Materials Literature
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Abstract A miscible blend of 85.5 wt % atactic polystyrene and 9.5 wt % poly(phenylene ether) containing 5.0 wt % expanded graphite nanoparticles was melt‐spun and stretched up to 25 times. The structure and electrical and mechanical properties of the fibers were investigated. Characterized by a Hermans orientation fa…
Abstract Porous poly(2‐hydroxyethyl methacrylate‐methyl methacrylate) particles crosslinked with ethylene glycol dimethacrylate were synthesized by free‐radical suspension copolymerization in an aqueous phase initiated by an oil‐soluble initiator, 2,2‐azobisisobutyronitrile. 1‐octanol was used as a pore forming agent…
The universality of the frequency-dependent (AC) conduction of many disordered solids in the extreme-disorder limit has been demonstrated experimentally. Theoretically, this universality has been established with different techniques and for various models. A popular model that has been extensively investigated and fo…
Volume 2 presents the fundamental principles related to polymer processign operations including the processing of thermoplastic polymers and thermosets. The objective of this volume is not to provide recipies that necessarily guarantee better product quality. Rather, emphasis is placed on presenting a fundamental appr…
Copper-rich precipitates can nucleate and grow in ferritic steels containing small amounts of copper in solution and this affects mechanical properties. Growth kinetics, composition and structure of precipitates under irradiation are different from those under thermal ageing, and also vary with type of radiation. This…
By controlling the morphology of holographic polymer-dispersed ferroelectric liquid crystals (FLCs), highly aligned FLC domains are obtained for diffractive optical applications. Rapid, thresholdless switching is observed for various grating pitch sizes between approximately 3 and approximately 12 microm. A simple phe…
Density functional theory (DFT) in connection with ultrasoft pseudopotential (USP) and generalized gradient spin-polarized approximations (GGSA) is applied to calculate the adsorption energies and structures of monolayer-adsorbed InN on the TiO(2) anatase (101) surface and the corresponding electronic properties, that…
The near-field coupling interactions between surface plasmon modes of neighboring metal nanoparticles (NPs) are investigated in thin films of oligothiophene-linked Au NPs. The oligothiophene linker facilitates near-field coupling between adjacent NPs, and disruption of the conjugation in the oligothiophene by chemical…
Abstract Ethylene propylene diene terpolymer (EPDM)/MgAl layered double hydroxide (LDH) nanocomposites have been synthesized by solution intercalation using organically modified LDH (DS-LDH). The molecular level dispersion of LDH nanolayers has been verified by the disappearance of basal XRD peak of DS-LDH in the comp…
Two correlations concerning the isobaric and isochoric fragilities, m(P) and m(V), as well as the scaling exponent gamma reported by Casalini and Roland [Phys. Rev. E 72, 031503 (2005)] have been examined for several van der Waals and hydrogen-bonded glass formers. It has been pointed out that the correlations lead to…
During the general (conventional) molecular mechanics (GMM) simulation of the buckling of single-walled carbon nanotubes (SWCNTs), the load is displacement controlled and the calculated critical buckling strain is very sensitive to the specific displacement increment and convergence threshold chosen in molecular dynam…
The adsorption of oxygen atoms O(3P) on both ideal and hydrated rutile TiO(2)(110) surfaces is investigated by periodic density functional theory (DFT) calculations within the revised Perdew-Burke-Ernzerhof (RPBE) generalized gradient approximation and a four Ti-layer slab, with (2 x 1) and (3 x 1) surface unit cells.…
In spite of the enormous interest that has been devoted to its study, the mechanism of the enzyme farnesyltransferase (FTase) remains the subject of several crucial doubts. In this article, we shed a new light in one of the most fundamental dilemmas that characterize the mechanism of this puzzling enzyme commonly refe…
Various types of tungsten oxide nanostructures, including nanowires, nanobundles, and three-dimensional nanowire networks, have been synthesized on large-area silicon substrates by simply heating an array of tungsten filaments in a vacuum chamber. The fine structure and components of as-prepared products can been cont…
Abstract A new comonomer ECz‐BEDOT‐ECz (EBEE) [ECz: N ‐ethylcarbazole‐BEDOT:2,2′‐bis(3,4‐ethyhlenedioxy) thiophene] has been synthesized, characterized, and electropolymerized on Pt and carbon fiber microelectrodes (CFME). The ECz side group of the comonomer plays an important role in determining its physical properti…
We report a study of the possible quantum critical point (QCP) in the rare earth substituted colossal magnetoresistive manganite $({\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Dy}}_{x}{)}_{0.7}{\mathrm{Ca}}_{0.3}{\mathrm{MnO}}_{3}$ with $x=0.347$. A magnetic phase diagram has been proposed in the temperature-field-plane b…
The concept of a spectrum-modifying layer is proposed for the design of a silicon-based guided-mode resonance filter. To realize such a novel device, a grating and waveguide structures are fabricated simultaneously in a suspended silicon nitride membrane. The cladding layer of the silicon substrate is replaced by the…
Abstract An in situ deposition approach was used for the synthesis of nano‐CaSO 4 and nano‐Ca 3 (PO 4 ) 2 . The nanosize particles were confirmed with an X‐ray diffraction technique. Composites of polypropylene (PP) with 0.1–0.5 wt % nano‐ or commercial CaSO 4 or nano‐Ca 3 (PO 4 ) 2 were prepared. The transition from…
A transfer matrix method (TMM), developed recently by Ram-Mohan and Dayananda, has been employed for the first time to generate error function solutions for quaternary diffusion in solid–solid metallic diffusion couples. The method was validated with the aid of a hypothetical couple with known quaternary interdiffusio…
Helical amorphous nanosprings have attracted particular interest due to their special mechanical properties. In this work we present a simple model, within the framework of the Kirchhoff rod model, for investigating the structural properties of nanosprings having asymmetric cross section. We have derived expressions t…