Materials Literature
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The interest manifested, in recent decades, in biocomposites, is explained by the wide range of their potential applications in many fields. Special attention has been paid to carbon nanotubes, which exhibit superior electrical and mechanical properties that can improve the properties of biopolymer composites. The cur…
The deterioration behaviour of alwninwn alloy in 2 M hydrochloric acid solution in the presence of Chromolaena odorata extract was investigated using gasometric technique. Alwninwn alloy coupons of dimension 4 by 1 em were immersed in test solutions of rminhibited acid and also those containing extract concentrations…
The electrochemical behaviour of metalloporhyrins with 2,6-di-tert-butylphenol pendants 1-6 and 1a-6a was studied in CH 3 CN and their antioxidative activity was evaluated using a reaction with a stable radical 2,2'-diphenyl-1picrylhydrazyl (DPPH) monitored by CVA. Depending on the nature of metalloporhyrins various n…
It is well known that magnetic properties deteriorate in constructed cores due to conditions stressed by riveting and welding during manufacturing process, punching and sharing in cutting process of the electrical steel sheets and so on. Therefore, it is important to know the relationships between the stress and magne…
The inhibition of corrosion of 304 SS in 2 N HCl solutions by N -furfuryl -N ' phenyl thiourea (FPTU) has been investigated using potentiodynamic polarization techniques. The results obtained reveal that FPTU performs excellently as anodic inhibitor (IE> 93%) for 304 SS in HCl solution. The inhibitor functions through…
The kinetics of corrosion of iron in acid and base medium by weight loss method was investigated. The corrosion kinetics was studied in sulphuric acid, nitric acid and potassium hydroxide by weight loss method at different time intervals at 25.0 ° C to 40.0 ° C. The result showed that the corrosion rate vary with diff…
Eleven inbred silkworm lines (M-101, M-103, M-104, M-107, Pak-1, Pak-3, Pak-2, Pak-4, PFI-1, PFI-2, and S-1) were evaluated for various parameters of cocoon production under different temperature and relative humidity conditions (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>25</mml:mn><mm…
The electrical conductivities of complex hydrides Li2(BH4)(NH2) and Li4(BH4)(NH2)3 consisting of (BH4)− and (NH2)− anions are investigated focusing on their low melting temperatures (365 K for Li2(BH4)(NH2) and 490 K for Li4(BH4)(NH2)3). The two hydrides show lithium fast-ion conductivities of about 1×10−4 S·cm−1 at r…
The structure of nanostructured Langmuir layers of copper tetra-tert-butyltetrabenzotriazaporphyrin (CuThp t Bu 4 ) prepared using the solution in methylene chloride at different degrees of initial surface coverage (cedge from 10 to 51%) is determined. The significant change of the monolayer structure due to changes i…
A quaterthiophene-based boron dipyrromethene (Bodipy) dyad when dispersed uniformally in silicone rubber produces a thermoresponsive fluorescent material. The yellow fluorescence colour observed at low temperatures <200 °C changes to green upon heating the polymer. In contrast, the phenylene-based Bodipy dyad in silic…
Triblock copolymers consisting of a silk-based ((Gly-Ala)(3)Gly-Glu) repeat flanked by hydrophilic outer blocks self-assemble into micrometer long fibrils in response to a trigger. Since the exact mechanism of the fibril formation remains unclear, we employ a multiscale modelling approach in combination with rare even…
We propose a scaling law that explicitly correlates the macroscopic yield stress of weakly attractive nanoparticle networks with features of the microscopic aggregates that form the percolating gel. The proposed law correctly predicts experimental data obtained from a model colloidal system covering a wide range of pa…
Synthesis of poly(arylene ether sulfone)s with various numbers of arms by chain-growth polycondensation and physical gelation induced by self-assembly.
Upconverted emission from erbium ions in fluoride materials (glass and disordered crystal of the system CaF2-YF3) are observed in a wide spectral range (from the visible to the near infrared) under infrared excitation at 1.54 μm. In both cases, the upconverted emission in the near infrared (~1 μm) dominates the spectr…
This letter presents a high-throughput methodology to systematically study individual variables involved in atmospheric corrosion. Corrosion caused by droplets, representative of various atmospheric environments, was quantified in terms of volume loss as measured through optical profilometry. Measurements were sensiti…
We have experimentally carried out a Rayleigh scattering study of a high refractive index TiO(2) nanohybrid polymer. By employing the Rayleigh scattering technique with at least three different wavelengths, we can obtain the Rayleigh ratio of the TiO(2) nanohybrid polymer at each utilized wavelength. These measured Ra…
Electrochemical studies of a new Mn(III)(OH) complex clearly evidence that the presence of outer spheres water molecules is essential for the reversibility of MnIII/II and MnIV/IIIredox processes. In the MnIII/II case we found an isotope effect for D2O and 18OH2 allowing us to propose a mechanism for H2O/HO− ligand ex…
Effects of electron irradiation on the ferroelectric 180° in-plane nanostripe domain structure in a thin film prepared from a bulk single crystal of BaTiO3 by focused ion beam were studied. The domain structure transformed into a characteristic 90° in-plane nanostripe domain structure under intense electron irradiatio…
A series of prodrug analogues based on the established chemotherapy agent, 5-fluorouracil, have been prepared and characterized. C18 alkyl and alkenyl chains with increasing degree of unsaturation were attached to the N4 position of the 5-fluorocytosine (5-FC) base via a carbamate bond. Physicochemical characterizatio…
The syntheses of new ball-type dinuclear Si(IV)(CH(3)COO)(2) and Ti(IV)O phthalocyanines and two different mononuclear Zn(II) and Ti(IV)O phthalocyanines containing four 1,1'-binaphthyl-8,8'-diol substituents on the peripheral positions are described. The structures of these compounds were characterized using the elem…