Materials Literature
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A new biomimetic strategy for modification of biomaterial surfaces with poly(ethylene glycol) (PEG) was developed. The strategy exploits the adhesive characteristics of 3,4-dihydroxyphenylalanine (DOPA), an important component of mussel adhesive proteins, to anchor PEG onto surfaces, rendering the surfaces resistant t…
A reflection intensity integration method is presented based upon ab initio calculation of three-dimensional ( x , y , ω) reflection boundaries from a few physical crystal and instrument parameters. It is especially useful in challenging circumstances, such as the case of a crystal that is far from spherical, anisotro…
Abstract For Abstract see ChemInform Abstract in Full Text.
Cobalt(II), nickel(II), copper(II) and zinc(II) phthalocyanines substituted by eight alkoxy chains in the peripheral (2,3,9,10,16,17,23,24) positions were prepared. The alkoxy chain lengths are octyloxy (C 8 H 17 O), dodecyloxy (C 12 H 25 O) and hexadecyloxy (C 16 H 33 O). Studies by polarized optical microscopy and h…
A diffusion-corrected simultaneous multilayer (DCSM) model was developed, taking into account up-step and down-step diffusion of adatoms and enabling rapid identification of different film growth modes. This DCSM model was applied to the initial growth of Cr on (100) ${\mathrm{S}\mathrm{r}\mathrm{T}\mathrm{i}\mathrm{O…
The equation of state for Langmuir monolayers proposed earlier (Fainerman, V. B.; Vollhardt, D. J. Phys. Chem. B 1999, 103, 145.) is generalized for the case that one, two or more phase transitions in the monolayer take place, provided that the two-dimensional compressibility undergoes a jump at the phase transition,…
The deposition of epitaxial CeO 2 nanostructured thin films on rutile (TiO 2 ) substrates by metal−organic chemical vapor deposition (MOCVD) has been carried out in a wide temperature range. Films have been grown on (001)TiO 2 from the Ce(III) 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato diglyme adduct (Ce(hfa) 3 ·diglym…
Abstract The compatibilizing effects of styrene‐glycidyl methacrylate (SG) copolymers with various glycidyl methyacrylate (GMA) contents on immiscible blends of poly(trimethylene terephthalate) (PTT) and polystyrene (PS) were investigated using scanning electron microscopy (SEM), Fourier transform infrared spectroscop…
Abstract The isothermal crystallization kinetics of isotactic polypropylene (iPP) and iPP nucleated with the sorbitol derivatives 1,3:2,4‐bis(4‐methyldibenzylidene)sorbitol and 1,3:2,4‐bis(3,4‐dimethylbenzylidene)sorbitol was studied, along with the subsequent melting behavior, as a function of the nucleating agent co…
Six novel series of mononuclear ortho-palladated and ortho-platinated metallomesogens have been obtained by combination of rod-like heteroaromatic liquid crystals with bent or half-disc-shaped 1,3-diketonate units. The synthesis of these molecules was achieved by ortho-metallation of rod-like 2-phenylpyrimidines and 2…
A solvothermal route to MnWO4 nanoparticles and nanorods has been developed. These nano-size products have been characterized by X-ray diffraction and transmission electron microscopy. The pressure, pH and temperature of the reaction systems were found to play important roles in determining the morphologies of the MnW…
[structure: see text] A series of oligo(phenylenevinylene) (OPV) derivatives with finite conjugation units were prepared in short steps from few building blocks. The central and terminal aryl groups of these OPV dyes contain cyano and Ph(2)N substituents, respectively, which affect color of fluorescence. The wavelengt…
We couple a morphological study of a mixture of diblock copolymers and spherical nanoparticles with a micromechanical simulation to determine how the spatial distribution of the particles affects the mechanical behavior of the composite. The morphological studies are conducted through a hybrid technique, which combine…
Nanoparticles of iron phosphide have been prepared through a new strategy involving the reductive annealing of nanoparticulate iron phosphate precursors cast onto atomically flat mica surfaces. This route appears to be general for a range of transition metals and pnicogens and avoids the use of highly toxic and pyroph…
The reactions of ground-state boron atoms with CO in solid argon have been reinvestigated. The BCO molecule was formed by codeposition of laser-ablated boron atoms with CO in argon. The ν 1, ν 2, ν 3, 2ν 1, 2ν 3, and ν 1 + ν 3 modes of isotopic BCO molecules have been measured. The linear dicarbonyl, B(CO) 2, and the…
We have prepared solutions of multiwalled carbon nanotubes in Aroclor 1254, a mixture of polychlorinated biphenyls. The solutions are stable at room temperature. Transport measurements were performed using a scanning-tunneling probe on a sample prepared by spin coating the solution on gold substrates. Conductance step…
The structure and formation of particulate silica networks in biopolymer solutions were studied using rheological measurements and diffusing wave spectroscopy (DWS). For samples with different volume fractions of silica, the frequency-dependent viscoelastic moduli can be scaled onto one master curve by shifting the da…
Abstract The effect of sodium dihydrogenphosphate, trisodium pyrophosphate, and sodium aluminocarbonate on the thermal decomposition of rigid polyurethane (PUR) foams, based on diphenylmethane‐4,4‐diisocyanate, diphenyl‐2,2‐propane‐4,4‐dioxyoligo(ethylene oxide), and oxyalkylenated toluene‐2,6‐diamine, blown with pent…
A novel coreduction method was developed to synthesize uniform one-dimensional CoTe and NiTe nanocluster wires. In the synthesis, soluble Na(2)TeO(3) was used to supply a highly reactive Te source and N(2)H(4).H(2)O was used both as reducing agent and as complexing agent. The as-prepared samples were characterized by…
The microscopic theory of the magnetically anisotropic effective pseudo-spin-(1)/(2) Hamiltonian for a pair of Co(2+) ions is reported. In the framework of the second-order perturbation approach, the analytical expressions are found for the components of the tensor of the exchange interaction, g-tensor, and the factor…