Materials Literature
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1-Cyano-1,2-bis(biphenyl)ethene (CNBE) derivatives with a hexa(ethylene glycol) group as an amphiphilic side chain were synthesized and the self-assembling character and fluorescence behavior were investigated. The amphiphilic derivatives showed aggregate-induced enhanced emission (AIEE) in water and in the solid stat…
Composites of polystyrene (PS) and poly(ethylene‐co‐vinyl acetate) (EVA) with organically modified zirconium phosphate (OZrP) were prepared by melt blending. Their morphologies were assessed by X‐ray diffraction and transmission electron microscopy, while the thermal stability and flammability properties were characte…
Irradiation with high-energy photons (10.2–11.8 eV) was applied to small diamondoids isolated in solid rare gas matrices at low temperature. The photoproducts were traced via UV absorption spectroscopy. We found that upon ionization the smallest of these species lose a peripheral H atom to form a stable closed-shell c…
this study, considering the high sensitivity of developing fetal organs, different doses of iron oxide nanoparticles coated with dimercaptosuccinic acid (DMSA) were injected intraperitoneally to pregnant mice. The magnetic and structural properties of DMSA-coated nanoparticles were examined by Alternating Gradient-For…
Following the great discovery of the electrically conducting polymer, doped polyacetylene, which was honorably recognized in 2000 with the Nobel Prize in chemistry, conjugated molecules, i.e. organic semiconductors, have become an attractive class of active elements for various electronic or opto-electronic applicatio…
A quantum-mechanical method for estimating the cation distribution in spinel ferrites is proposed, by which the ionization energy of the cations and the Pauli repulsion energy is considered, together with the magnetic ordered energy and the tendency toward charge density balance. Using this method, not only can the di…
Abstract The effect of corona treatment (CT) on the adhesion at the metal–polymer interface was studied. Metal/polymer/metal laminates were manufactured by the laboratory roll‐bonding process with preliminary corona surface treatment of the polymer core: a polyethylene and polypropylene sheet as well as steel sheet. I…
A simple and versatile approach is proposed to use the LbL-assembled polypeptide macromolecular assemblies as mediating agents and templates for directed growth of gold nanoparticles and biomimetic silica mineralization, allowing the synthesis of polypeptide/silica and polypeptide/gold nanoparticle/silica composite ma…
Abstract Micro‐structural investigation of polyurethanes (PUs) with different chain structure has been reported. Polarized optical microscopic studies of aliphatic polyurethanes demonstrate the development of micro clusters with increasing hard segment content (HSC) and crystallization. DSC and XRD results support the…
Equations of fast phase transitions, in which the phase boundaries move with velocities comparable with the atomic diffusion speed or with the speed of local structural relaxation, are analyzed. These equations have a singular perturbation due to the second derivative of the order parameter with respect to time, which…
Quantum cutting (QC) is a promising approach for enhancing the energy conversion efficiency of solar cells since it allows for conversion of one ultraviolet photon from the sun into two near-infrared photons with energy comparable to the band gap of silicon solar cells. We find that QC can occur by cooperative energy…
The phase transition behavior of poly(butylene adipate) (PBA) crystals in its blends with poly(vinyl phenol) (PVPh) was investigated by infrared (IR) spectroscopy and X-ray diffraction (XRD). The IR and XRD studies indicate that the hydrogen bonding between the C═O group of PBA and the OH group of PVPh developed in th…
The synthesis and characterization of acetylglucosamine-displaying microspheres consisting of poly(divinylbenzene) (PDVB) cores onto which chains of linear and branched glycopolymer chains were grafted via atom transfer radical polymerization (ATRP) and self-condensing vinyl copolymerization (SCVCP), respectively, are…
Dimethyl sulfoxide (DMSO) is a well-known organic solvent that can be used for biological applications. DMSO is miscible with water, and it is very common that the two solvents are mixed for some applications. It is important to detect water in DMSO, and this has been done using the luminescence decay lifetimes from E…
Novel polyphosphazenes containing various vitamin substituents were synthesized and characterized, and their sensitivity to hydrolysis and pH behavior was investigated. Vitamins L 1, E, and B 6 were used because of their biocompatibility, their importance in a variety of biological functions, and their potential to in…
A series of mesogen-jacketed liquid crystalline polymers, poly{2,5-bis[(4-alkoxyphenyl)aminocarbonyl]styrene} (P-C m, where m is the number of carbon atoms in the alkoxy groups, and m = 1, 4, 8, 12), with an amide core and flexible tails of varying lengths on the two ends in the side chain were designed and successful…
Eu doped rare-earth orthovanadates are known to be good red phosphor materials. In particular, LaVO4:Eu is a promising candidate due to the low Eu-site point symmetry, and thus high dipole transition probability within Judd–Ofelt theory. However, the low solubility limit (<3 mol %) of Eu in LaVO4 prevents its e…
We present bioinspired artificial compound eye surface structures that consist of antireflective subwavelength structures (SWSs) on hexagonally patterned microstructures (MSs), for the purpose of efficient light escaping inside light-emitting materials/devices. Theoretical understanding and geometrical optimization of…
The electric field distribution of degraded dielectric layers in multilayer ceramic capacitors (MLCCs) was investigated by Kelvin probe force microscopy (KFM) to clarify the insulation degradation mechanism in MLCCs. For the degraded dielectric layers, the electric field was found to be concentrated near the anodes. T…
Nitrogen (N)-doped graphitic layers were uniformly synthesized as shells on pregrown Si nanowires by chemical vapor deposition. The N content (≤10 atomic %) and thickness (≤50 nm) of the graphitic layers were finely controlled by adjusting the deposition conditions. X-ray photoelectron spectroscopy revealed that pyrid…