Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInclusion Compound Formed between Poly(L-lactic acid) and UreaC. Howe, N. Vasanthan, C. MacClamrock, S. Sankar, I. D. Shin, I. K. Simonsen, and A. E. TonelliCite this: Macromolecules 1994, 27, 25, 7433–7436Publication Date (Print):December 1, 1994Publication History Publishe…
A structural transition in the nematic liquid crystal 4'-pentyl-4-cyanobiphenyl (5CB-\ensuremath{\beta}${\mathrm{d}}_{2}$) doped with chiral agents CB15 and CE2, confined to submicrometer cylindrical cavities of alumina membranes, is detected by deuterium nuclear magnetic resonance ${(}^{2}$H NMR). These cavities have…
Measurements of the complete set of thermogalvanomagnetic coefficients of Sn-doped Bi95Sb5 have been carried out from liquid nitrogen up to room temperature as a function of magnetic field strength and crystallographic direction (parallel and perpendicular to the trigonal axes). The dependences of the transport coeffi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhase-Selective Formation of Titanylphthalocyanine Thin Films by Organic Molecular Beam DepositionAkira Yamashita, Tohru Maruno, and Takayoshi HayashiCite this: J. Phys. Chem. 1994, 98, 48, 12695–12701Publication Date (Print):December 1, 1994Publication History Published onl…
Phase separation of a binary Lennard-Jones fluid confined in a cylindrical pore is studied by molecular dynamics simulations. The wetting interaction of the fluid molecules with the walls of the single pore is derived from the Lennard-Jones potential. Existence of long-lived metastable states is found even in the pres…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOn Microphase Separation of Block Copolymers In an Electric Field: Four Universal ClassesEugene GurovichCite this: Macromolecules 1994, 27, 25, 7339–7362Publication Date (Print):December 1, 1994Publication History Published online1 May 2002Published inissue 1 December 1994ht…
The microstructure and mechanical properties of magnesium-gadolinium and magnesium-gadolinium-yttrium alloys have been studied. There are extended magnesium solid solution areas in the systems narrowing as temperature lowers. The decomposition of the magnesium supersaturated solid solutions results in significant stre…
When a sufficient density of permanent random crosslinks is incorporated into a system of macromolecules, the system undergoes a continuous equilibrium phase transition from a liquid to an amorphous solid state. In this solid state, a certain fraction of monomers are entirely delocalised. The remaining fraction ( i.e.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymerization by Hydrosilation. 2. Preparation and Characterization of High Molecular Weight Poly[(1,1,3,3-tetramethyldisiloxanyl)ethylene] from 1,3-Dihydridotetramethyldisiloxane and 1,3-DivinyltetramethyldisiloxanePetar R. Dvornic, Vesna V. Gerov, and Milutin N. Govedaric…
Abstract Direct evidence for the locations of the hydrogen atoms in the dihydrogenhexaniobate anion has been obtained by a single-crystal X-ray diffraction method. Hexasodium dihydrogenhexaniobate icosahydrate (1), Na6[H2Nb6O19]·20H2O, crystallizes in triclinic form, space group , a = 10.364(2), b = 12.205(2), c = 9.0…
This paper reports an extensive study of the static (spontaneous polarization, ${\mathit{P}}_{\mathit{s}}$, tilt angle \ensuremath{\theta}, and pitch) and dynamic properties of a ferroelectric liquid-crystalline polymer. It is shown that a ferroelectric liquid-crystalline polymer (diluted polysiloxane) exhibits physic…
In conventional energy conversion processes, the fuel combustion is usually highly irreversible, and is thus responsible for the low overall efficiency of the power generation process. The energy conversion efficiency can be improved if immediate contact of air and fuel is prevented. One means to prevent this immediat…
Nickel hydroxide thin films were prepared onto transparent conductive tin oxide (NESA) substrates by potentiostatic electrolyses of a nickel ammine complex solution at various potentials (0.6 to 1.5 V vs. Ag / AgCl ). Nickel hydroxide thin film (F0.7) obtained at relatively lower anodic potential (0.7 V) showed enhanc…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDNA Interactions with Porphyrins Bearing Ammonium Side ChainsHans-Joerg Schneider and Manxue WangCite this: J. Org. Chem. 1994, 59, 24, 7473–7478Publication Date (Print):December 1, 1994Publication History Published online1 May 2002Published inissue 1 December 1994https://pu…
Synchrotron radiation has allowed structure detn. by single-crystal methods using a flake of material 5 μm thick from a specimen of the natural mineral, Pima County Arizona. The crystals are monoclinic and twinned. As in the related mineral hydrozincite, Zn5(OH)6(CO3)2 [Ghose ,1964], there are double layers of close-p…
Composite materials were prepared from waste woodflour and polypropylene (PP). In order to enhance the chemical affinity between hydrophilic woodflour and hydrophobic polymer, the surface of the filler was modified by coating with a mixture of PP and a polymeric isocyanate, while PP was mixed with two types of maleate…
The reaction of skin and soft tissue to shear force applied externally to the skin surface has been investigated by the experimental measurement of skin blood flow and model analysis of internal stresses. Skin blood flow has been measured using laser Doppler flowmetry while variable shear forces and normal force were…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPeroxometalate Catalyzed Oxidations with Hydrogen Peroxide in Biphasic Reaction Media: Reactions in Inverse EmulsionsRonny Neumann and Alexander M. KhenkinCite this: J. Org. Chem. 1994, 59, 25, 7577–7579Publication Date (Print):December 1, 1994Publication History Published o…
The Fermi surface of the molecular conductor (DMe-DCNQI${)}_{2}$Cu (DMe-DCNQI=2,5-dimethyl-N,N'-dicyanoquinonediimine) has been investigated by the de Haas--van Alphen method. Seven different oscillations with heavy cyclotron masses are observed at frequencies lower than 3000 T. These effects arise from the three-dime…
Article Numerical Data and Functional Relationships in Science and technology – New Series. was published on December 1, 1994 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 209, issue 12).