Materials Literature
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Monte Carlo simulation is used to study the elastic properties of the classical hard-sphere solid. The elastic constants ${C}_{11}$, ${C}_{12}$, and ${C}_{44}$ are computed for the fcc lattice structure at the melting density. Poisson's ratio is computed and is shown to be positive. These ``exact'' results are compare…
Abstract From the Part I experiments, n -butyl-EAB shows a strong interaction (chemisorption) with the carbon black surface. The chemical structure of chemisorbed n -butyl-EAB is similar to that of the component, with a peak at 290 nm. The EAB groups of the chain-ends in the modified polymer enhance the adsorption of…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrown thioether chemistry of iron(II/III). Synthesis and characterization of low-spin bis(1,4,7-trithiacyclononane)iron(III) and crystal structure of [FeII([9]aneS3)([9]aneS3(O))](ClO4)2.2NaClO4.H2OHeinz Josef Kueppers, Karl Wieghardt, Bernhard Nuber, Johannes Weiss Weiss, E…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDual emissions from (2,9-dimethyl-1,10-phenanthroline)bis(tertiary phosphine)copper(1+) systems in a rigid glass: influence of the phosphine donor strengthDominick J. Casadonte Jr. and David R. McMillinCite this: Inorg. Chem. 1987, 26, 23, 3950–3952Publication Date (Print):N…
Cobalt(I1) 4,4'4″4‴-tetrasulfophthalocyanine, Co^(II)TSP, covalently linked to the surface of titanium dioxide particles, TiO_2-CoTSP, is shown to be an effective photocatalyst for the oxidation of sulfur(IV) to sulfur(VI) in aqueous suspensions. Upon band-gap illumination of the semiconductor, TiO_2, conduction-band…
Experimental techniques for the deposition and sintering of ceramic particle films on a rigid substrate have been investigated. Three representative systems (SiO 2 , ZnO‐Bi 2 O 3 , and Al 2 O 3 ) were chosen to determine the validity of the conceptual processing model. Crack‐free, sintered films 1 to 50 μm thick were…
A comparative study of three related families of ferroelectric liquid crystals and some distinctly different analogues has been made with the aim of clarifying systematic trends in smectic C phase stability and the appearance of macroscopic polarization. The substances are interesting not only because the C phases are…
This review outlines the advances that have been made in experimental data reduction and analysis techniques which can be used to characterise the crystallization kinetics and crystal size distributions in batch crystallizers. A process description based on batch conservation equations describing population, mass and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCooperative relaxations in condensed macromolecular systems. 2. Computer simulation of self-diffusion of linear chainsT. Pakula and S. GeylerCite this: Macromolecules 1987, 20, 11, 2909–2914Publication Date (Print):November 1, 1987Publication History Published online1 May 20…
The electrochemical response of Al alloys containing various concentrations of Mo in solid solution was studied using potentiodynamic polarization. The evolution of the chemical composition of the passive film during exposure to deaerated was analyzed using x‐ray photoelectron spectroscopy. Exposure of Al‐Mo alloys to…
It is shown that the penetration plots of the grain-boundary diffusion of 65Zn in polycrystalline Al samples are curved at fixed temperatures and that this upward curvature changes with the annealing time. The penetration profiles can be interpreted in terms of sub-boundary diffusion characterized by the parameter P 1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal structures and magnetic behavior of pyridinium bis(oxalato)cuprate(II)-oxalic acid and bis(2-methylimidazole)copper(II) oxalateU. Geiser, B. L. Ramakrishna, R. D. Willett, F. B. Hulsbergen, and J. ReedijkCite this: Inorg. Chem. 1987, 26, 22, 3750–3756Publication Date…
The stability constants of 1:l "supercomplexes" formed between the three large, variously protonated, polyazacycloalkanes \n1,4,7,10,13,16,19,22,25-nonaazacycloheptacosan(eL I), 1,4,7,10,13,16,19,22,25,28-decaazacyclotriacontan(eL Z), and \n1,4,7,10,13,16,19,22,25,28,31-undecaazacyclotritriacontane(L 3) and th…
The spontaneous ferroelectric polarization in the chiral smectic-C phase can be measured by monitoring the dynamic response to a changing electric field. A model for the system is presented and analyzed for the two cases of square-wave and sinusoidal voltage applied to a ``bookshelf geometry'' sample, where the smecti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of solvent casting on evolution of phase morphology of PC/PMMA blendsJeanne M. Saldanha and Thein KyuCite this: Macromolecules 1987, 20, 11, 2840–2847Publication Date (Print):November 1, 1987Publication History Published online1 May 2002Published inissue 1 November…
Binary mixtures of spheres were used to prepare a variety of two‐dimensional structures ranging from ordered to disordered. The extent of particle order was influenced by the size ratio and the concentration of the bimodal constituents. If either the sizes or the concentrations were very different, the structures beca…
The density functional theory of freezing is used to study the liquid to crystal phase transition in the hardsphere and Lennard-Jones systems. An important step in the calculation is the parametrization of the solid phase average single particle density ρ(r). In this work two popular parametrizations are compared. The…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of spin-state interconversion in ferrous spin-crossover complexes: direct evidence for quantum mechanical tunnelingChuan Liang Xie and David N. HendricksonCite this: J. Am. Chem. Soc. 1987, 109, 23, 6981–6988Publication Date (Print):November 1, 1987Publication Hist…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of aromatic poly(ether ketones)Mitsuru Ueda and Masaki SatoCite this: Macromolecules 1987, 20, 11, 2675–2678Publication Date (Print):November 1, 1987Publication History Published online1 May 2002Published inissue 1 November 1987https://pubs.acs.org/doi/10.1021/ma00…
A series of PEO/PLA copolymers, covering a wide range of compositions and segmental lengths, was synthesized, and their morphology was investigated by means of DSC and IR studies. For matrices comprising PEO chains with molecular weights below 3400, no soft-segment crystallinity was detected. When long hard segments w…