Materials Literature
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The composite electrode of La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) and Ag was examined as an air electrode for intermediate-temperature solid oxide fuel cells. Two types of LSCF/Ag composite electrodes were prepared. One was made by firing the printed sheet of LSCF-GDC (10mol%Gd2O3 doped CeO2)-Ag powder mixture on the GDC/8mol%…
Electrodes and electrolytes are two essential components of a supercapacitor and play important roles in determining the performance for the supercapacitor. In the present work, we investigated the electrochemical and capacitive behavior of aligned carbon nanotube electrodes in ionic liquid electrolytes to study the f…
Summary During a hypothetical severe accident on a nuclear Pressurized Water Reactor (PWR), the formation of highly radiotoxic RuO 4 (g) may occur in the reactor containment building, resulting from the interactions of ruthenium oxide deposits with the oxidising medium induced by air radiolysis. Consequently, there is…
Abstract The original Doufas–McHugh two‐phase microstructural/constitutive model for stress‐induced crystallization is expanded to polyolefin systems and validated for its predictive capability of online Raman crystallinity and spinline tension data for two Dow homopolymer polypropylene resins. The material parameters…
Abstract Online Raman spectra, obtained at different points along the spinline during the melt spinning of polypropylene homopolymer (hPP) fibers, are presented. The percentage crystallinity corresponding to each spectrum was determined from the normalized intensity of the 809‐cm −1 Raman band. A calibration curve for…
Abstract— A new operation mode of a bistable smectic A (SmA) display using two sets of electrodes, one without specific features to induce homeotropic orientation of the director and the other with an in‐plane pattern to induce planar orientation of the director, has been demonstrated. Both statements of the director…
Abstract The free‐radical solution copolymerization of isobutyl methacrylate with lauryl methacrylate in the presence of an inhibitor was studied with thermoanalysis methods. A set of inhibited polymerization experiments was designed. Four different levels of initial inhibitor/initiator molar ratios were considered. I…
We study the effects of the size of polymer additives and ionic strength on the phase behavior of a nonglobular protein-immunoglobulin G (IgG)-by using a simple four-site model to mimic the shape of IgG. The interaction potential between the protein molecules consists of a Derjaguin-Landau-Verwey-Overbeek-type colloid…
The purpose of the present paper is to study the influence of glass composition on the thermal stability in the SiO2–B2O3–BaO system, and three glasses were consequently investigated. Although Glass A has a coefficient of thermal expansion (CTE) that shows the best match with those of anode and electrolyte materials o…
This paper focuses on the application of ANFIS in modeling the nonlinear behavior of the shape memory alloy actuators. Although, SMA actuators have attracted much attention for applications in many fields such as miniature robots they have not been widely utilized for motion control applications due to their nonlinear…
Strong attraction: Hundreds of electron donors can be covalently attached to a single-walled carbon nanotube (SWCNT) to form a Dn A artificial photosynthetic model (see figure). Multiple electrons are simultaneously or sequentially transferred to the nanotube upon light absorption and multiple-charge separation state…
Abstract Nonwoven, biodegradable membranes fabricated by electrospinning have recently attracted a great deal of attention for biomedical applications. In this study, microporous, nonwoven membranes of poly( L ‐lactide) and its copolymers and blends were fabricated through electrospinning. The structures and morpholog…
Multifunctional and thermosensitive poly(N-isopropylacrylamide-co-propyl acrylic acid-co-hydroxyethyl methacrylate) (P(NIPAAm-co-PAAc-co-HEMA)) nanogels were prepared by miniemulsion polymerization. The mean sizes of the nanogels measured by dynamic light scattering (DLS) varied from 120 to 400 nm with an increase in…
There is currently great interest in the development of lipid enclosed systems with complex geometrical arrangements that mimic cellular compartments. With biochemical functionalization, these soft matter devices can be used to probe deeper into life's transport dominated biochemical operations. In this paper, we pres…
Abstract The dumbbell‐like calixarene bicapsule in two novel Ln III –C4AS compounds was found to be a hexanuclear Ln III /phenanthroline/ p ‐sulfonatocalix[4]arene oligomer. The magnetic and luminescent properties of these compounds were examined. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Abstract A methoxy poly(ethylene oxide) (MPEO) grafted poly(acrylic acid) (PAA) comblike copolymer was synthesized by the direct condensation of MPEO onto the PAA backbone in the presence of dicyclohexyl dimethylcarbodiimide (DCC) and 4‐dimethylaminopyridine (DMAP). Its chemical structure was characterized by Fourier…
We propose a unifying, analytical theory accounting for the self-organization of colloidal systems in nanocluster or microcluster phases. We predict the distribution of cluster sizes with respect to interaction parameters and colloid concentration. In particular, we anticipate a proportionality regime where the mean c…
The nature of the coexisting ferromagnetic–metallic (FMM) and antiferromagnetic–insulating (AFI) phases in a La 0.5 Ca 0.5 MnO 3 sample is explored through magnetization and resistivity studies. Like many first-order magnetic transitions, in this case also the FMM–AFI transformation is interrupted by glass-like arrest…
Attapulgite (playgorskite), a kind of nanosized fibrous clay mineral, may provide a simple and cheap alternative to improve the stiffness and actuation stress of shape memory polymers (SMPs). As a first step, in this paper, we investigate the glass transition temperature of a polyurethane SMP reinforced with treated/n…
Abstract Blends of poly( L ‐lactic acid) (PLLA) and poly (butylene terephthalate‐ co ‐adipate) (PBTA) were prepared at ratios of 50 : 50, 60 : 40, and 80 : 20 by melt blending in a Laboplastomill. Improved mechanical properties were observed in PLLA when it was blended with PBTA, a biodegradable flexible polymer. Irra…