Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMixing Properties of Molten Alkali Nitrates Based on the Law of Corresponding StatesYutaka Tada, Setsuro Hiraoka, Takashi Achiwa, and Seung-Tae KohCite this: Ind. Eng. Chem. Res. 1995, 34, 4, 1461–1470Publication Date (Print):April 1, 1995Publication History Published online…
Abstract The compatibilizing effect of a polystyrene‐hydrolyzed poly( t ‐butyl acrylate) diblock copolymer (SBAH) on the phase structure, rheological properties, and mechanical properties of immiscible poly(2,6‐dimethyl‐1,4‐phenylene ether) (PPE) and polyamide‐6 (PA) blends was investigated. The SBAH was prepared by s…
The electronic defects in single crystals of yttria‐stabilized zirconia (YSZ) have been examined using electron paramagnetic resonance (EPR). The EPR spectra of hydrogen‐reduced YSZ single crystals are almost identical to those of polycrystalline yttria (12 mol%)‐stabilized zirconia‐titania, indicating that the Ti 3+…
Pressure-induced transformations in the structural and magnetic properties of ${\mathrm{CsMnF}}_{4}$ are reported. This behavior is analyzed in the framework of magnetostructural correlations within the layered perovskite A${\mathrm{MnF}}_{4}$ (A=Cs,Rb,K) series by using magnetic susceptibility and synchrotron x-ray p…
Previous work by the Authors has shown that small gypsum additions to compacted PFA—lime mixes lead to enhanced compressive strength during high-temperature (95°C) curing but that gypsum contents in excess of an optimum level result in a fall in strength. This strength variation is related to the nature of the reactio…
Abstract MgCl 2 supports were prepared by the recrystallization method with variation of agitation speed and MgCl 2 concentration of the MgCl 2 ‐methanol‐decane mixture. It was found that the particle size of MgCl 2 and MgCl 2 /TiCl 4 could be controlled by changing the MgCl 2 concentration in a methanol droplet or by…
Point defects have been produced in CaO, MgO, and α‐Al 2 O 3 single crystals by electron irradiation, and thresholds for atomic displacement have been measured using timeresolved luminescence spectroscopy. Oxygen displacement energies of approximately 50 eV have been determined; however, a temperature‐dependent thresh…
Polystyrene/Poly(Ethyl acrylate-n-Butyl acrylate) (PS/P(EA-nBA) latex interpenetrating polymer networks (LIPNs) were synthesized by a two stage emulsion polymerisation technique. The effects of fillers and PMMA/P(EA-EMA) LIPN on damping of the LIPNs have been investigated. The results indicate that inorganic fillers p…
The cw ESR linewidth was studied in detail as a function of frequency and temperature in pristine trans-(CH${)}_{\mathrm{x}}$ and (CD${)}_{\mathrm{x}}$ prepared by the Shirakawa technique. It was demonstrated that all the obtained data could be interpreted by quasi-one-dimensional diffusive motion of the neutral solit…
Abstract The synthesis of full and semi interpenetrating networks (IPNs) based on poly(dimethy1‐siloxane) (PDMS)/polystyrene, PDMS/polybutadiene and PDMS/poly(glycerylpropoxytriacry‐late) 1 Glycerylpropoxytriacrylate (GFTA): magnified image is described. PDMS was used as host polymer in most cases. PDMS networks were…
Abstract The strain amplitude dependence of the viscoelastic properties of eight different carbon blacks dispersed in two different rubbery networks is investigated and evaluated within the Cole‐Cole approach for the complex elastic modulus at fixed temperature and frequency. This approach is based on the Kraus model…
Dielectric spectra for the SmA* and SmC* phases of a room temperature ferroelectric liquid crystalline mixture FELIX-008 have been studied in the frequency range from a few Hz to 13 MHz. It has been found that in the vicinity of the SmA*-SmC* transition there is a pronounced soft mode dielectric spectrum, the dielectr…
Abstract Aus einer B 2 O 3 ‐Schmelze gelang die Synthese von Einkristallen der Substanzen Cu 2 M(BO 3 )O 2 (M = Fe 3+ (I), Ga 3+ (II)), die isotyp zueinander sind und in einer monoklin verzerrten Strukturvariante eines Ludwigites mit teilweise geordneter Metallverteilung kristallisieren. Röntgenographische Untersuchun…
Rietveld analysis has enabled a determination, by an internal approach, of the degree of crystallinity of a sample of polyethylene terephthalate (PET) and three samples of zirconium oxide obtained by precipitation from ZrOCl2 followed by crystallization at a different temperature. After subtraction of the air scatteri…
Two new (3, 4) and two known (1, 2) genuine acylated bisdesmosidic triterpenoid glycosides of polygalacic acid (2 beta, 3 beta, 16 alpha, 23-tetrahydroxyolean-12-en-28-oic acid) were isolated from the aerial parts, as well as from the roots, of Solidago virgaurea L. subsp. virgaurea. The structures of these esters wer…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalytic Ceramic Filters for Flue Gas Cleaning. 2. Catalytic Performance and Modeling ThereofGuido Saracco and Vito SpecchiaCite this: Ind. Eng. Chem. Res. 1995, 34, 4, 1480–1487Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published in…
Abstract X‐ray photoelectron spectroscopy (XPS, ESCA) was used to determine the tungsten oxidation states in a 5 wt.% WO 3 /TiO 2 catalyst reduced in hydrogen in the temperature range 400–700°C. Because, in the region of interest, W 4f overlaps with the Ti 3p energy level, a multiple analysis procedure including decon…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular Orbital Calculations of Octahedral Molybdenum Cluster Complexes with the DV-X.alpha. MethodHideo Imoto, Taro Saito, and Hirohiko AdachiCite this: Inorg. Chem. 1995, 34, 9, 2415–2422Publication Date (Print):April 1, 1995Publication History Published online1 May 2002…
Poly(β-hydroxybutyrate)s (PHB) of different microstructures were synthesized via anionic polymerization of β-butyrolactone initiated by two initiators: 1) supramolecular complexes of alkali metals with asymmetric induction agents, and 2) alkali metal alkoxides. The relationships between chemical microstructure and hyd…
Abstract Single crystals having optical quality and dimensions up to 50 mm of sulfamic acid (H[NH 2 SO 3 ]), of the monosulfamates of Li, Na, K, Rb, Cs, Tl, NH 4 , C(NH 2 ) 3 , (CH 3 ) 3 NCH 2 COOH, of CsH[NH 2 SO 3 ] 2 and NH 4 [NH 2 SO 3 ] * NH 4 [HSO 4 ] have been grown from aqueous solutions by standard methods (c…