Materials Literature
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The photofragmentation reaction of poly(methylmethacrylate) (PMMA) by soft x-ray irradiation was investigated by measuring the yield of released neutral fragments and the changes in the absorption spectra in the carbon and oxygen K-edge regions. Films of 0.4–1.0 μm thicknesses were irradiated with various doses of mon…
Polypyrrole‐tetrathiomolybdate‐molybdenum trisulfide, , thin film coated tin oxide electrodes have been studied by UV‐visible spectroscopy. The films are obtained by electrochemical polymerization from an aqueous solution of 0.5 M pyrrole and 0.5 m M at a potential of 0.7 V vs. SCE. The UV‐visible spectroscopy data su…
Abstract Cerium‐rich conversion coatings have been deposited onto aluminium 2024‐T351 alloy by immersion into a solution containing 10 g L −1 CeCl 3 and 1% H 2 O 2 in a process described as ‘cerating’. Prior to deposition the alloy had been prepared either by using a standard chemical pretreatment used for aerospace a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnhanced Photoactivity of a Titanium(IV) Oxide Supported on ZSM5 and Zeolite A at Low CoverageYiming Xu and Cooper H. LangfordCite this: J. Phys. Chem. 1995, 99, 29, 11501–11507Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published iniss…
The elastic and mechanical behavior, from room temperature up to 1300 deg; C, of Stoichiometric polycrystalline magnesium aluminum spinel is studied. Elastic modulus, fracture toughness, and modulus of rupture measurements and observations of polished and fracture surfaces have been performed. Two well‐differentiated…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEfficient Photo-Hole Injection from Adsorbed Cyanine Dyes into Electrodeposited Copper(I) Thiocyanate Thin FilmsBrian O'Regan and Daniel T. SchwartzCite this: Chem. Mater. 1995, 7, 7, 1349–1354Publication Date (Print):July 1, 1995Publication History Published online1 May 200…
The high frequency operation of magnetic components, in applications such as filters, makes them ideal candidates for thick film technology along with resistors and capacitors. This in turn leads to distinct advantages over labor intensive wire wound components: improved reliability, repeatability, accuracy and conseq…
peer reviewed
How delocalized is an EELS signal? For instance, how far from a silicon atom must the electron probe be before a Si edge can be detected? A crude estimate of a localization length (λθE) suggests a maximum impact parameter of 50 Å for a typical plasmon loss. Yet with care, subnanometer resolution plasmon maps can be ac…
Abstract The use of an energetics approach to treat various aspects of fatigue and fracture in elastomers is reviewed. Topics covered include tearing, crack growth and fatigue, tensile failure, oxidative effects, environmental cracking, cutting by sharp objects, abrasion, adhesion, friction (under circumstances where…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSilicon-Tethered ReactionsMikael Bols and Troels SkrydstrupCite this: Chem. Rev. 1995, 95, 5, 1253–1277Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissue 1 July 1995https://pubs.acs.org/doi/10.1021/cr00037a006https://doi.org/…
Defying the conventional wisdom regarding first-order transitions, solid-solid displacive transformations are often accompanied by pronounced pretransitional phenomena. Generally, these phenomena are indicative of some mesoscopic lattice deformation that ``anticipates'' the upcoming phase transition. Among these precu…
The thermal conductivity of oxide thin films deposited using dc, rf, and ion-beam sputtering is measured in the temperature range 80--400 K using the 3\ensuremath{\omega} method. Thermal conductivity data for amorphous thin films of ${\mathrm{SiO}}_{2}$ are nearly identical to bulk a-${\mathrm{SiO}}_{2}$. Data for amo…
Abstract The viscoelastic properties of amorphous polymers are reviewed with emphasis on the glass to rubber dispersion (often referred to as the transition zone). Deviations from thermorheologieal simplicity (where molecular retardation and relaxation mechanisms have the same temperature dependence) are identified. M…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMethod for enhancing the sensitivity of fluorescent chemosensors: energy migration in conjugated polymersQin Zhou and Timothy M. SwagerCite this: J. Am. Chem. Soc. 1995, 117, 26, 7017–7018Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Publ…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface Structures of Supported Molybdenum Oxide Catalysts: Characterization by Raman and Mo L3-Edge XANESHangchun Hu, Israel E. Wachs, and Simon R. BareCite this: J. Phys. Chem. 1995, 99, 27, 10897–10910Publication Date (Print):July 1, 1995Publication History Published onli…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructural and Chemical Properties of Silyl RadicalsChryssostomos ChatgilialogluCite this: Chem. Rev. 1995, 95, 5, 1229–1251Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissue 1 July 1995https://pubs.acs.org/doi/10.1021/cr0003…
PURPOSE: The purpose of our studies was to define the maximal-tolerated dose of liposomal doxorubicin (DOX-SL; Liposome Technology Inc, Menlo Park, CA), a doxorubicin formulation of polyethyleneglycol-coated liposomes, characterize the toxicities associated with this formulation, and evaluate any indication of antitum…
While thermodynamically stable metal oxides and other solids could be prepared by conventional high-temperature (ceramic) methods, syntheses of the more important metastable oxide materials of current interest, such as the zeolites and other microporous solids as well as layered and framework oxides of various kinds r…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGrowth and Characterization of Sexithiophene Single CrystalsGilles Horowitz, Bernard Bachet, Abderrahim Yassar, Philippe Lang, Frederic Demanze, Jean-Louis Fave, and Francis GarnierCite this: Chem. Mater. 1995, 7, 7, 1337–1341Publication Date (Print):July 1, 1995Publication…