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Abstract A blend system of linear low‐density polyethylene (LLDPE) (ethylene butene‐1 copolymer) with high‐density (linear) polyethylene (HDPE) is investigated by differential scanning calorimetry (DSC), wide‐angle x‐ray diffraction (WAXD), small‐angle x‐ray scattering (SAXS), Raman longitudinal‐acoustic‐mode spectros…
The perovskite solid solutions BaPb1-xBixO3 exhibit unique properties in both metallic and semiconducting phases. In the metallic phase (0 ≤ x ≤ 0.35) they are superconducting with high transition temperatures. It turns out that the high T c originates from extremely strong electron-phonon interaction. At the metal-se…
This report presents the assessed thermochemical measurements on rubidium compounds upon which the property values, Δf H0, Δf G0, S0, C0p, and H0(T)−H0(0) at 298.15 K and Δf H0(0 K) recommended in the ‘‘NBS Tables of Chemical Thermodynamic Properties’’ are based. Included in this set of thermochemical measurements, or…
Abstract
The kinetics of uptake, retention, and radiotoxicity of 125IUdR have been studied in proliferating mammalian cells in culture. The radioactivity incorporated into the DNA is directly proportional to the duration of incubation and to the extracellular concentration of 125I. The rate of proliferation of cells is related…
X-Ray photoelectron spectroscopy (XPS) was used to determine plasma induced chemical species on the surface of polyethylene (PE). Argon plasmas were found to have no detectable chemical effect on the PE surface, whereas oxygen and nitrogen plasmas created new chemical species which altered the chemical reactivity of t…
To crystallize, spherical colloidal particles must not have too broad a spread of size (or polydispersity). Here it is pointed out that the findings of recent calculations and computer simulations concerning the effects of polydispersity on the crystallization of hard spherical particles are simplified considerably if…
This paper reviews all the interactions of hydrogen and deuterium with silica-based optical fibers. Included in the discussion are H2overtone absorption, OH formation, increased UV and IR absorption, radiation effects on H2-treated fibers, the gas-in-glass laser and applications, the reduction of OH absorption by isot…
Diffusion induced grain boundary migration (DIGM) is a phenomenon in which the sideways migration of grain boundaries accompanies the diffusion of solute along them. This results in the deposition of solute in, or its removal from, the matrix through which the boundaries sweep. In this review, the detailed phenomenolo…
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of oxidation and protonation on the electrical conductivity of polyanilinePeter M. McManus, Richard J. Cushman, and Sze Cheng. YangCite this: J. Phys. Chem. 1987, 91, 3, 744–747Publication Date (Print):January 1, 1987Publication History Published online1 May 2002Pu…
Accurate fractional coordinates, (harmonic) thermal parameters and lattice parameters are presented for KDP (KH2PO4) at 293 K, Tc + 5 K and Tc - 20 K, and for ∼95% deuterated DKDP (KD2PO4) at 293 K, Tc + 5 K and Tc - 10 K; and also for KDP and DKDP at 16.5 kbar (at 293 K). The fractional coordinates and thermal parame…
The intensity of the tryptophan fluorescence of the alpha subunits of guanine nucleotide-binding regulatory proteins increases when they bind guanosine 5'-O-(3-thio)triphosphate (GTY gamma S). The kinetics of the fluorescence enhancement and of the measured binding of [35S]GTP gamma S are well correlated. The addition…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetism of manganese(II)copper(II) and nickel(II)copper(II) ordered bimetallic chains. Crystal structure of MnCu(pba)(H2O)3.2H2O (pba = 1,3-propylenebis(oxamato))Yu Pei, Michel Verdaguer, Olivier Kahn, Jorunn Sletten, and Jean Pierre RenardCite this: Inorg. Chem. 1987, 26,…
Polyacetylene is presented both as a prototype conducting polymer and as a prototype one-dimensional metal and semiconductor. The concepts of the physics of one-dimensional metals are demonstrated on idealized polyacetylene. A review of the chemical and physical properties of real polyacetylene is given and experiment…
Barium titanate shows discontinuous grain growth in the presence of small amounts of the liquid eutectic Ba 6 Ti 17 O 40 ‐BaTiO 3 at T > 1312°C. The exaggerated grain growth in the presence of the liquid phase can be explained in terms of a solution‐segregation process. The grain size distribution of sintered BaTiO…
Journal URL: http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=%20PC/PC-00a&sessionid=85597106; http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=journal&sessionid=85597106
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal characterization of poly(acrylic acid)J. J. Maurer, D. J. Eustace, and C. T. RatcliffeCite this: Macromolecules 1987, 20, 1, 196–202Publication Date (Print):January 1, 1987Publication History Published online1 May 2002Published inissue 1 January 1987https://pubs.acs.…
The structures of roller‐quenched SiO 2 ‐Al 2 O 3 glasses containing 10 to 50 wt% Al 2 O 3 were investigated by TEM and high‐resolution 27 Al and 29 Si magic angle sample spinning nuclear magnetic resonance (MASS‐NMR) spectroscopy. The chemical shifts observed in the NMR spectra of these phase‐separated (on the TEM sc…
The potential of superparamagnetic ferrite particles as a contrast agent for magnetic resonance (MR) imaging was studied by in vitro MR spectroscopy and in vivo MR imaging in laboratory animals. After aqueous preparations of ferrite particles were administered intravenously, MR spectroscopy showed greatly decreased T2…