Small molecule and polymeric liquid crystalline materials have applications in a multitude of areas, ranging from displays, optical/ electronic imaging, data storage, and stress/temperature sensing to chemical/fire resistance and artificial muscle actuation. The design of typical molecular architectures that facilitate thermotropic liquid crystalline behavior is well documented. Molecules with ...

Using liquid membrane and, in particular, supported liquid membrane (SLM) is a novel method of separation in comparison to other methods such as adsorption, extraction and ion exchange. SLM is a combination of simultaneous extraction and disposal whose high efciency and capability is proven by many studies. So far, many researchers have utilized SLM in various scientifc...

Most works on liquid metal embrittlement up to 1960 are compiled by Rostoker et al. (1) They stated that grain boundary diffusion is not an origin of embrittlement, since its rate, in general, is too small. However, Waterhouse et al. (2), performing the experiment on 70/30 brass wetted with mercury, suggested that dissolution of zinc from grain-boundaries into mercury accelerates the degree of ...

Two new macrocyclic hydrazone Schiff bases were synthesized by reaction of succindihydrazide and adipdihydrazide with acetylacetone. Hydrazones have been characterized by elemental analyses and IR, mass, (1)H NMR, and (13)C NMR spectral data. Hydrazones have been studied by liquid-liquid extraction towards the s-metal ions (Li(+), Na(+), and K(+)) and d-metal ions (Cu(2+) and Cr(3+)) from aqueo...

Ionic liquid-based dispersive liquid–liquid microextraction (IL– –DLLME) coupled with high performance liquid chromatography (HPLC) with UV detection was developed for the simultaneous extraction and determination of nickel, cobalt, copper and zinc ions. In the proposed approach, salophen (N,N'-bis(salicylidene)-1,2-phenylenediamine) was used as a chelating agent, the ionic liquid, 1-hexyl-3-me...

The synthesis of metal frameworks perforated with nanotunnels is a challenge because metals have high surface energies that favor low surface area structures; traditional liquid-crystal templating techniques cannot achieve the synthetic control required. We report a synthetic strategy to fabricate metal nanomaterials with highly ordered, tunable mesostructures in confined systems based on a new...

Semi-solid metal processing results in liquid segregation at the surface of the components. The pitting behavior of this surface layer of semi-solid metal processed alloy F357 was compared with the centre (or bulk) of cast plates in 3.5% NaCl aqueous solution. It is shown that pitting attack occurs preferentially in the eutectic regions at the interface between silicon particles and the alpha p...

We investigate the mechanisms of the nonmetal-metal transitions of Se and Te induced by the volume compression both in the solid and liquid states by the density functional method. The volume compression increases the band width and the system transforms from nonmetal to metal phase both in the crystalline Se and Te. When the system has structural disorder, the energy of the anti-bonding level ...