Materials Literature
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In this work, poly(para-dioxanone) (PPDO) was mixed with 1% (by weight) calcium carbonate (CaCO(3)), beta-tricalcium phosphate (beta-TCP), or calcium sulphate dihydrate (CSD) by solution co-precipitation. Samples were compression molded into bars using a platen-vulcanizing press. The morphology, thermal and mechanical…
Abstract Formation of crystalline bacterial biofilms (encrustations) on urological implants remains a major complication in patient care. Recently, it was shown that amorphous carbon (a‐C:H) coatings deposited on polyurethane (PU) stents provide a distinct reduction in biofilm formation with an effect more pronounced…
Abstract The second order nonlinear optical (NLO) response of the new complexes [Ir(bzq) 2 (5‐R‐1,10‐phen)][Y] (bzq = cyclometallated benzo[h]quinoline; phen = phenanthroline, R = Me, NO 2 ; Y = PF 6 , C 12 H 25 SO 3 ) and [Ir(bzq) 2 (4‐R,7‐R‐1,10‐phen)][Y] (R = Me, Ph) have been investigated experimentally by the Ele…
Abstract A convenient two‐step approach for the synthesis of ferrocenyl‐functionalized long chain branched polydienes, based on both butadiene and isoprene, respectively, is presented. Classical living anionic polymerization was used to synthesize different AB n type poly(diene) macromonomers with moderate molecular w…
Periodically arranged metallic resonators can produce a negative permeability medium. However, the resonant response weakens at extreme regimes under certain conditions, which is the major problem of obtaining a negative index in the visible regime. We report that by decreasing the operation temperature, the metal con…
A facile route to synthesize Cu 7 S 4 hollow hexagonal-like nanoparticles using Cu 2 O nanocubes as sacrificial templates at room temperature was developed. According to the transmission electron microscopy and field emission scanning electron microscopy observations, a formation mechanism of the Cu 7 S 4 hollow struc…
Abstract Electrochemical noise (EN) technique was employed to study the corrosion behaviors of the X70 pipeline steel in the Xinjiang Ku'erle saline soil (moisture content 1.04%) during the initial corrosion period (0–7 days). The obtained EN data were analyzed by principal component analysis (PCA), hierarchical agglo…
We consider the extension of optical metamaterials to matter waves and then the down scaling of metaoptics to nanometric wavelengths. We show that the generic property of pulsed comoving magnetic fields allows us to fashion the wave-number dependence of the atomic phase shift. It can be used to produce a transient neg…
Abstract A new series of symmetrically substituted bulky PPV‐copolymers based on poly(bis‐2,5‐(2‐ethylhexyloxy)‐1,4‐phenylenevinylene) ( BEH‐PPV ) bearing tricyclodecane (TCD) pendants were synthesized to study the effect of chain aggregation in the π‐conjugated polymer backbone. The composition of the copolymers was…
Abstract The aim of this work is to investigate the effects of elongational flow on the nanoscale arrangement of the silicate inside polyamide‐based nanocomposites. Hybrids, at different loadings of a commercial organoclay, were produced by melt compounding using two polyamide matrices, a nylon‐6, and a copolyamide wi…
Abstract The barrier and self‐healing abilities of a corrosion‐protective coating with a fluoro‐organic compound for zinc was investigated. Several types of fluoro‐organic compounds, having different terminal groups and various numbers of carbon atoms, were coated on a pure zinc plate by dip coating. A fluoro‐organic…
Abstract An azo prepolymer (TAZ) was synthesized by reaction between Disperse Orange‐3 (DO3) and diglycidyl ether of bisphenol A (DGEBA). Selected amounts of TAZ were blended with DGEBA and cured with an aliphatic diamine, either meta ‐xilylenediamine (MXDA) or polyetheramines (Jeffamine D series). The photoinduced an…
The paper presents a proof of the convergence for an iterative scheme of fractional steps type associated to the phase-field transition system (a nonlinear parabolic system) with non-homogeneous Cauchy–Neumann boundary conditions. The advantage of such method consists in simplifying the numerical computation necessary…
Abstract Highly discriminating cycloaddition : An unexpected [2+2] cycloaddition in self‐assembled cation OPV‐monolayered vesicles is described. Remarkably, the photochemical reaction is chemo‐, regio‐, and stereoselective, which is most likely the result of the well‐controlled supramolecular organization of the OPV u…
The morphological changes from tubules to large hollow spheres to (micelle-sized) small hollow-spherical silica were realized by polystyrene-block-poly(vinylpyridine) (PS-b-PVP) block copolymer micelle templates by controlling the intermolecular interactions with the corona chains. PS-b-PVP with weak intermolecular in…
A model has been created based on scattering that describes the λ<sup>-2</sup> dependence of the extinction in bulk samples of CVD ZnS. The model is a version of surface scattering from internal surfaces of layers with different refractive index. The form of the model was inspired by observation of a lamellar n…
Abstract Thin films of a‐Ga x Se 1–x (x = 0.4, 0.5, 0.6) are prepared by vacuum evaporation technique onto well‐cleaned glass substrates. The transmittances of the films are measured at various temperature ranges (100 K‐400 K) in the wavelength range of 400‐1100 nm. Optical absorption obeyed the non‐direct transition…
Low-temperature nitrogen adsorption in hexagonal pores and equivalent cylindrical pores is analyzed using nonlocal density functional theory extended to amorphous solids (NLDFT-AS). It is found that, despite significant difference of the density distribution over the cross-section of the pore, the capillary condensati…
The work is dedicated to investigation of the luminescent properties of UV-emitting single crystalline films (SCF) based on the Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:La and Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Pr garnet and LuAlO<sub>3</sub>:Ce perovskite compounds grown by liquid phase epitaxy method from…
The title compound, {[Mn(C(10)H(28)N(6))][Sn(3)Se(7)]}(n), consists of anionic (infinity){[Sn(3)Se(7)](2-)} layers interspersed by [Mn(peha)](2+) complex cations (peha is pentaethylenehexamine). Pseudocubic (Sn(3)Se(4)) cluster units within each layer are held together to form a 6(3) net with a hole size of 8.74 x 13.…