Materials Literature
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The crystal structures of three isotypic orthorhombic dihydrogendiphosphates, namely dipotassium copper(II)/nickel(II)/zinc(II) bis(dihydrogendiphosphate) dihydrate, K2M(H2P2O7)2.2H2O (M = Cu, Ni and Zn), have been refined from single-crystal data. The M2+ and K+ cations are located at sites of m symmetry, and the P a…
Abstract Tencel is a regenerated cellulose fiber produced using an environmentally‐responsible dry‐jet wet‐spinning process, which contributes to its excellent mechanical properties. In this study, the tensile properties of Tencel continuous filaments are characterized and the effect of twist on mechanical properties,…
Abstract The linear viscoelastic properties of copolypropylene (cPP)–clay nanocomposites (cPPCNs) prepared by melt intercalating with different amounts of clay were extensively examined by rheological measurements. Meanwhile, the clay effects on the cPP confinements were first estimated by calculating the activation e…
A substantial internal friction peak associated with grain boundary (GB) has been observed in pure aluminum bicrystals with ⟨100⟩ tilt GBs, which is similar to that observed for ⟨112⟩ tilt GBs in the previous work [Phys. Rev. B 71, 060101(R) (2005)]. The peak is suggested to be induced by GB sliding, but with differen…
In the torque created by an electric field, highly polarizable single-walled carbon nanotubes, suspended in dichloroethane, rotate and align with the field creating a transient induced birefringence (TEB). The magnitude of the birefringence, $\ensuremath{\Delta}n$, is followed in time by the switching of a square volt…
A method for more-accurate prediction of crystallization kinetics is greatly needed in the field of industrial crystallization. Traditional empirical correlations cannot give reliable predictions, because of the highly nonlinear behavior of crystallization kinetics, although they have been used for a long time. In thi…
A systematical and detailed nomenclature for dendritic species (“cascadane-nomenclature”) is developed which is based on the rules of naming dendrimers introduced by G. R. Newkome in 1993. As the importance and versatility of dendritic species in organic chemistry is increasing, it is to distinguish between different…
The five quaternary compounds Ba 3 Gd 2 [P 4 S 16 ] ( 1 ), Ba 3 Tb 2 [P 4 S 16 ] ( 2 ), Ba 3 Dy 2 [P 4 S 16 ] ( 3 ), Ba 3 Ho 2 [P 4 S 16 ] ( 4 ), and Ba 3 Er 2 [P 4 S 16 ] ( 5 ) were synthesized at elevated temperatures in carbon-coated quartz tubes. The isostructural compounds crystallize in the orthorhombic space gr…
Abstract Nonaqueous synthesis of nanosilica in diglycidyl ether of bisphenol‐A epoxy (DGEBA) resin has been successfully achieved in this study by reacting tetraethoxysilane (TEOS) directly with DGEBA epoxy matrix, at 80 °C for 4 h under the catalysis of boron trifluoride monoethylamine (BF 3 MEA). BF 3 MEA was proved…
The relative activities of a low-surface crystalline and high-surface amorphous LaOCl, further denoted as S1 and S2, have been compared for the destructive adsorption of CCl4. It was found that the intrinsic activity of S2 is higher than that of S1. Both samples were characterized with X-ray diffraction (XRD), X-ray p…
Coupled equations of radial and translational motions of a spherical bubble, accounting to the first order for the compressibility of the surrounding liquid, are derived using an energy approach. It is shown that the compressibility corrections appear only in the radial equation, while the translational equation keeps…
Treatment of the octahedral Ru(II) complex [trans,cis,cis-RuCl(2)(DMSO-O)(2)(CO)(2)] with an equimolar amount of 5,10-bis(3'-pyridyl)-15,20-diphenylporphyrin (3'-cis-DPyP) yielded, upon selective replacement of the DMSO ligands, the neutral 2 + 2 metallacycle 2. NMR spectroscopy provided unambiguous evidence that only…
The coupled neutron diffraction and Mossbaüer study of the layered oxide Sr 3 NdFe 3 O 9 shows for the first time the possibility of anionic vacancies ordering in an oxygen-deficient related Ruddlesden−Popper- (RP-) type ferrite leading to an original intergrowth of brownmillerite and K 2 NiF 4 -type layers. The antif…
We demonstrate that changes in electrolyte composition and applied potential during aqueous electrodeposition can be used to tune the magnetic hysteresis response of thin-film Fe3O4 (magnetite) on polycrystalline metal substrates. X-ray diffraction data confirmed that magnetite formation in electrolytes containing KCH…
Abstract Poly(2,4‐dimethyl‐1,4‐phenylene oxide) (PPO), poly(benzo[1,2‐ d :5,4‐ d ′]bisoxazole‐2,6‐diyl‐1,4‐phenylene) (PBO) and poly(benzo[1,2‐ d :4,5‐ d ′]bisthiazole‐2,6‐diyl‐1,4‐phenylene) (PBZT), which are polymers with extended conjugated structures, undergo a self‐sensitized photo‐induced electron‐transfer react…
7-(Dimethylamino)-1-methylquinolinium tetrafluoroborate ( 2 ), a stable color shifting mobility sensitive fluorescent probe, was employed for investigating physical aging in amorphous polymers. A linear correlation between the emission wavelength of 2 and the specific volume of the polymer was found in polycarbonate (…
Zinc oxide single crystals implanted at room temperature with high-dose (1.4×1017cm−2) 300 keV As+ ions are annealed at 1000–1200 °C. Damage recovery is studied by a combination of Rutherford backscattering/channeling spectrometry (RBS/C), cross-sectional transmission electron microscopy (XTEM), and atomic force micro…
The ternary molecular nanoclusters [Zn(x)Cd(10-x)Se4(SePh)12(PnPr3)4] (x = 1.8, 1 a; x = 2.6, 1 b) were employed as single-source precursors for the synthesis of high-quality hexagonal Zn(x)Cd(1-x)Se nanocrystals. The tellurium clusters [Zn(x)Cd(10-x)Te4(TePh)12(PnPr3)4] (x = 1.8, 2 a; x = 2.6, 2 b) are equally conven…
Both quantitative and qualitative knowledge of strain and strain distributions in quantum dots are essential for the determination and tailoring of their optoelectronic properties. Typically strain is estimated using classical elasticity and then coupled to a suitable band structure calculation approach. However, clas…
In this work, we address the issue of controlled modification of the surface topography of polydimethylsiloxane (PDMS) when subjected to oxygen-based plasma treatments, and we investigate the resulting enhanced surface area as a means of controlling the surface wetting properties. We fabricate wavy structures of contr…