Materials Literature
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The magnetization process in a cube-on-edge Si-Fe single crystal whose tilt angle θ of the [001] axis to a specimen surface is small is experimentally clarified and explained from the viewpoint of the magnetic energy. The relation between the magnetostriction and the domain structure varying with induction is made cle…
Microscopic metal film patterns have been imaged on p-Si and n- and p-GaAs by photoelectrochemical deposition from standard aqueous plating solutions. The photodeposition of Cu, Ni, Pd, and Au films was investigated. Resolution exceeding 10 μ has been achieved for deposits of Au on p-GaAs and Cu on p-Si.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChain motion in the amorphous regions of polyethylene as revealed by Deutron magnetic resonanceD. Hentschel, H. Sillescu, and H. W. SpiessCite this: Macromolecules 1981, 14, 5, 1605–1607Publication Date (Print):September 1, 1981Publication History Published online1 May 2002P…
A phase analysis in pseudobinary (1−x)Pb(F1/2Nb1/2)O3−xPb(Mg1/2W1/2)O3 system is conducted by measuring its dielectric properties, E-P hysteresis, and dc resistivity at x = 0.1 interval. Lattice parameters and ordering of ions are analyzed by the x-ray diffraction method, and the temperature-composition phase diagram…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystallization of poly(spiropyran methacrylate) with cooperative spiropyran-merocyanine conversionV. A. Krongauz and E. S. GoldburtCite this: Macromolecules 1981, 14, 5, 1382–1386Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Publish…
This paper reports the results of a calculation of the optical response of a hexagonal lattice of Ag spheroids coated with confocal layers of dye. The layered spheroid polarizability and the local field, which includes the effects of interactions with the quartz substrate, are calculated in the electrostatic limit. Us…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSalt linkage formation of poly(diallyldimethylammonium chloride) with acidic groups in the polyion complex between human carboxyhemoglobin and potassium poly(vinyl alcohol) sulfateEtsuo Kokufuta, Hidetoshi Shimizu, and Isei NakamuraCite this: Macromolecules 1981, 14, 5, 1178…
A study has been made of the strength characteristics of machined glass‐ceramic surfaces using an indentation flaw technique. The strength is found to decline or increase with progressive removal of the machining damage layer by a polishing procedure, depending on whether the indentation is made after or before the po…
The sequence of 437 amino acid residues of porcine heart citrate synthase [citrate oxaloacetate-lyase (pro-3S-CH2COO leads to acetyl-CoA), EC 4. 1. 3. 7] has been determined by the alignment of fragments generated by cleavage with cyanogen bromide and with trypsin. Isolation of the peptides was facilitated by recent d…
Abstract The morphology of binary and ternary polyolefin blends of polypropylene (PP), ethylene‐propylene‐diene terpolymer (EPDM) and polyethylene (PE) following processing by injection and compression molding has been examined by optical and scanning electron microscopy. Internal surfaces were generated by low temper…
The structure of a vacuum-deposited polycrystalline film of zinc phthalocyanine, C32H16N8Zn, has been investigated by high-resolution electron microscopy. With the aid of a minimum-dose system, the molecular arrangements in crystals were observed and the existence of at least three polymorphs were confirmed in the fil…
We report the isolation and chemical characterization of collagen cross-linking compounds, 3-hydroxypyridinium and dihydroxylysinonorleucine, from human urine.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface studies on multicomponent polymer systems by x-ray photoelectron spectroscopy: polystyrene/poly(ethylene oxide) homopolymer blendsH. Ronald Thomas and James J. O'MalleyCite this: Macromolecules 1981, 14, 5, 1316–1320Publication Date (Print):September 1, 1981Publicati…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLiving polymerization of epoxide catalyzed by the porphyrin-chlorodiethylaluminum system. Structure of the living endTakuzo Aida and Shohei InoueCite this: Macromolecules 1981, 14, 5, 1166–1169Publication Date (Print):September 1, 1981Publication History Published online1 Ma…
Abstract Preirradiation grafting of acrylic acid onto poly(tetrafluoroethylene) film was studied. The trapped radicals formed upon irradiation are able to induce graft polymerization under appropriate conditions. The influence of the grafting conditions were analyzed kinetically. The grafting reaction begins close to…
Experimental studies of the diamond (111) surface are presented. While no intrinsic surface states have been found on the 1×1 surface, our new results in ultraviolet photoemission spectroscopy (15 eV?hν?25 eV) show evidence of a band of surface states on the 2×2/2×1 reconstructed surface. The band of surface states (w…
XPS measurements of core-level binding energies have been used to determine the interface Fermi-level position in (100) and (110) n-and p-type GaAs samples as a function of surface treatment. A variation in interface Fermi-level position of up to 0.7 eV has been observed. The difference in interface Fermi-level positi…
A molecular dynamics simulation of crystallization by the process of spontaneous homogeneous nucleation for a model of 4000 soft spheres with periodic boundary conditions is reported. When the amorphous system in the metastable state, at a point for which classical homogeneous nucleation theory predicts a vanishing of…
Surface photovoltage spectroscopy with clean 2×1 reconstructed Si(001) surfaces revealed indirect transitions from the bulk valence band into a band of empty surface states at (0.59 ± 0.04) eV above it. Chemisorption of atomic hydrogen is known to finally produce a Si(001)− 1×1:H structure and was found to remove thes…
In addition to its known effect in suppressing the deacetylation of the nucleosomal core histones, sodium butyrate in the concentration range 0.5 to 15 mM causes a selective inhibition of [32P]phosphate incorporation into histones H1 and H2A of cultured HeLa S3 cells. No commensurate general inhibition of phosphorylat…