Materials Literature
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Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
Abstract Change in yield and deformation associated with physical aging was studied on a series of polycarbonates (bisphenol‐A polycarbonate, polyestercarbonates, and phenolphthalein‐bisphenol‐A copolycarbonates) and a polysulfone. A combination of tensile and biaxial yield measurements, dynamical mechanical analysis,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and DNA binding and photonicking properties of acridine orange linked by a polymethylene tether to (1,2-diaminoethane)dichloroplatinum(II)Bruce E. Bowler, L. Steven Hollis, and Stephen J. LippardCite this: J. Am. Chem. Soc. 1984, 106, 20, 6102–6104Publication Date…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPyridinium molybdates. Synthesis and structure of an octamolybdate containing coordinately bound pyridine: [(C5H5N)2Mo8O26]4-E. M. McCarron III, J. F. Whitney, and D. B. ChaseCite this: Inorg. Chem. 1984, 23, 21, 3275–3280Publication Date (Print):October 1, 1984Publication H…
Abstract Cylindrical specimens of poly(methyl methacrylate) ( PMMA ) were quenched from above the glass transition and subsequently tested in torsion. Torque and normal‐force relaxation responses were recorded simultaneously. The experiments were performed at 40, 60, and 80°C, at increasing aging times and at deformat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface-enhanced Raman scattering from copper and zinc phthalocyanine complexes by silver and indium island filmsCarol. Jennings, Ricardo. Aroca, Ah Mee. Hor, and Rafik O. LoutfyCite this: Anal. Chem. 1984, 56, 12, 2033–2035Publication Date (Print):October 1, 1984Publication…
Abstract The kinetics of isothermal crystallization of polymer blends in which the matrix is a crystallizable polymer is considered. It is shown that depending on the difference in interfacial energies the inclusions are rejected or engulfed by the growing spherulite. Other factors influencing rejection, engulfing, an…
The adsorption of the cationic dye rhodamine 6G by montmorillonite (Wyoming bentonite) and laponite (synthetic hectorite) was studied by visible and fluorescent spectroscopy and by X-ray diffraction methods. Adsorption of the dye takes place by the mechanism of cation exchange. X-ray data indicate that the adsorbed ca…
The photodarkening effect in evaporated As2S3 films has been studied. Optical transmissivity was measured and its dependence on intensity, wavelength, temperature and previous thermal history was found. A structural investigation was also made using Raman spectroscopy. A feature at 231 cm−1 in the Raman spectra, which…
The scanning electron microscope (SEM) is usually operated with a beam voltage, V0, in the range of 10-30 kV, even though many early workers had suggested the use of lower voltages to increase topographic contrast and to reduce specimen charging and beam damage. The chief reason for this contradiction is poor instrume…
Abstract The kinetics of phase segregation of segmented linear polyurethanes, from a homogeneous single‐phase system into a two‐phase one, have been studied by measuring the heat capacity change at the glass transition of the soft phase. The extent of phase segregation at equilibrium is a linear function of the Flory–…
The electronic and magnetic properties of the (100) and (110) surfaces of ferromagnetic iron and the ferromagnetic iron-cobalt ordered alloys are calculated self-consistently. It is found that (a) in pure bcc iron the spin polarization increases from a bulk value of 2.12 to 2.90 at the (100) surface and to 2.55 at the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAtomic and group electronegativitiesJohn MullayCite this: J. Am. Chem. Soc. 1984, 106, 20, 5842–5847Publication Date (Print):October 1, 1984Publication History Published online1 May 2002Published inissue 1 October 1984https://pubs.acs.org/doi/10.1021/ja00332a014https://doi.o…
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The electrical properties of the solid solutions between stabilized zirconia and ceria, with , have been investigated, between 1273 and 1673 K, in a large range of oxygen partial pressures. The total electrical conductivity and the concentrations of the various charge carriers, determined through thermogravimetry and…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
Abstract Lap shear adhesion between laminated sheets of polycarbonate and styrene/acrylonitrile copolymers exhibits a sharp maximum when the acrylonitrile content of the copolymers is in the range of 25–27% by weight. Observations of shifts in glass transitions of the two phases in melt‐mixed polycarbonate/SAN blends…
A previously described technique for measuring the order of phase transitionsl-3 using DSC has been applied to the liquid crystalline transitions found in TBBA. All of the values obtained were in agreement with those that have been measured by other techniques, and also with what would be anticipated from the nature o…
Oxidation of wustite‐type solid solutions (A, B)0 and reduction of sesquioxide solid solutions (A, B) 2 0 3 can lead to the precipitation of a spinel phase (A, B) 3 0 4 at an inner reaction front. A representation of the reaction scheme and kinetics for each of the two cases will be given. Observations on the macrosco…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyoxotungstate anions containing high-valent rhenium. 1. Keggin anion derivativesFernando Ortega and Michael T. PopeCite this: Inorg. Chem. 1984, 23, 21, 3292–3297Publication Date (Print):October 1, 1984Publication History Published online1 May 2002Published inissue 1 Octo…