Materials Literature
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The transfer of six dendritric molecules, DMs, across the water/1,2-dichloroethane interface was investigated using cyclic voltammetry. From the variation of peak potential with pH, two different mechanisms of transfer were postulated depending on the nature of the molecules. Voltammetric parameters were employed to e…
Abstract In this Full Paper, the possibility of reversibly changing the diffraction efficiency of gratings, fabricated by soft molding lithography on polymer films, containing photochromic molecules, is demonstrated. In particular, alternating UV and visible laser irradiation of the gratings causes the doped photochro…
We test the performance of a recently proposed fundamental measure density functional of aligned hard cylinders by calculating the phase diagram of a monodisperse fluid of these particles. We consider all possible liquid-crystalline symmetries, namely, nematic, smectic, and columnar, as well as the crystalline phase.…
A spheroid is an ellipsoid for which two of the axes are equal, and here the interaction between spheroidal fullerenes and carbon nanotubes is modeled using the Lennard–Jones potential and the continuum approximation. The resulting surface integrals are evaluated analytically for a number of configurations, including…
Abstract In this article, the effects of m ‐isopropenyl‐α,α‐dimethylbenzyl isocyanate grafted polypropylene ( m ‐TMI‐PP) on the interfacial interaction of wood‐flour/polypropylene (WF/PP) were investigated by means of scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermogravimetry, dynami…
Abstract Two Yb 3+ compounds, [C(NH 2 ) 3 ] 2 [Yb(EDTA)(H 2 O) 2 ]ClO 4 · 6H 2 O and [C(NH 2 ) 3 ][Yb(CDTA)(H 2 O) 2 ] · 4H 2 O, where EDTA is the ethylenediaminetetraacetate anion and CDTA is the trans ‐1,2‐diaminecyclohexane‐ N , N , N′ , N′ ‐tetraacetate anion, were obtained and their crystal structures and spectro…
Abstract Thermoplastic vulcanizates (TPE‐Vs) are a special class of thermoplastic elastomers (TPEs), where the rubber phase is dynamically crosslinked in the presence of a thermoplastic matrix. The goal of this work is to compare the behavior of two curing agents systems, conventional peroxide named Peroximon and bism…
To determine whether the stationary sigma factor, sigma(S), influences polyhydroxyalkanoate metabolism in Pseudomonas putida KT2440, an rpoS-negative mutant was constructed to evaluate polyhydroxyalkanoate accumulation and expression of a translational fusion to the promoter region of the genes that code for polyhydro…
Ferromagnetic resonance was used to study the influence of vicinal (miscut) angle and film thickness on in-plane fourfold and uniaxial magnetic anisotropies in epitaxial ${\mathrm{Fe}}_{3}{\mathrm{O}}_{4}$ films grown on vicinal MgO(100) surfaces. The in-plane fourfold anisotropy constant ${K}_{4\ensuremath{\parallel}…
Abstract Ordered nanowells with diameters of ca. 40 nm and depth of 1–2 nm were prepared on a poly(methyl methacrylate) (PMMA) spherical domain, which was exposed on the polystyrene‐ block ‐poly(methyl methacrylate) (PS‐ b ‐PMMA) copolymer thin film. The PS‐ b ‐PMMA film formed spherical PMMA domains after the film wa…
Peculiarities in the nonlinear dielectric response of the relaxor lead magnoniobate (PMN) are explained within the classic Landau-Ginzburg-Devonshire theory. It turns out that a correction term proportional to the square of the polarization, P 0 2 , of polar nanoregions (PNRs) becomes relevant in relaxor ferroelectric…
We have examined time-averaged charges of the molecular donors around the phase boundary between the insulating, superconducting, and metal phases for ${\ensuremath{\beta}}^{\ensuremath{''}}$-type ET [$\mathrm{ET}=\text{bis}$-ethelenedithio-tetrathiafulvalene] salts with one (two) hole(s) per two (three) molecules by…
Sieving single atoms: The binding of single metal atoms to thin SiO2 films grown on Mo(112) depends on the size of the adatom. While Pd atoms are able to pass the nanopores in the silica network (see figure) and strongly bind to the Mo–SiO2 interface, Au atoms are too big for a penetration and interact only with line…
Half-Heusler alloys of the compositions X 1− a A a Ni 1− b B b Sn and X 1− a A a Co 1− b B b Sb (X = Hf,Zr) were synthesized with transition metals (A, B) substituted at the X and Ni/Co sites with the values of a and b between 0 and 0.15. Thermopower and electrical resistivity measurements from room temperature to 110…
SilconOxyCarboNitrides (SiCNO), made from thermal treatments of highly cross‐linked silicon, nitrogen, and oxygen containing polymers, exhibit intense luminescence that is broadly distributed over wavelengths of 500–800 nm. The intensity is sensitive to the composition, and especially to the heat‐treatment temperature…
Kolloidale Ag-Nanopartikel mit L-Glutathion-Beschichtung, die an Biman-Chromophore gebunden sind, wurden bezüglich ihrer absorptions- und fluoreszenzspektroskopischen Eigenschaften sowie ihres Circulardichroismus (CD) untersucht. Die Abhängigkeit der Verstärkung der Spektren durch resonante Ag-Oberflächenplasmonen von…
In situ monitoring of the transformation of B 4 C under electric field using Raman spectroscopy is reported. Application of electric fields up to 5000 V/cm leads to local segregation of carbon, indicated by the appearance of Raman D and G peaks. At low electric fields (<3000 V/cm) the segregated carbon is amorphous…
Abstract A novel montmorillonite (MMT)/polypyrrole (PPy) nanocomposite (MPN) with high electrical conductivity and thermal stability has been synthesized via in‐situ polymerization. The surface morphology, characterization, thermal stability, and electrical conductivity have been tested by scanning electron microscopy…
We present the calculations of the electronic structure and transport properties on the zinc-blende (ZB) and cinnabar phases of HgTe using the full-potential linearized augmented plane-wave method and the semiclassical Boltzmann theory. Our results show that n-doped cinnabar HgTe has a significant larger Seebeck coeff…
Abstract This paper describes the synthesis of narrowly distributed block copolymers consisting of a hole conducting triarylamine block and an anchor block via RAFT polymerization. The anchor block is thereby introduced via a reactive ester approach. Block copolymers with dopamine anchor groups bind to oxidic semicond…