Materials Literature
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Abstract Silk fabric, Habutae, was treated with 100% ammonia‐gas under atmospheric pressure and at pressures of 2, 4, and 6 kgf/cm 2 , and with liquid ammonia at −33°C. The effects of the treatment were investigated on the basis of the X‐ray diffraction, DSC thermogram, moisture regain, water absorption, dyeing proper…
We report on extensive molecular dynamics (MD) simulations of a model for gels in both two and three dimensions. The model consists of randomly cross-linked monomers with a concentration p of cross-links above the percolation concentration so that the system is in the amorphous solid phase. As the concentration of cro…
Abstract Highly flame‐resistant glass‐epoxy laminates without flame‐retarding additives such as halogen and phosphorous compounds have been developed to overcome environmental problems caused by these additives. The laminates consist mainly of a self‐extinguishing epoxy‐resin compound (phenol aralkyl), an incombustibl…
This contribution deals with the role of the polymeric carrier and the chemical bond between the drug and the carrier in the design of polymer-drug conjugates as efficient controlled drug delivery systems. Polysaccharide-drug conjugates prepared by different methods, together with their in vitro and in vivo behavior,…
Abstract EPDM foam was prepared by dynamically vulcanizing EPDM compound in a HAAKE rheometer firstly, then mixing the partially precured EPDM compound with a blowing agent and a sulfur vulcanizing system on a two roll mill. The compound was extruded through a cold feed extruder, and the extrudate was foamed in a circ…
Abstract The chemical composition and fiber morphology of Caragana korshinskii were investigated in this study. Isolation of cellulose was performed in a nonsulfur acetic acid/nitric acid system under various conditions. The influence of three factors, i.e., nitric acid concentration (0, 2, 4, 6, 8, or 10%), temperatu…
Abstract The present study presents the synthesis of unsaturated polyester resins using only one glycol i.e., ethylene glycol. Polyesters of inorganic solubility in styrene were prepared. Properties of the resins in the noncrosslinked state in the process of crosslinking and after curing were studied. © 2006 Wiley Per…
The thermal conductivity and the interface thermal contact resistance of four different in thickness CuO films, obtained by PVD on a tungsten carbide substrate were investigated with a developed modulated photothermal method based on infrared measurement. According to the knowledge of the substrate thermophysical prop…
Indium oxynitride nanoparticles were synthesized on a silicon substrate in nitrogen atmosphere using the method involving thermal evaporation of pure indium in a two-zone reactor. Nanoscale compositional analysis by energy dispersion spectrum showed the existence of indium oxynitride compound. X-ray diffraction analys…
The molecular dynamics during the formation of a polymer dispersed liquid crystal (PDLC) was followed by dielectric relaxation spectroscopy in the frequency range from ${10}^{\ensuremath{-}1}\phantom{\rule{0.3em}{0ex}}\text{to}\phantom{\rule{0.3em}{0ex}}2\ifmmode\times\else\texttimes\fi{}{10}^{6}\phantom{\rule{0.3em}{…
In a systematic search for an oxygen-stoichiometric phase, Sr 3 (FeMo)O 7, in a range of iron-to-molybdenum ratios greater than 1:1 that typically give phase mixtures, we have found an n = 2 Ruddlesden−Popper phase, Sr 3 Fe 5/4 Mo 3/4 O 6.9, as supported by synchrotron powder X-ray diffraction (SPXD), high-resolution…
Abstract A novel type of chitosan nanoscaffold with a soft and cotton‐like appearance is proposed. The key to success is based on two points: (i) the change in morphology of chitin whisker to chitosan nanoscaffold and (ii) the surface modification of the nanoscaffold chitosan with a sugar unit. Simple deacetylation of…
Few transmission electron microscopy (TEM) studies of single crystal diamond have been reported, most likely due to the time and difficulty involved in sample preparation. A method is described for creating a TEM cross section of single crystal diamond using a focused ion beam and in situ lift-out. The method results…
Ein neuartiger Spinpolarisationsmechanismus unter Beteiligung des intramolekularen Ionenpaars *A.−-D.+-R, der mit einem Spin-Bahn-Intersystem-Crossing konkurriert, wird für die Bildung des einzigartig spinpolarisierten photoangeregten Quartettzustands von 1 vorgeschlagen. Verbindung 1 besteht aus einem bodipy-Acceptor…
Abstract The imaging performance of an XPS instrument employing a spherical mirror electron energy analyser has been characterised by measuring the peak position, full width at half maximum (FWHM), and lineshape, at every pixel in the image, for different modes of operation. Changes in these parameters have been ident…
Abstract Composites with different jute fabric contents and polypropylene (PP) were prepared by compression molding. The composite tensile modulus increased as the fiber content increased, although the strain at break decreased due to the restriction imposed on the deformation of the matrix by the rigid fibers. Moreov…
Aqueous solutions of the water-soluble porphyrin 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrinatomanganese(III) acetate were inserted into the holes of a photonic crystal fiber, and the porphyrin absorption bands were identified. Results were obtained for three concentrations. The porphyrins in water show no surface…
Cadmium selenide (CdSe) nanowires, 30−300 nm in diameter, were synthesized using electrochemical step edge decoration on highly oriented pyrolytic graphite (HOPG) surfaces. These CdSe nanowires were more than 100 μm in length and were organized into parallel arrays of hundreds following the length and organization of…
It is generally accepted that protein and solvation dynamics play fundamental roles in the mechanisms of protein-protein binding; however, assessing their contribution meaningfully has not been straightforward. Here, hydrogen/deuterium exchange mass spectrometry (H/D-Ex) was employed to assess the role of dynamics for…
The reaction of tetrakisneopentyl titanium, TiNp 4 ( 1 ), with the surface of partially dehydroxylated Aerosil silica and MCM-41 and the reactivity of the resultant supported titanium alkyl product with water, alcohols, and oxygen are reported. Two methods of preparation have been investigated and compared for the gra…