Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMiscibility enhancement via ion-dipole interactions. 1. Polystyrene ionomer/poly(alkylene oxide) systemsM. Hara and A. EisenbergCite this: Macromolecules 1984, 17, 7, 1335–1340Publication Date (Print):July 1, 1984Publication History Published online1 May 2002Published inissu…
Abstract The synthesis and phase behaviour of azo dye containing liquid crystalline side group copolymers are described. These Copolymers show the same electro‐optical effects as low molar mass guest‐host systems. Their macroscopic oriented nematic structure can be frozen in below the glass transition temperature resu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigh-resolution carbon-13 NMR study of silk fibroin in the solid state by the cross-polarization-magic angle spinning method. Conformational characterization of silk I and silk II type forms of Bombyx mori fibroin by the conformation-dependent carbon-13 chemical shiftsHazime…
Insulin adsorption isotherms on various materials have been measured to begin to clarify the role of material surface energy in insulin aggregation. Using 125I-insulin and direct gamma-counting of the exposed material, more insulin (per unit area) was adsorbed to hydrophobic materials (Teflon, Silastic) than to the hy…
High‐purity magnesium oxide powder was prepared by eon‐trolled decomposition of magnesium chloride hexahydrate. The MgO was hot‐pressed between 1720 and 2170 K and at pressures from 4.4 to 31 MPa. At 1873 K, the densification rates measured at fixed values of density were proportional to the power n = 3 of the applied…
The orbital magnetic susceptibility of two coupled graphite layers is calculated as a function of temperature and Fermi energy ($\ensuremath{\mu}$). The susceptibility is shown to be diamagnetic at small values of $\ensuremath{\mu}$, and paramagnetic at large values of $\ensuremath{\mu}$, with a paramagnetic peak at $…
This paper describes the work conducted at the British Gas Engineering Research Station (ERS) using laboratory tests of the BP and NACE type to assess the hydrogen induced cracking (HIC) resistance of pipeline steels. Various grades of linepipe and fittings steels have been studied, and the metallurgical parameters co…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyurethane waste recycling. 1. Glycolysis and hydroglycolysis of water-blown foamsJohn Gerlock, Jacob Braslaw, and Mikio ZinboCite this: Ind. Eng. Chem. Process Des. Dev. 1984, 23, 3, 545–552Publication Date (Print):July 1, 1984Publication History Published online1 May 200…
Die faszinierende Gruppe der Centropolyquinane ist durch Cyclopentanringe mit einem gemeinsamen, zentralen C-Atom gekennzeichnet. Die Titelverbindungen 1 und 2 sind überraschend einfach aus 2,2-disubstituierten 1,3-Indandiolen erhältlich.
Since free radical ring-opening polymerization made it possible to introduce functional groups, such as esters, carbonates, thioesters, and amides, into the backbone of an addition polymer, it was reasoned that simple hydrolysis of these copolymers would produce the desired oligomers that could be terminated with vari…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpin-state relaxation dynamics in iron(III) complexes: photochemical perturbation of the 2T .dblharw. 6A spin equilibrium by pulsed-laser irradiation in the ligand-to-metal charge-transfer absorption bandIan Lawthers and John J. McGarveyCite this: J. Am. Chem. Soc. 1984, 106…
The precipitation behavior of the nickel-base alloys Ni-Cr-22 Fe-18 Mo (Hastelloy-X) and Ni-Cr-22 Co-12 Mo (Inconel-617) has been investigated as a function of aging temperature. Hastelloy-X shows that M6C and TiN are primary precipitates and M12C, A3B2 (≈ Fe3Mo2), and M23C6 are secondary precipitates, while Inconel-6…
The changes in surface area and mesoporosity in aggregates of ∼0.01 μm cross‐section CaO particles when heated in CO 2 at 686°C were determined from N 2 adsorption isotherms. Initially, the surface area decreases rapidly with little change in porosity. When the surface area has decreased below ∼90 m 2 /g, surface area…
In this paper we describe systematically the forms, symmetries, and selection rules for the normal modes of vibration of a number of examples of surface-adsorbed species. The chosen cases are discussed for adsorption both on isolated sites and in regular arrays of surface sites such as are occupied at higher coverage.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew phases and chemical reactions in solid carbon monoxide under pressureAllen I. Katz, David Schiferl, and Robert L. MillsCite this: J. Phys. Chem. 1984, 88, 15, 3176–3179Publication Date (Print):July 1, 1984Publication History Published online1 May 2002Published inissue 1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of hydrogen bonding on the properties of iron porphyrin imidazole complexes. An internally hydrogen bonded imidazole ligandRobert Quinn, Janet Mercer-Smith, Judith N. Burstyn, and Joan S. ValentineCite this: J. Am. Chem. Soc. 1984, 106, 15, 4136–4144Publication Dat…
The series treats the mixing on the molecular scale (micromixing) of two miscible streams to bring about reaction between their constituents. The case where mixing and reaction have similar time constants is particularly interesting, although the framework is also valid for slow and instantaneous reactions. The case o…
The 4 × 4 matrix formalisms developed respectively by Berreman [ D. W. Berreman , J. Opt. Soc. Am.62, 502 ( 1972)] and by Yeh [P. Yeh , J. Opt. Soc. Am.69, 742 ( 1979)] for the description of the ellipsometric properties of planar multilayer anisotropic media are compared. Features of both are used to provide a framew…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT[(Me5C5)Rh(cis-Nb2W4O19)]2- isomers: synthesis, structure, and dynamicsC. J. Besecker, V. W. Day, W. G. Klemperer, and M. R. ThompsonCite this: J. Am. Chem. Soc. 1984, 106, 15, 4125–4136Publication Date (Print):July 1, 1984Publication History Published online1 May 2002Publis…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpontaneous vesiclesJames E. Brady, D. Fennell Evans, B. Kachar, and B. W. NinhamCite this: J. Am. Chem. Soc. 1984, 106, 15, 4279–4280Publication Date (Print):July 1, 1984Publication History Published online1 May 2002Published inissue 1 July 1984https://pubs.acs.org/doi/10.1…