Materials Literature
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A method is used for preparing gold NRs with aspect ratios ranging from 1.5 to 10 for which the surface plasmon absorption maxima are between 600 and 1300 nm. This method has been adapted from a previously published seed-mediated growth method (Jana et al. Adv. Mater. 2001, 13, 1389). The disadvantages and limitations…
Bu4N)(2)[Hg4I10] is the first compound for which tetranuclear anions [Hg4I10](2-) are observed in its crystal structure. Charge balance is achieved by ordered [Bu4N](+) cations.
Results of the small-angle X-ray scattering (SAXS) of diamonds with different concentrations and types of optically-active defects are reviewed. It is shown that nitrogen-free (IIA) diamonds and diamonds with a low degree of nitrogen aggregation have no SAXS. Annealing of diamonds leads to the formation of three-dimen…
Indium doped ZnO films were deposited by the pyrosol process on glass substrates at different temperatures from solutions containing In/Zn molar ratios up to 10%. The nanostructure of the films was investigated using grazing-incidence small-angle X-ray scattering (GISAXS). The mass density was determined by X-ray refl…
Abstract A detailed study of the electrical transport properties of semiconducting perovskites Bi 0.1 A 0.9 MnO 3 (A = Ca, Sr, Pb of increasing ionic radius r i ) have been made over a wide range of temperature 80–375 K. XRD studies indicate a change of structural differences with change of ionic radius r i of A. The…
Transparent siloxane-polymethylmethacrylate (PMMA) hybrids were synthesized by the sol-gel process through hydrolysis of methacryloxyproyltrimethoxysilane (TMSM), tetramethoxysilane (TMOS) and polymerization of methylmethacrylate (MMA) using benzol peroxide (BPO) as catalyst. These composites have a good chemical stab…
Novel responsive solids were prepared by randomly cross-linking the polyisoprene chains of a disordered polystyrene-polyisoprene block copolymer. Our experiments show that block copolymer chains, composed of hundreds of repeat units, can undergo reversible order-disorder transitions despite the quenched randomness tha…
Small-angle neutron scattering is used to investigate porous alumina membranes (γ-Al 2 O 3 ) made of parallel channels with cylindrical shape. The membranes are produced by anodization of thin aluminium sheets. The scattering experiments are performed in a coaxial geometry where the cylindrical pores are oriented with…
Eight oxamato-bridged heterotrinuclear Ni(II)Cu(II)Ni(II) complexes of formula ([Ni(H(2)O)(dpt)](2)(mu-Cu(H(2)O)(opba)))(ClO(4))2 (1), ([Ni(H(2)O)(dien)](2)(mu-Cu(pba)))(ClO(4))(2).6H(2)O (2), ([Ni(H(2)O)(Medpt)](2)(mu-Cu(OHpba)))(ClO(4))(2).4H(2)O (3), ([Ni(H(2)O)(dien)](2)(mu-Cu(Me(2)pba)))(ClO(4))(2).2.5H(2)O (4),…
Based on new methodological developments in the area of risk-based inspection planning (RBI) for structural components subject to fatigue degradation, the present paper presents a unified approach to risk-based inspection planning for offshore facilities comprising components and systems of both the structural and pro…
Eine molekulare Funktionseinheit wurde durch organisierte Anordnung von photoaktiven Azobenzolliganden innerhalb eines porösen dreidimensionalen Gerüsts erhalten. Durch strahlungsinduzierte trans→cis-Konformationsänderung des Azobenzolliganden wird Photoenergie in mechanische Arbeit umgewandelt, die zum Öffnen und Sch…
X-ray total external reflection fluorescence has been applied to detect an angular dependence of fluorescence yield modulated by evanescent/X-ray standing wave pattern from metal-rich organic monolayer alone on water surface. Theoretical consideration reveals that electric field intensity in a molecular monolayer is c…
An attempt was made to improve the dispersion stability of surfactant-free oil-in-water emulsions (SFEs) with the addition of hydrophobic polymers on the basis of a new hydrophobic approach for dispersion. Benzene (Bz) and cyclohexane (Cy), both with added polystyrene (PS), were dispersed in water. The addition of PS…
Titanium dioxide thin films were prepared by spin coating of sol precursor onto microscopic glass slides, silicon and indium tin oxide (ITO) coated glass substrates. Spin speed was varied between 1000 and 6000 rpm. From the morphological analysis, it is found that thin films spun with speed ω⩽4000 rpm assume higher or…
Abstract Blends of a poly(2,6‐dimethyl‐1,4‐phenylene oxide) (PPO)/polyamide 6 (PA 6) alloy toughened with a novel polyolefin elastomer poly(ethylene‐1‐octene) (POE) were prepared via melt extrusion. In order to improve the compatibilization between POE and the PPO/PA 6 alloy, POE was grafted with maleic anhydride (MA)…
New approaches for domain structure determination of macromolecules from X-ray solution scattering are presented. An ab initio method for building structural models of proteins from the scattering data implemented in the computer program GASBOR employs simulated annealing to find a chain-like spatial distribution of d…
Using FcCOONa (Fc = (eta(5)-C(5)H(5))Fe(eta(5)-C(5)H(4))) as starting material, we obtained an unprecedented metal-organic coordination polymer containing ferrocenecarboxylate components [[Pb(2)(FcCOO)(eta(2)-FcCOO)(mu(2)-eta(2)-FcCOO)(mu(3)-eta(2)-FcCOO)(CH(3)OH)].1.5CH(3)OH.H(2)O](n) (1), tetramer [Zn(4)(mu(2)-FcCOO…
Small-angle X-ray scattering has been used to examine porous glasses. The experiment and analysis of the extracted data are described with specific concern for the quantitative characterization of the pore structure. The techniques used are illustrated by the results obtained from two selected porous glasses. Small-an…
Abstract The long‐term thermal stability of postused CaCO 3 ‐filled Polypropylene was evaluated through accelerated heat aging tests for about 2000 h. The material from old garden chairs was recycled by applying the remelting‐restabilization technique while using different stabilization systems in selected concentrati…
Reaction and crystallization kinetics play an important role in the recovery of enantiomers and polymorphs by crystallization. An approach that couples equilibrium phase behavior and kinetics is proposed for the design of such crystallization processes. A generic model that accounts for reaction, as well as crystal nu…