Materials Literature
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SUMMARY A series of organo phosphorus flame retardants (FRs) based on aromatic phosphate and cyclic phosphate were synthesized in an attempt to develop an efficient FR for polycarbonate. Their successful synthesis was confirmed by FT‐IR and 1 H and 31 P NMR. Their thermal stability and flame retarding efficiency as a…
The heat capacity of gadolinium orthophosphate (GdPO4) measured in the temperature range 11.15–344.11 K by adiabatic calorimetry and available literature data were used to calculate its thermodynamic functions at 0–1600 K. At 298.15 K, these functions are as follows: C 0 (298.15 K) = 101.85 ± 0.05 J K−1 mol−1, S 0(298…
CONTEXT: Antidepressant effects of various plants are generally attributed to their anti-inflammation and antioxidant activities. Cynanchum auriculatum Royle ex Wight (Asclepiadaceae) is a traditional medicinal plant in China and India used for immunological regulation, anti-inflammation, and antioxidant purposes. How…
In this work, we develop a nonlinear magnetoelectric model for self-sensing actuation behavior of a cantilever structure composed of laminate piezoelectric and magnetostrictive layers. The model developed accounts for the nonlinear response of the magnetostrictive layer, the linear response of the piezoelectric layer…
A type of block poly(ester-urethane)s (abbreviated as PUBC) based on bacterial copolyester poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P3/4HB) and biodegradable poly(ε-caprolactone) (PCL) was synthesized by melting polymerization using 1,6-hexamethylene diisocyanate (HDI) as the coupling agent, with different 3HB, 4…
Members of the 2-hydroxyacyl-CoA dehydratase enzyme family catalyze the β,α-dehydration of various CoA-esters in the fermentation of amino acids by clostridia. Abstraction of the nonacidic β-proton of the 2-hydroxyacyl-CoA compounds is achieved by the reductive generation of ketyl radicals on the substrate, which is i…
Material compliance has been shown to be a predictor of vascular graft patency and as such is a critical parameter when designing new materials. Although ex vivo derived materials have been clinically successful in a number of applications their mechanical properties are a direct function of the original vessel and ar…
Cellulose acetate butyrate nanofibers were prepared separately by two electrospinning techniques; a needleless electrospinning using a disc as spinneret and a rotary drum as collector and a conventional needle electrospinning using a rotary drum as collector. Compared to the needle-electrospun nanofibers, the disc-ele…
In this work first principles calculations are performed to study the elastic moduli and energy band gap of PbTe under equilibrium and strained condition. Hydrostatic pressures are applied to bulk PbTe in rocksalt structure, and the results show that as the pressure increases, the bulk modulus, shear modulus and the C…
Schiff base monomers [2-(4-bromobenzylideneamino)phenol and 2-(4-bromobenzylideneamino)-5-methylphenol] were synthesized by the condensation reaction of 4-bromobenzaldehyde with aromatic aminophenols. Then, the monomers were converted to their polyphenol derivatives by oxidative polycondensation reactions (OP) in an a…
In response to increasing awareness of the environment and energy, the fields of application for new types of plant fiber functional materials are expanding. In this study, different weight proportions of coir fiber were added to wood particle debris to produce hybrid boards. The two forms of coir fiber used were rand…
Folate-conjugated and thermo-responsive poly((N-isopropylacrylamide)-co- acrylamide-co-(octadecyl acrylate)-co-(folate-(polyethylene glycol)-(acrylic acid))) (P(NIPA-co-AAm-co-ODA-co-FPA)) micelles with mean diameter of about 60 nm and lower critical solution temperature (LCST) of about 39°C were synthesized by free r…
Numerous zinc oxide (ZnO) nanomaterials, with unique physical and chemical properties, have recently been synthesised by various methods. In this study, a hydrothermal method was developed to synthesise ZnO nanomaterials with different morphologies on indium doped tin oxide (ITO), and the growth mechanism was discusse…
The structural and ferroelectric domain variants of highly-strained BiFeO3 films grown on vicinal LaSrAlO4 substrates were studied by piezoelectric force microscopy and high-resolution X-ray reciprocal space mapping. Through symmetry breaking of the substrate surface, ferroelastic domain variants in the highly-straine…
Peer reviewed: Yes
This paper reports works conducted on intumescent stereocomplexed polylactide synthesized for the first time by reactive extrusion. This reactive extrusion process is an innovative, efficient and ecofriendly way to product polylactides. This stereocomplexed polylactide results from the two‐step polymerization of L‐lac…
Abstract Free‐radical polymerization of vinyl chloride is investigated computationally with special attention to the secondary reactions involving mid‐chain radicals (MCRs). Namely, the rate constants of backbiting, chain scission, chain transfer, and propagation reactions are evaluated using a density functional theo…
Electrospining method was used to prepare bioactive TiO(2) fibers films in this study. The acetic acid/ethanol/tetrabutyl titanate/polyvinylpyrrolidone (PVP) solvent system was used as precursor for the electrospining. The TiO(2) fiber structures (including its fiber diameter, morphology, and phase composition) could…
Protein polymer-based hydrogels have shown potential for tissue engineering applications, but require biocompatibility testing for in vivo use. Enzymatically crosslinked protein polymer-based hydrogels were tested in vitro and in vivo to evaluate their biocompatibility. Endotoxins present in the hydrogel were removed…
A multi-objective design optimisation for double primary and secondary winding transformers is presented in the study, with the aim to minimise the deviation between the prescribed and designed short-circuit impedance values. The optimisation process involves the exploitation of the results of an efficient and experim…