Materials Literature
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The structure of the title compound, (C(7)H(10)NO)(2)[Mn(2)V(10)O(28)(H(2)O)(10)].4H(2)O or (C(5)H(4)NHCH(2)CH(2)OH)(2)[{Mn(H(2)O)(5)}(2)V(10)O(28)].4H(2)O, at 293 (2) K has triclinic (P\overline{1}) symmetry. The asymmetric unit consists of one half of a decavanadate anion of C(i) symmetry, one [Mn(H(2)O)(5)](2+) gro…
Abstract The temperature dependence of the damping constant is calculated for some Raman modes in NaNO 2 using the soft mode–hard mode coupling model and the energy fluctuation model. The damping constant is fitted to the measured Raman bandwidths of those modes, which is well described by the soft mode–hard mode coup…
The nature of the para-antiferroelectric phase transition in Pb(2)MnWO(6) was investigated by x-ray absorption spectroscopy. Extended x-ray absorption spectra (EXAFS) and x-ray absorption near-edge structure (XANES) at the Pb L(3)-edge, W L(3)-edge and Mn K-edge were measured at temperatures above and below the transi…
A colossal current-induced resistive switching effect caused by low bias current has been found in oxygen-deficient ${\text{La}}_{0.8}{\text{Ca}}_{0.2}{\text{MnO}}_{3\ensuremath{-}\ensuremath{\delta}}$ film at temperatures below the Curie temperature. The switching effect takes place as the bias current or voltage exc…
Abstract The ultrasonic degradation of poly(acrylic acid), a water‐soluble polymer, was studied in the presence of persulfates at different temperatures in binary solvent mixtures of methanol and water. The degraded samples were analyzed by gel permeation chromatography for the time evolution of the molecular weight d…
Abstract Copolymers based on 2,2,2‐trifluoroethyl α‐fluoroacrylate (FATRIFE) and 2,2,2‐trichlororoethyl α‐fluoroacrylate (FATRICE) were synthesized in good yields by radical process initiated by tert ‐butyl 2,2‐dimethylperoxypropanoate. Molar composition of the obtained poly(FATRIFE‐ co ‐FATRICE) copolymers were asses…
Abstract Homopolymer of 1‐4‐di[2,5‐di(2‐thienyl)‐1H‐1‐pyrrolyl]benzene and its copolymer with 3,4‐ethylenedioxythiophene (EDOT) were electrochemically synthesized and characterized. Resulting homopolymer and copolymer films have distinct electrochromic properties. At the neutral state, homopolymer has λ max due to the…
A pyrazinedinitrile derivative carrying dimethylaminoethylsulphanyl groups at positions 5 and 6 was synthesised from 2‐dimethylaminoethanethiol hydrochloride and 2,3‐dicarbonitrile‐5,6‐dichloropyrazine. The dicarbonitrile gave magnesium azaphthalocyanine (MgAzaPc) when reacted with magnesium propoxide in propanol. The…
Abstract: This paper presents an experimental and finite‐element investigation of ballistic limit of thin single and layered aluminium target plates. Blunt‐, ogive‐ and hemispherical‐nosed steel projectiles of 19 mm diameter were impacted on single and layered aluminium target plates of thicknesses 0.5, 0.71, 1.0, 1.5…
The effects of the addition of Co on the magnetic anisotropy in Ni(55-x)Fe(18)Ga(27)Co(x) (x = 1-6) single-variant ferromagnetic shape memory alloys have been investigated. By the addition of Co from 1 to 6 at.%, the Curie temperature T(C) is increased from 318 to 405 K, keeping the martensitic transformation temperat…
The characteristics of the hydrogen bridges in the base pairs with S --> O substitution have been studied and the comparisons with the unmodified systems considered. The modifications induced by the sulfur atom in the structures, energies, and atomic charges have been evidenced and the energetic effects revaluated for…
Abstract For the films and powder of polymers containing conductive oligomer are usually obtained from solution, the choice of better solvents for the regular arrangement of oligomers is very important for the higher conductivity. Because of the poor solubility of the oligomers, it is difficult to study the arrangemen…
Abstract A new diacetamido‐diamine monomer, N ′‐[7‐(acetyl‐4‐aminoanilino)‐9,9‐dioctylflouren‐2‐yl]‐ N ′‐4‐aminophenyl) acetamide (ADOAc), with flourene‐based structure was prepared from the reaction of 4‐aminoacetanillide with 2,7‐dibromo‐9,9‐dioctylfluorene in the presence of 10 mol % CuI, 20 mol % N,N ′‐dimethyleth…
Abstract In this study, oil‐based magnetic Fe 3 O 4 nanoparticles were first synthesized by a coprecipitation method followed by a surface modification using lauric acid. Polystyrene/Fe 3 O 4 composite particles were then prepared via miniemulsion polymerization method using styrene as monomer, 2,2′‐azobisisobutyronit…
Abstract The article describes the preparation of cast copolymer sheets of methyl methacrylate with varying mole fractions of N ‐( p ‐methoxyphenyl) itaconimide/ N ‐(2‐methoxy‐5‐chlorophenyl) itaconimide/ N ‐(3‐methoxy‐5‐chlorophenyl) itaconimide monomers by bulk copolymerization using azobisisobutyronitrile as an ini…
We present a general algorithm for calculating the spatial variation of the shear viscosity and thermal conductivity through an equilibrium solid-liquid interface using the zero-flux version of the boundary fluctuation theory. In the case of an equilibrium interface between a high melting point Lennard-Jones solid and…
Nanocrystalline powders of Zn(1-x)Co(x)O synthesized by the coprecipitation technique show anomalous anisotropic broadening for x>0.05. This peak broadening is shown to be not only due to a reduction in the particle size but also due to a significant strain contribution, as confirmed by Williamson-Hall analysis. The p…
Abstract The thermal behaviors of heat shrinkable poly(vinyl chloride) (PVC) film, used as a packaging material in electronic applications, were investigated. The entropic shrinkage and the thermal shrinkage force were monitored as functions of time and temperature. The shrinkage of the drawn film started in the vicin…
We investigate the thermopower and thermoelectric coefficient of nanogranular materials at large tunneling conductance between the grains, ${g}_{T}⪢1$. We show that at intermediate temperatures, $T>{g}_{T}\ensuremath{\delta}$, where $\ensuremath{\delta}$ is the mean energy-level spacing for a single grain, electron…
We have fabricated a ZnO nanowire (NW)/La(0.65)Sr(0.35)MnO(3) (LSMO) p-n heterojunction by growing the NWs by an easy aqueous chemical route on a pressed powdered pellet of LSMO. The NWs have hexagonal wurtzite structure with good optical emission properties. The current-voltage (I-V) curves of a single NW junction me…