Materials Literature
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Abstract The interaction of 8‐hydroxy‐1,3,6‐pyrenetrisulfonic acid (HPTS) with chitosan (CS) is investigated by studying the changes that HPTS produces on the properties of CS. HPTS specifically binds to the free amino groups of CS modifying its zeta potential, isoelectric point, water solubility, aggregation state, a…
Boron-doped high surface area carbon is shown to have unique chemical and structural properties that are advantageous for hydrogen storage. High surface area boron-doped carbon sorbents were produced by chemical vapor deposition of a boron-doped carbon (BC X ) layer onto CM-Tec activated carbon. Photoelectron spectros…
Rapid, simple, catalyst-free, room-temperature sonochemical fabrication of long (up to 30 μm), ultra-thin (about 20 nm), crystalline gold nanowires on nanoporous anodic alumina membranes is reported. It is demonstrated that the nanowires nucleate and grow inside the nanosized pores and then form a dense network on the…
The X-ray CT technology previously developed by JAEA was upgraded. The shape of the X-ray source beam was changed from a circular shape to an elliptical one and the collimator slit width was decreased from 0.3 to 0.1 mm. The X-ray detector was improved by changing a CdWO4 scintillator to a highly sensitive silicon sem…
Polycarbonates (PCs) are a particular group of thermo-plastic polymers that contain carbonate groups (-O-CO-O-). PCs are nontoxic and temperature resistant with high mechanical strength, low water absorption, and good optical properties, including transparency. However, they easily dis-solve in organic solvents (i.e.,…
We synthesized rigid–flexible amphiphilic molecules consisting of an aromatic block based on a pyrene dimer and a hydrophilic oligoether dendron. The molecules self-assemble into spherical micelles with a diameter of ∼12 nm in an aqueous solution. Notably, these spherical objects could be polymerized through charge tr…
In this research, we have investigated the effects of addition of different percentages of nanoclay on the decay resistance and physicomechanical properties of natural fiber-reinforced plastic composites against white-rot fungi ( Trametes versicolor). To meet this objective, the beech wood flour was mixed with polypro…
We report a possible stable structure of graphene on basis of the first principle calculation. This possible two-dimensional (2D) structure consists of pentagons and octagons (PO), and likely be formed from ordinary graphene by periodically inserting specific defects. Its density is 2.78 Atom/Å2 and the cohesive energ…
Abstract The new spiroffite Mg 2 Te 3 O 8 ( 1 ) was prepared by hydrothemal methods and structurally characterized by single‐crystal X‐ray diffraction analysis. Compound 1 crystallizes in the space group C 2/ c of the monoclinic system with two formula units in a cell: a = 12.6030(7), b = 5.2254(3), c = 11.6331(7) Å,…
A novel symmetrical alkylsulfonyl-substituted poly(phenylenevinylene) derivative, poly [2,5-bis-(2'-ethylhexylsulfonyl)-1,4-phenylene)vinylene] (SO2EH-PPV), was synthesized via palladium-catalyzed Stille coupling, and its electronic and optical properties were investigated. The novel PPV derivative was characterized b…
Supramolecular assemblies of anilinium (Ani(+)) and fluoroanilinium derivatives (FAni(+)) with [18]crown-6 were introduced into electrically conducting [Ni(dmit)(2)] crystals (dmit(2-) is 2-thioxo-1,3-dithiole-4,5-dithiolate). The crystal structures, electrical conductivities, and magnetic susceptibilities of four new…
Hybrid composites of polyethylene/wood flour/nanoclay with different concentrations of nanoclay were fabricated using melt compounding followed by injection molding. Composites were weathered in a xenon-arc type accelerated weathering apparatus for 2000 h. Physical properties of the composites were evaluated by colori…
The behavior of a multiwalled carbon nanotube functionalized by magnetic nanoparticles through triethylene glycol chains is studied using molecular dynamics simulations. Particular attention is paid to the effect of magnetic anisotropy of nanoparticles which significantly affects the behavior of the system under an ex…
A novel phosphorus–nitrogen containing dendrimer DPC–PAMAM has been obtained by the functionalization of amine terminated poly(amidoamine) (PAMAM) with diphenyl phosphoryl chloride (DPC), which is used to modify polyurethane (PU) as an intumescent flame retardant. The gel-phase network, made up of a number of nanofibe…
Vinorelbine tartrate (VLBT), as a kind of high hydrophilic and temperature-induced degradation drug, was prepared into nanoparticles by a desolvation procedure. Bovine serum albumin (BSA), as a drug carrier, was stabilized by chemical cross-linking with glutaraldehyde. Firstly, the optimization process of preparing VL…
Solid-state polymerization (SSP) of semiaromatic copolyamides composed of nylon-4,T and nylon-4,6 in different molar ratios were investigated using a mixture of nitrogen and steam as the sweep fluid at reaction temperatures in the range of 220–260 °C. Prepolymers having different nylon-4,T contents (28.2, 37.9, and 47…
Dinuclear cobalt-1,10-phenanthroline (1) and 2,2'-bipyridine (2) complexes bridged by 1,8-bis(2,2':6',2''-terpyrid-4'-yl)anthracene (btpyan) were prepared. Both of the complexes selectively catalysed the electrochemical four-electron reduction of dioxygen to H2O without the generation of H2O2 as a two-electron reducti…
We demonstrated the growth of carbon nanocoils (CNCs) via chemical vapor deposition (CVD) using Au and K metals as the catalysts to assist the thermal decomposition of C(2)H(2). Typical CNCs (wire diameter: 50-80 nm, coil diameter: 110-140 nm, pitch: 100-200 nm, tens of micrometers), identified as amorphous coiled car…
A one-dimensional model for a shape memory alloy is proposed. It provides a simplified description of the pseudo-elastic regime, where stress-induced transitions from austenitic to oriented martensitic phases occurs. The stress-strain evolution is ruled by a bilinear rate-independent o.d.e. which also accounts for the…
First-principles calculations based on density functional theory were carried out to investigate the formation and migration of native defects in LiNH(2)BH(3). The structural properties and formation energies of H, Li, N and B related defects in various charge states were examined. Our analysis showed that the dominan…