Materials Literature
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Abstract Recycled polyamide 6 (PA6) cloth was used as the only raw material to prepare single polymer composites (SPC) by partially melting the PA6 fibers. During the process, part of PA6 fibers was melted to fill the gap between the remained fibers at a temperature in the melting temperature range of fibers. The matr…
ADVERTISEMENT RETURN TO ISSUEPREVBook ReviewNEXTThe Supramolecular Chemistry of Organic-Inorganic Hybrid MaterialsPaul S. WeissView Author Information University of California, Los AngelesCite this: J. Am. Chem. Soc. 2010, 132, 31, 10954Publication Date (Web):July 14, 2010Publication History Published online14 July 20…
Ordered mesoporous boron carbide materials with high specific surface areas up to 778 m 2 /g and hexagonal pore arrangement symmetries were obtained for the first time using a nanocasting strategy and the molecular bisdecaboranyl-hexane precursor for the infiltration into an ordered mesoporous silica template (SBA-15)…
Abstract Two ethylene‐vinyl acetate (EVA) resins with 19% (EVA19) and 28% (EVA28) of vinyl groups were used as compatibilizers for nanocomposites of high‐density polyethylene (HDPE) and nanoclays. Two nanoclays were also used, one with a nonpolar surfactant (C15A) and another with a polar surfactant (C30B). The HDPE/E…
4 Transport Modelling in Bulk Crystal Growth 7 4.1 Governing Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.2 Boundary Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.3 Continuum Interface Representation . . . . . . . . . . . . . . . . . .…
Abstract Polypyrrole/Titanium dioxide (PPy/TiO 2 ) composite thin films were prepared by polymerizing the monomer pyrrole in aqueous solution containing a certain amount of TiO 2 particles at room temperature, and their response to ammonia (NH 3 ) gas was examined systematically. Compared with the pristine PPy film, w…
Abstract The potential uses of hydrophilic nanostructured microporous polymers (PolyHIPE polymers) in agriculture were investigated with rye grass as a model plant. The basic material was crosslinked styrene–divinyl benzene polymer with a 90 vol % porosity. They were microwave‐sulfonated to obtain hydrophilic polymers…
Abstract Natural rubber (NR) was purified by saponification of fresh latex from Hevea brasiliensis and soaking process of the coagulum with aqueous NaOH solution. This treatment resulted in the decrease of nitrogen content to the same level as enzymatic deproteinized NR. The saponification of NR latex and soaking of t…
ZnO nanorods (NRs) with high surface area to volume ratio and biocompatibility is used as an efficient photosensitizer carrier system and at the same time providing intrinsic white light needed to achieve cancer cell necrosis. In this letter, ZnO nanorods used for the treatment of breast cancer cell (T47D) are present…
Scattering cancellation approach has been recently proposed as a promising route to design invisibility cloaks. However, reduced observability of an object is just one of the potential applications of this technique. In this paper, we investigate the possibility to reduce optical forces exerted on a given nanoparticle…
Metal-enhanced fluorescence of semiconductor nanocrystals (NCs) is investigated. There is very little attention paid to the metal-enhanced fluorescence in aqueous solution, which has great potential applications in bioscience. In this work, we directly observe metal-enhanced fluorescence of CdTe NC solution by simply…
A uniform source-and-sink (USS) scheme, which combines features of the reverse [F. Müller-Plathe, J. Chem. Phys. 106, 6082 (1997)] and improved relaxation [B. Y. Cao, J. Chem. Phys. 129, 074106 (2008)] methods, is developed to calculate the thermal conductivity by nonequilibrium molecular dynamics (NEMD). The uniform…
A pseudo second-order kinetic expression was presented to explain the dissolution kinetics of solids in solution. The kinetic constant, initial dissolution rate, and theoretical saturation concentration according to pseudo second-order kinetic expression was defined. The proposed expression successfully represents the…
Abstract Recently, apatite‐type germanates La 9.33+ x Ge 6 O 26+3 x /2 have attracted considerable interest due to their high oxide ion conductivities. Research has shown that the key defects are oxide ion interstitials which lead to the conversion of some of the GeO 4 units to GeO 5 . Consequently there has been a la…
Carbon nanotubes (CNTs) may be used to create nanoscale compliant mechanisms that possess large ranges of motion relative to their device size. Many macroscale compliant mechanisms contain compliant elements that are subjected to fixed-clamped boundary conditions, indicating that they may be of value in nanoscale desi…
In this study, a functionalized pentaerythritol star polyester compound [tetrakis(nicotinoxymethyl)methane, TNMM] and an octakis[dimethyl(4-hydroxyphenethyl)siloxy]silsesquioxane (OP-POSS) were synthesized and used as tetrahedral and cubic building blocks, respectively, for three-dimensional, hydrogen-bond-mediated, p…
The usefulness of azopyridinium methyl iodide salts for designing new promising light-controlled molecular switches is presented. Large absorbance changes have been produced in the samples by irradiation with light at lambda = 355 nm. The thermal recovery of the initial state took place completely within 130-450 ms, w…
ZnO nanorod films are increasingly used as an alternative to nanoporous TiO 2 as the electron conductor in semiconductor-sensitized nanoporous solar cells (SSSCs). Semiconductor light absorbers deposited onto ZnO by chemical bath deposition (CBD) tend to form poorly covering deposits of isolated clusters. We show how…
We describe the length-dependent exciton dynamics in DNA-wrapped single-walled carbon nanotubes (SWNTs) using time-resolved photoluminescence (PL) excitation correlation spectroscopy. We demonstrate that the effective PL lifetimes have substantial upper limits in longer SWNTs. Our results suggest that the exciton diff…
The flow behaviour of Ti–5Al–5Mo–5V–3Cr with an initial microstructure containing acicular α platelets has been characterised during isothermal subtransus forging. Flow softening was observed, following yielding and limited hardening, for all investigated temperatures and strain rates, before a steady state flow regim…