretical work on ``fragile'' glass f…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAging processes of alumina sol-gels: characterization of new aluminum polyoxycations by aluminum-27 NMR spectroscopyG. Fu, L. F. Nazar, and A. D. BainCite this: Chem. Mater. 1991, 3, 4, 602–610Publication Date (Print):July 1, 1991Publication History Published online1 May 200…
Vibrational spectra have been measured by neutron scattering for a series of Se-Ge and Se-As-Ge glasses, spanning a wide range in composition and, consequently, in network connectivity. Low-frequency ``floppy'' modes arising from underconstrained atomic configurations have been observed, in qualitative agreement with…
coatings were deposited on graphite and titanium from an aqueous solution based on a water‐soluble precursor. A two‐step mechanism is suggested for the formation: generation of hydroxyl ions (OH − ) at the cathodic substrate by reduction of and dissolved , and then reaction of the hydroxyl ions with zirconyl ions pres…
Lithium batteries using solid redox polymerization electrodes (SRPEs) maintain the inherent advantages of all‐solid‐state, thin‐film systems while overcoming some of the limitations of using intercalation compounds as positive electrode ( i.e. , insufficient rate capability and capacity utilization). Laboratory Li/PEO…
Abstract In the presence of a bis(1,3-diketonato)nickel(II) complex, various olefins are directly monooxygenated into the corresponding epoxides on treatment with atmospheric pressure of oxygen or air and aldehydes. Especially, it is noted that bis[1,3-bis(p-methoxyphenyl)-1,3-propanedionato]nickel(II) behaves as an e…
Review: Ceramic multilayer capacitors used in surface‐mount electronics have decreased in size by a factor of four over the last five years while their capacitance per unit volume has increased by the same factor. The preparation and processing procedures applied to ultrafine dielectric ceramic powders used in the cap…
In order to make clear the relationship between the microstructure of the porous oxide layer and electrochemical properties of air electrodes of solid oxide fuel cells, air/porous oxide/yttria stabilized zirconia, complex‐impedance and cathodic polarization were measured on the electrodes at 900–1000°C with the porous…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemical ring-opening reaction of indolinespiropyrans studied by subpicosecond transient absorptionNiko P. Ernsting and Thomas Arthen-EngelandCite this: J. Phys. Chem. 1991, 95, 14, 5502–5509Publication Date (Print):July 1, 1991Publication History Published online1 May…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTScanning tunneling microscopy studies of carbon-oxygen reactions on highly oriented pyrolytic graphiteHsiangpin Chang and Allen J. BardCite this: J. Am. Chem. Soc. 1991, 113, 15, 5588–5596Publication Date (Print):July 1, 1991Publication History Published online1 May 2002Publ…
A thermal description of the electron-ion interaction in the cooling phase of the displacement cascade in metals is given. Differential equations governing the transfer of heat between the two systems are derived and solved numerically using physically reasonable parameters for cascades in Cu and Ni. Large differences…