Materials Literature
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The effects of solvent dipolarity/polarizability and solvent-solute hydrogen bonding on the photophysical properties of the antineoplastic drug lomustine were analysed by means of the linear solvation energy relationship (LSER) concept proposed by Kamlet and Taft. The LSER method enabled the overall solvent effects to…
Cu‐ and V‐doped BNKT10‐based piezoelectric ceramics with up to 0.5 at.% dopant concentration were synthesized and displayed more homogeneous grain growth compared to undoped BNKT10 ceramics. The defect chemistry and defect structure, studied by X‐ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance…
Gold (Au) nanoparticles-decorated poly( o-phenylenediamine) (PoPD@Au) hollow microspheres were successfully synthesized by a simple two-step process without any other templates or additives. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, Rama…
Flow-aligned mesoporous silica monoliths incorporating nanometer-sized cylindrical pores serve as models for materials with applications in chemical separations and catalysis. In many such systems, it is assumed that incorporated analytes or reagents are confined to and travel along the one-dimensional (1D) pores. Ani…
Abstract A small library of ureas and related compounds was synthesized and examined by scanning electron microscopy (SEM), single‐crystal X‐ray diffraction, powder X‐ray (pXRD), and polarized optical microscopy (POM) techniques in order to elucidate the factors controlling their self‐assembly in the solid state. Insp…
Zinc-aluminium layered double oxide (Zn-Al-LDO) catalysts derived from layered double hydroxides (LDHs) were prepared and used for the catalytic fast pyrolysis of cellulose to selectively produce 1-hydroxy-3,6dioxabicyclo[3.2.1]octan-2-one (LAC), which is a valuable anhydrosugar derivative. Analytical pyrolysis-gas ch…
Abstract Highly acidic SBA‐15 with different pore diameters has been prepared by functionalizing the mesoporous walls with different amounts of triflic acid (TFA). The structure of the SBA‐15 before and after the functionalization with TFA was investigated by powder X‐ray diffraction and nitrogen adsorption isotherms.…
In this work Y3Ga5O12 doped with 8.7 mol% Cr3+ (YGG:Cr) far-red phosphor pellets calcined at 1000, 1200, 1300, and 1400 °C temperatures were synthesized by a simple and low cost sol–gel method. The YGG:Cr pellets were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM) and the luminescent…
B 4 C and B 4 C-ZrB 2 (Zr -3-5 wt.%) ceramic materials were obtained by the method of hot pressing at temperature range 2,050-2,140 C and 34-40 MPa pressure, and subject to further thermal treatment at 1,800 C. Physical and mechanical properties of the above composite, the effect of ZrB 2 on the process parameters of…
Multiblock copolymers consisting of poly(ether sulfone) and poly(tetrahydrofuran) (PTHF) as hard and soft segments, respectively, were synthesized by post-polymerization of poly(ether sulfone) and PTHF oligomers via the Williamson ether synthesis. Hydroxy-terminated polysulfone oligomers composed of 4,4′-dihydroxydiph…
Micellar and vesicular aggregates were achieved in situ by supramolecular polymerization of π-conjugated AB2 monomers with dibenzo-24-crown-8 and dibenzylammonium groups.
The conformations of five doubly neo-confused porphyrin structures and fifty-four neo-confused N-confused porphyrin (neo-C-NCP) tautomers were minimized using DFT-B3LYP/6-311++G(d,p). The relative stabilities of the tautomers for each series were computed using M06-2X and B3LYP-D functionals, and the bond lengths and…
Preforming simulation for structural composite processing can significantly assist in the development of forming tools, prediction of manufacturing issues, optimization of process parameters and structural design analysis. The present study is aimed at investigating the influence of some important parameters in compos…
We present a facile strategy to prepare grape-like silica-based hierarchical porous interlocked microcapsules (HPIMs) by polystyrene colloidal crystals templates, whose structure is the subtle integration of open mouthed structure, hierarchical porous nanostructure and interlocked architecture. HPIMs are fabricated by…
Polyhydroxyalkanoates (PHAs) are biopolyesters produced by bacteria as intracellular granules under metabolic stress conditions. Many carbon sources such as alkanes, alkenes, alcohols, sugars, fatty acids can be used as feedstock and thus a wide variety of polyesters and monomer units can be potentially synthetized. T…
A first-principles density functional theory (DFT) study of [Formula: see text]-(BEDT-TTF)2X molecular conductors with X = I3, CsCo(SCN)4 (ambient pressure, 7.5 kbar and 10 kbar), CsZn(SCN)4, TlCo(SCN)4, RbCo(SCN)4 and RbZn(SCN)4 (220 K and 90 K) is reported. It is shown that these salts exhibit three different types…
This paper investigated the performance of coconut fibre particles as a filler material and highdensity polyethylene as matrix in polymer matrix composites (PMC). Three different particle sizes of the filler material were used in formulating the composite samples and the concentration of the filler material varied up…
A novel bismaleimide matrix resin of amino-polythioetherimide (PTEI-N)/4,4′-bismaleimidodiphenyl methane (BDM)/2,2′-diallylbisphenol A (BA) was prepared. Mechanical measurements, dynamic thermomechanical analysis, thermogravimetric analysis (TGA), and microanalyses were conducted to assess the mechanical properties, t…
Purpose – The purpose of this paper is to develop an eco-friendly corrosion inhibitor for mild steel in 1 M HCl. Design/methodology/approach – A pharmaceutical drug acetyl G was investigated for its corrosion inhibition efficiency using weight loss method, potentiodynamic polarisation and electrochemical impedance spe…
The Paton Welding Journal, 2015, №10. International Scientific-Technical and Production Journal «The Paton Welding Journal» «The Paton Welding Journal» has been published monthly since 2000 in English, ISSN 0957-798X. «The Paton Welding Journal» is a cover-to-cover English translation of the «Avtomaticheskaya Svarka»…