Materials Literature
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The curing of 200 μm thick, surfactant-stabilized water-in-dicyclopentadiene high internal phase emulsion films by ring opening metathesis polymerization yielded 140–200 μm thick, open-cellular macroporous membranes with 81.5 ± 2% porosity. Depending on the support on which high internal phase emulsion (HIPEs) were ca…
The geometries, formation energies and electronic band structures of (8, 0) and (14, 0) singlewalled carbon nanotubes (SWCNTs) with various defects, including vacancy, Stone-Wales defect, and octagon-pentagon pair defect, have been investigated within the framework of the density-functional theory (DFT), and the influ…
Dendrimers are monodispersed, hyperbranched macromolecules which have a globular shape and high pendant group density. Due to these unique properties, dendrimers have been used for catalytic, biochemical, pharmaceutical, biomedical and energy transfer applications. This study demonstrates the potential of a dendrimeri…
ABSTRACT Polyimides with low dielectric constants are important raw materials for the fabrication of flexible printed circuit boards and other microelectronic applications. As creation of voids in polyimide matrix could decrease dielectric constant, in this study mesoporous KIT‐6, synthesized hydrothermally, was funct…
Abstract Single crystals of Cu 3 TaSe 4 were obtained by chemical vapor transport with iodine as transport agent. Cu 3 TaSe 4 crystallizes in the sulvanite structure type with space group P $\bar{4}$ 3 m and a = 5.6613(3) Å at room temperature. Structure refinements against single‐crystal X‐ray diffraction data result…
The problems of finding efficient in practice mathematical models for foundry technological processes should be solved based on the required combination of their simplicity and adequacy. In this case, typification, which consists in identifying general laws of mathematical description of process parameters, taken into…
The formation of a macroscopic cholesteric spiral in a nematic liquid crystal (LC) doped with chiral molecules is studied. Measurements of the orientation of the disclination line formed in a LC θ-cell manufactured with one substrate having linear in-plane alignment and the opposing substrate having circular alignment…
A quantitative method for the characterization of nanoscale 3D morphology is applied to the investigation of a hybrid solar cell based on a novel hierarchical nanostructured photoanode. A cross section of the solar cell device is prepared by focused ion beam milling in a micropillar geometry, which allows a detailed 3…
In-coating dispersions of the para-toluene sulfonic acid emeraldine salt (ES) of polyaniline (PAni-pTS) are shown to be highly effective inhibitors of corrosion-driven organic coating delamination on zinc surfaces. However, this inhibition is achieved without the characteristic ennoblement of substrate potentials typi…
The magnetic properties of Mn‐doped ZnO (ZnO:Mn) nanorods grown by hydrothermal process at a temperature of 200 °C and a growth time of 3 h have been studied. The samples were characterized by using powder X‐ray diffraction with Rietveld refinement, scanning electron microscopy, energy‐dispersive X‐ray analysis and SQ…
Abstract The resemblance between colloidal and molecular polymerization reactions is very useful in fundamental studies of polymerization reactions, as well as in the development of new nanoscale systems with desired properties. Future applications of colloidal polymers will require nanoparticle ensembles with a high…
Pyridine N-oxide-BF2CF3 and -BF2C2F5 complexes and their derivatives were synthesized. Most of the complexes show fluorescence both in solution and in the solid state. By expanding the π-conjugated skeleton, the color of the fluorescence could be changed dramatically. A fluorophore with a high solvent dependency could…
All that's nano is not gold: Definite, crystalline molecular compounds of noble metals have been known for gold for the last few years. Now a simple synthesis of a nanoscale silver cluster compound containing [Ag44 (S-C6 H4 COOH)30 ](4-) ions has been found leading to gram scales quantities. Synthetic, structural, and…
Microwave absorption properties of three kinds of carbon-coated FeCo nanocapsules with modulated disorder levels of carbon shells have been investigated. The disorder level in carbon shells of Fe55Co45/(C, silicides) nanocapsules with silicides-doped carbon shells, Fe60Co40/C nanocapsules with amorphous carbon shells,…
Bombyx mori (silkworm) silk proteins have been utilized as unique biomaterials for various medical applications. To develop a novel affinity silk material, we generated a transgenic silkworm that spins silk protein containing the fibroin L-chain linked with the single-chain variable fragment (scFv) as a fusion protein…
The first examples of β-β directly linked, acetylene-bridged, and butadiyne-bridged 5,15-diazaporphyrin dimers have been prepared by palladium-catalyzed coupling reactions of nickel(II) and copper(II) complexes of 3-bromo-10,20-dimesityl-5,15-diazaporphyrin (mesityl=2,4,6-trimethylphenyl). The effects of the linking m…
Novel polypyrrole/modified poly(styrene‐ alt ‐maleic anhydride) conducting nanocomposites were prepared via emulsion polymerization using sodium dodecyl sulfate as an emulsifier and ammonium persulfate as an oxidant. Modified poly(styrene‐ alt ‐maleic anhydride) was used as an external dopant for conductivity enhancem…
A new strategy to form ordered hierarchical supramolecular gels that incorporate graphene oxide (GO) sheets and cationic rigid macrocyles under mild conditions via self-assembly is demonstrated. These ordered gels are stabilized by a series of non-covalent - donor-acceptor, π-π stacking, cation-π - interactions. These…
The hydrolysis of almost ideal networks based on macrodiols of average molar mass about 2 kg mol −1 , with L = 18 ester groups per chain is studied. Tensile testing is used to evaluate the crosslink density through the statistical theory of rubber elasticity at two temperatures and three values of relative humidity. A…
By controlling the crystallinity and average grain size of thermoelectric NaxCoO2 thin films, a doubling of the thermoelectric power factor is achieved in combination with a strong suppression of the thermal conductivity. These structurally engineered NaxCoO2 thin films outperform single crystalline and polycrystallin…