Materials Literature
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Nano-B 4 C powder whose surface was coated with polyvinylalcohol (PVA) was prepared by using a ball milling mechanical activation process. As-prepared powders exhibit the structure of PVA layer on the surface of nano-sized B 4 C and the size of the produced core/shell structured nano-B 4 C/PVA particles was in the ran…
Abstract N,N ‐bis(2‐hydroxyethyl)formamide (BHF) was synthesized efficiently and used as a new plasticizer for pea starch to prepare thermoplastic starch (TPS). The hydrogen bond interaction between BHF and pea starch was proven by Fourier‐transform infrared (FT‐IR) spectroscopy. As detected by scanning electron micro…
The relationship between the physiological state of fungi and the response of their functional system to metals is not known, limiting the use of fungal enzymes as tools for assessing metal ecotoxicity in terrestrial ecosystems. The present study attempts to establish how the development phases modulate the secretion…
Phytoplankton species composition and diversity, geographic distribution, biomass and dominance, and their driving variables were investigated in a set of high altitude (alpine) and high latitude (subarctic) lakes located in the Alps, the Rila Mountains and in Finnish Lapland. The 138 lakes, extensively surveyed durin…
Abstract The adhesion of some propylene–ethylene (P/E) copolymers to polypropylene (PP) and high density polyethylene (HDPE) was studied in order to compare them with other olefin copolymers as compatibilizers for PP/HDPE blends. A one‐dimensional model of the compatibilized blends was fabricated by layer‐multiplying…
The role of seed extract of Cyamopsis tetragonaloba on corrosion mitigation of mild steel in 1 M HCl has been investigated by weight loss method and potentiodynamic polarization technique. Maximum inhibition efficiency of Cyamopsis tetragonaloba in 1 M HCl was found to be 92%. Experimental results were fitted into Lan…
Abstract We have successfully synthesized optically active organoboron aminoquinolate‐based coordination polymers bearing the chiral side chain derived from L ‐alanine, and studied their optical behavior by UV–vis and photoluminescence spectroscopies. Higher absolute quantum yields (Φ F ) of the obtained polymers, mea…
Abstract Novel cross-linked fluoroalkyl end-capped trimethoxyvinylsilane oligomeric nanoparticles [RF–(VM-SiO2)n–RF]-encapsulated 1,1′-bi(2-naphthol) (BINOL) were prepared by the hydrolysis of fluoroalkyl end-capped trimethoxyvinylsilane oligomer in the presence of BINOL under alkaline conditions. RF–(VM-SiO2)n–RF-enc…
The crystal structure of a polycrystalline knorringite, Mg 3 (Cr 0.8 Mg 0.1 Si 0.1 ) 2 (SiO 4 ) 3 , synthesized at 11 GPa and T = 1500 °C in a multi-anvil press, has been refined from high-resolution synchrotron X-ray powder diffraction data. The structure is cubic, space group Ia3̅d, a = 11.5935(1) Å, V = 1558.27(4)…
We present a coarse-grained model for the dynamics of living polymer solutions which explicitly includes solvent hydrodynamics. We show that lamellar and columnar structures emerge when the solution is subjected to simple shear. In the absence of shear, the model predicts a fluid–gel transition as a function of polyme…
Abstract Acrylonitrile‐butadiene‐styrene (ABS) resins with various rubber contents were prepared by applying nickel catalyzed high‐ cis polybutadiene rubber (BR9004) as toughening agent via bulk polymerization. The influence of rubber content and its characteristics on the morphology, mechanical properties, and fractu…
Abstract Carbon nanotubes with different functional groups were prepared and then incorporated into the poly(2,6‐dimethyl‐1,4‐phenylene oxide)/polyamide 6 (PPO/PA6) blend via melt blending. The influence of different carbon nanotubes on the morphology and properties of the blend was studied. The results show that addi…
The so-called “simple salt approximation” is used to calculate the lattice energies of double salts (compounds that contain two or more different types of ions). Enthalpies and Gibbs energies of dissolution based upon these lattice energies are then used to estimate the solubilities of hydroxyl sulfates, hydroxyl carb…
Molecular dynamics simulations are performed on a Lennard Jones binary mixture confined in off lattice matrices of soft spheres with increasing radius. We focus on dynamics upon supercooling and in particular on testing the mode coupling theory properties of the confined mixture. Parameters of mode coupling theory in…
Fruit salad nanoparticles: A simple biomodulation approach has been developed using extracts of apple (Malus domestica), lemon (Citrus limonia), tomato (Lycopersicon esculentum), and banana peel (Musa cavendish) to generate various nanostructures of gold, for example, spherical, marigold-like, and triangular plates. T…
Abstract The medical polyurethane (PU) film was grafted with poly(acrylic acid) (PAA) to improve the hydrophilic and lubricious properties. The influences of pretreatment by ozone or potassium peroxydisulfate on themorphologies of PU films and grafting results were systematically investigated. The grafted PU films wer…
The frictional and wear performance of a machined component depends strongly on the surface properties. A white layer on the machining surface is often produced at abusive machining conditions. However, the effect of white layer on frictional and wear performance has received little attention. Dry and lubricated slidi…
In this work, we report on a new type of superhydrophobic material consisting of supported organic nanowires prepared by vacuum deposition. Different intensely colored surfaces with water contact angles as high as 180 degrees can be fabricated depending on the composition, morphology, and density of the nanowires. The…
The achiral compound 2-(2-naphthylthio or 2-quinolinethio)-3-methylcyclohexen-1-one was found to crystallize in the chiral space group P212121. In one crystal, only one-handedness was found. In particular, although 2-(2-naphthylthio)-3-methylcyclohexen-1-one showed conformational polymorphism, both polymorphs were chi…
The calculations of local and global properties of two-band superconductors have been presented with particular attention paid to the role of the interorbital scattering of pairs. The properties of such superconductors are very different from a single-band or typical two-band systems with dominant intraband pairing in…