Materials Literature
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Abstract Porous poly(vinyl ester) resin monolithic supports were first prepared by radical polymerization of the continuous phase of oil in water high‐internal‐phase emulsions. Vinyl ester (VE) resin was used as the monomer, ethylene glycol dimethacrylate was used as a crosslinker, and poloxamer 127 was used as the em…
Cr4+-doped transparent β-Zn2SiO4 glass-ceramics were prepared by heat treatment on the as-made glasses. It was confirmed from the absorption spectra that Cr4+-doped β-Zn2SiO4 glass-ceramics are indeed a low-field system. The broadband infrared emission centering at 1342 nm with the full width at half-maxim…
Abstract The filler fraction, particle size and temperature dependence of thermal diffusivity in polypropylene‐iron silicon composites were examined by laser flash method. Results show that raising the filler content raises the thermal diffusivity of the composite material only slightly. Nevertheless, the higher the f…
Abstract Polyaniline nanoparticles have been synthesized through simple micelle technique and then grafted it with silanized silica gel to develop a novel hybrid material. The nanoparticles are characterized by UV‐Vis, TEM, CV, SEM, TGA, DTG, and DSC. Silanization and grafting reactions are evaluated by FTIR and chemi…
One of the approaches for micro/nanoscale heat transfer in semiconductors and dielectric materials is to use the Boltzmann transport equation, which reduces to the equation of phonon radiative transfer under the relaxation time approximation. Transfer and generation of entropy are processes inherently associated with…
Clean, pure Pd is a dehydrogenation catalyst and will crack many organic molecules interacting with it down to basic components, generally carbon, CO, and hydrogen. However, when the surface is passivated by adsorption in sufficient amount, the balance of reactivity changes, producing a more gentle catalytic material,…
Room‐temperature microplastic phenomena in oxide glasses are attributed to the combined effects of densification and shear flow, the origin of which, however, remains speculative. Using atomic force microscopy imaging to analyze the imprint topology created by microindentation in mixed alkali alumino‐phosphate glasses…
Abstract Throughout the past ten years, comprehensive understanding of fundamental and applied research has focused on functional coating and specifically on microencapsulaion. In this study, weak polycation poly(allylamine hydrochloride) and strong polyanion poly(sodium styrene sulfonate) were used for fabrication of…
In this work, a rapid and efficient one-pot method for the synthesis of indeno[1,2-b]quinoline-7-one derivatives by condensation of 1-naphthylamine, 1,3-indanedione, and different aldehydes in the presence of H6P2W18O62·18H2O as a green and reusable catalyst in refluxing acetic acid is described.
Abstract We examine stochastic computer simulations of the Leibler‐Ohta‐Kawasaki (LOK) phase‐field model 1 , 2 and demonstrate that long‐wavelength line edge roughness (LER) and line width roughness (LWR) in a lamellar diblock copolymer resist depend monotonically on quench depth and noise strength, and that the LER a…
Abstract Supramolecular conjugation techniques have been developed to produce novel nanosized systems by assembling materials with diverse physicochemical and biological features. These techniques have been adapted to obtain innovative bioconjugates to deliver drugs with poor biopharmaceutical properties and nano‐devi…
Homoleptic d(8)-metal organothiolates and phenylselenolates [M(EC(6)H(5))(2)](infinity) (E=S, M=Pt 1, M=Pd 2, M=Ni 5; E=Se, M=Pt 3, M=Pd 4) were prepared as crystalline solids under solvothermal conditions. Their structures were solved using powder X-ray diffraction data. In each case, the EC(6)H(5) (E=S, Se) ligand b…
Abstract The title molecule, 2‐(4‐chlorophenyl)‐1‐methyl‐1 H ‐benzo[ d ]imidazole (C 14 H 11 ClN 2 ), was prepared and characterized by 1 H NMR, 13 C NMR, IR, and single‐crystal X‐ray diffraction. The molecular geometry, vibrational frequencies, and gauge including atomic orbital (GIAO) 1 H and 13 C NMR chemical shift…
Coupling between localized surface plasmon resonance (LSPR) of metal nanoparticles and molecular excitons in core/shell hybrid nanostructures attracts increasing attention. Emphasis has been on fine-tuning exciton−plasmon coupling by controlling the LSPR of metal nanoparticles, while functionality of the intact excito…
We investigate the tight packing of nematic polymers inside a confining hard sphere. We model the polymer via the continuum Frank elastic free energy augmented by a simple density dependent part as well as by taking proper care of the connectivity of the polymer chains when compared with simple nematics. The free ener…
By tracking the dynamics of the emitting field of single CdSe/ZnS core−shell quantum dots (QDs), the defocused image (DI), i.e., emission pattern of some QDs was observed to rotate after blinking- off periods in our previous paper. To gain insight into this phenomenon, here we have extended the observation time to 350…
The effects of quadrupolar order on structural, magnetic, and dielectric properties have been investigated for ${\text{DyVO}}_{4}$. Our detailed structure analysis demonstrated that the cooperative Jahn-Teller effect associated with $4f$ ferroquadrupolar order causes the displacement of oxygen ions surrounding a Dy io…
Abstract Fluorescent cellulose triacetate (CTA) fibers were prepared by electrospinning solutions of CTA dissolved in an 8 : 2 v/v cosolvent system of methylene chloride (MC) and methanol (MeOH) which contained CdSe/ZnS quantum dots (QDs). The relatively low loading of colloidal nanoparticles was sufficient to impart…
Two series of BaHfO 3 powders activated with Eu 3+ ions were prepared with a ceramic method. By stoichiometric variations, the dopant was forced to enter either Ba 2+ or Hf(IV) sites. X-ray diffraction (XRD) analysis proved that Eu 3+ ions preferred substitution of Hf(IV) in BaHfO 3, while replacement of Ba 2+ encount…
Abstract The intrinsic viscosities, [η], of nine cellulose samples, with molar masses from 50 × 10 3 to 1 390 × 10 3 were determined in the solvents NMMO*H 2 O ( N ‐methyl morpholin N ‐oxide hydrate) at 80°C and in cuen (copper II‐ethlenediamine) at 25°C. The evaluation of these results with respect to the Kuhn–Mark–H…