Materials Literature
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Abstract A pair of aliphatic amines were synthesized in order to study the effect steric hindrance has on the physical properties of an amine‐cured epoxy resin. The hindered amine (TMSiDA) has NH 2 groups that are obstructed by the presence of adjacent methyl groups while the unhindered amine (SiDA) does not contain a…
The dispersive and polar surface‐energy components, as well as the total surface energy, of tin oxide coatings on soda–lime–silica glass were determined by the Owens–Wendt method. The total surface energy of tin oxide is greater than soda–lime–silica glass and, more importantly, exhibits significantly more‐dispersive…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVibrational spectra of cyclic dithioethers and their dications. 1. Vibrational spectra and structures of 1,5-dithiacyclooctane and related cyclic dithioethersMasanori Serita, Makiko Tamaoki, and Koichi ItohCite this: J. Phys. Chem. 1988, 92, 7, 1747–1751Publication Date (Pri…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactivity control by microencapsulation in simple ammonium ion vesiclesRobert A. Moss, Shanti. Swarup, and Hongmei. ZhangCite this: J. Am. Chem. Soc. 1988, 110, 9, 2914–2919Publication Date (Print):April 27, 1988Publication History Published online1 May 2002Published inissu…
DSC measurements of four kinds of acrylic fibers (Dralon X-100, Dunova, Acryl, and Aqualon) were made after equilibration with various amounts of water. The DSC curves in heating from -80° to 20°C were analyzed to obtain information on the state of water in these fibers. The results show that in a water-saturated stat…
The effects of various testing parameters on the accelerated life test results of 15 kV underground residential distribution cables prepared from thermoplastic and crosslinked polyethylene insulation are considered. Testing parameters included dry versus water in the strand, voltage stresses 4X(34.6 kV) and 3X(26.0 kV…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrganometallic compounds of the lanthanides. 43. Synthesis and x-ray crystallographic characterization of the first organolanthanide compound with a lanthanide-arsenic bondHerbert Schumann, Eftimios Palamidis, Joerg Loebel, and Joachim PickardtCite this: Organometallics 1988…
Oriented lamellar eutectic composites of NiO and ZrO 2 (CaO) platelets were reduced in CO 2 /CO gaseous atmospheres to form metallic Ni between the zirconia plates. The relatively rapid longitudinal reduction of NiO is described by a local cell electrochemical model whereby oxide ions are conducted from the Ni/NiO int…
Properties of the \ensuremath{\alpha} and \ensuremath{\beta} phases of solid ${\mathrm{O}}_{2}$ are calculated with a deformable-cell Monte Carlo method and the character of the associated phase transition is delineated. We find that the monoclinic \ensuremath{\alpha} phase is stable at temperatures T\ensuremath{\less…
Abstract Synthetic Eu-anorthite of the alkali feldspar structure type has been refined to R w = 4.7% using 3-D counter diffractometer data and full-matrix least-squares methods. The chemical composition of the feldspar is Eu 0.92 Al 1.76 Si 2.24 O 8 , based on both occupancy refinement of the Eu atom site and estimati…
The photoluminescence characteristics of undoped and TbCl3-doped zinc oxide films deposited by the spray pyrolysis technique are reported. Undoped films present the characteristic blue-green emission peak at ∼508 nm observed in single-crystal and powder ZnO. The TbCl3-doped films present a luminescence peak at ∼540 nm…
The temperature dependence of Raman scattering near the phase transition points between antiferroelectric orthorhombic(Aa), ferroelectric rhombohedral (FR) and paraelectric cubic (PC) phases was investigated in PbZrO3 crystals. The measurements were carried out with simultaneous observations of the electric permittivi…
Abstract not Available.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of ozone decomposition in water. The role of terminationAlex D. NadezhdinCite this: Ind. Eng. Chem. Res. 1988, 27, 4, 548–550Publication Date (Print):April 1, 1988Publication History Published online1 May 2002Published inissue 1 April 1988https://pubs.acs.org/doi/1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemical and spectroelectrochemical studies of nickel(II) porphyrins in dimethylformamideK. M. Kadish, D. Sazou, Y. M. Liu, A. Saoiabi, M. Ferhat, and R. GuilardCite this: Inorg. Chem. 1988, 27, 7, 1198–1204Publication Date (Print):April 1, 1988Publication History Pub…
Abstract Phthalocyanine (1) was dissolved to the micellar solution formed by non-ionic surfactants with ferrocenyl moiety. A 1 thin film was prepared on an indium tin oxide (ITO) electrode by the controlled-potential electrolysis of this solution. This film consisted of rod-like crystals of 500 nm in length.
Zinc oxide elements have been developed which contain praseodymium oxide rather than bismuth oxide as a principal additive component. These elements have been used to produce gapless surge arresters with rated voltage up to 360 kV. The two-phase microstructure of these elements increases the active area of grain bound…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and reactivity of .sigma.-bonded silicon metalloporphyrins. Spectroscopic characterization and electrochemistry of (P)Si(R)2, (P)Si(R)X, and (P)SiX2, where R = C6H5 or CH3 and X = OH- or ClO4-K. M. Kadish, Q. Y. Xu, J. M. Barbe, and R. GuilardCite this: Inorg. Chem…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMDI-based polyurethane ionomers. 1. New small-angle x-ray scattering modelDaychyuan Lee, Richard A. Register, Changzheng Yang, and Stuart L. CooperCite this: Macromolecules 1988, 21, 4, 998–1004Publication Date (Print):April 1, 1988Publication History Published online1 May 2…
In order to clarify the mechanism for increased corrosion resistance in O-phosphoric acid solutions by addition of molybdenum to 17Cr-13Ni stainless steel (SS), anodic curves polarization and electron spectroscopy for chemical analysis (ESCA) have been performed on the Mo-containing steels passivated in 40 wt% H3PO4 w…