Materials Literature
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The phase behavior of colloid-polymer mixtures, and of solutions of globular proteins, is often interpreted in terms of a simple model of hard spheres with short-ranged attraction. While such a model yields a qualitative understanding of the generic phase diagrams of both colloids and proteins, it fails to capture one…
In this study, sintered glass‐ceramics made up of jarosite (a hazardous industrial waste) have been obtained by sintering high‐iron‐content glasses. Thermal gravimetry and differential thermal analysis, carried out in different atmospheres, have been utilized to explain the phase formations in the volume and iron oxid…
The susceptibility of ${(\mathrm{S}\mathrm{m}}_{0.65}{\mathrm{Sr}}_{0.35}{)\mathrm{M}\mathrm{n}\mathrm{O}}_{3}$ shows an unusual temperature dependence above the Curie temperature which is attributed to the presence of small manganese-ion clusters with $S\ensuremath{\approx}9.$ A field-induced transition is observed i…
Photoelectrochromic “smart” window technology is extended to include the use of flexible substrates and solid‐state electrolytes. This should facilitate their application as retrofit modifications of office windows, where, by blocking incoming solar irradiation, they could substantially lower air‐conditioning costs. T…
The infrared absorption spectra of polycrystalline ${\mathrm{LaMnO}}_{3}$ and ${\mathrm{CaMnO}}_{3}$ measured in the frequency range of the transverse optical phonons are reported, discussed, and compared with calculations of the lattice dynamics. For ${\mathrm{LaMnO}}_{3}$ the measured spectrum is consistent with the…
Our objective in the series of the present work is to obtain a type of magnet in which the weight average of ferromagnetic and ferrimagnetic characters is precisely controlled by fine tuning of the composition. For this attempt, we have prepared the $({\mathrm{Ni}}_{x}^{\mathrm{II}}{\mathrm{Mn}}_{1\ensuremath{-}x}^{\m…
The compatibilizing effect of anhydride groups attached to a polyester was examined while blending soy protein and a biodegradable polyester. Three different polyesters grafted with anhydride functional groups were used as compatibilizers for blending with soy protein concentrate, soy flour, and soy isolate. The proce…
As the second paper of a series of our studies on surface-enhanced Raman scattering (SERS) of biological molecules on metal colloid, this paper reports effects of aggregation of gold colloid on the SERS intensity of glycine (Gly) in aqueous solutions and comparison of effects of pH of the Gly solutions between gold an…
The variation of the ultimate stress and the elastic modulus of four different natural fiber-resin matrix composites was evaluated as a function of the aging of these composites in distilled water. Their diffusion coefficients and the maximum water content were also determined by fitting the experimental data to the F…
Because of the need for methods for successful transplantation of autologous fat, the differentiation of human preadipocytes on surgical mesh coated with various extracellular matrix components was investigated. Biopsy specimens of human adipose tissue were collected from seven different patients and were subjected to…
Recently it was shown that smectic liquid crystal phases formed by achiral banana-shaped molecules are chiral. Films of such phases generally contain both homochiral (consisting of layers of the same chirality) and racemic (the chirality alternates in subsequent layers) domains. So far it has not been clear how to con…
Heat conduction in thin films and superlattices is important for many engineering applications such as thin-film based microelectronic, photonic, thermoelectric, and thermionic devices. Past modeling efforts on the thermal conductivity of thin films were based on solving the Boltzmann transport equation that treats ph…
Mechanical properties of sputtered AlCu(0.5 wt %) thin films, 0.2–2.0 μm thick, were determined by tensile testing. For comparison, tensile tests were also performed on bulk samples of the same composition. The films were deposited on thin polyimide foils. They were characterized with respect to the surface, microstru…
In the present study, the structural and morphological development during melt spinning of polyethylene and poly(vinylidene fluoride) fibers was studied using simultaneous in-situ synchrotron small- and wide-angle X-ray scattering (SWAXS) techniques. The spinning apparatus consisted of a single screw extruder, which w…
The peculiar solubility behavior of propylparaben (propyl ester of 4-hydroxybenzoic acid) in aqueous solution, when tested separately and together with methyl-, ethyl-, and butyl-parabens, has been investigated in detail. The results clearly indicate that the decrease in solubility (approximately 50% compared to the s…
The quantitative understanding of rheological experiments on compatibilized binary polymer blends requires the consideration of viscoelastic interfacial properties. The Palierne model offers these capabilities but a systematic analysis has not been performed yet. Starting from the Palierne model containing a Maxwell a…
In situ , ex situ , and microscopic Raman spectroscopy were used to examine the interactions of dilute chromate solutions with actively corroding pits in aluminum alloy used for aerospace applications (AA-2024-T3). Approximately in salt solution greatly reduces alloy corrosion, and soluble Cr(VI) is a major component…
Antifoams (usually consisting of a mixture of hydrophobic solid particles and oils) are widely used in different technological applications to prevent the formation of excessive foam. Uncertainty still exists in the literature about the actual mechanisms by which these substances destroy the foam. To elucidate this pr…
This Microreview highlights the chemistry of the metacyclophanediene-dihydropyrene system, which is a reversible photochromic π switch. Although most studies have been carried out on systems with a single dihydropyrene, recently multiple dihydropyrenes have been fused to conjugated spacers to give multi-state switches.
High hydrostatic pressures were applied to single-wall carbon nanotubes by means of a diamond anvil cell (DAC), and micro-Raman spectroscopy was simultaneously used to monitor the pressure-induced shift of various nanotube bands. The data confirm recent results independently obtained from internal pressure experiments…