Materials Literature
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Based on an introductory, graduate-level course given by Swartz at New Mexico State U., this textbook, written for students with a moderate knowledge of point set topology and integration theory, explains the principles and theories of functional analysis and their applications, showing the interpla
Abstract Phase transitions in the α‐, β‐, γ‐, and ϵ‐polymorphs of 2,4,6,8,10,12‐hexanitrohexaazaisowurtzitane (HNIW) have been studied as a function of temperature. Described are the results of high temperature equilibrium solvation studies coupled with Fourier transform infrared spectroscopy (FTIR) for the identifica…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemical Formation of the Anion Radical of Zinc Phthalocyanine and Analysis of the Absorption and Magnetic Circular Dichroism Spectral Data. Assignment of the Optical Spectrum of [ZnPc(-3)]-John Mack and Martin J. StillmanCite this: J. Am. Chem. Soc. 1994, 116, 4, 1292–…
The large-scale commercial use of synthetic polymers and their disposal in the environment is a phenomenon less than half a century old, a duration which is minuscule in the evolutionary time scale required for microbial evolution on earth. Consequently, unlike their naturally-occurring counterparts, the biopolymers,…
Ti−Ni thin films with three different compositions (Ti−48at.%Ni, Ti−50at.%Ni and Ti−51 at.%Ni) were prepared by sputtering. The sputter-deposited films were annealed at 773 K for 1 h to achieve crystallization. The stress-strain curves for the annealed films were measured over a wide temperature range (143–473 K) usin…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSensitive Glucose-Induced Change of the Lower Critical Solution Temperature of Poly[N,N-(dimethylacrylamide)-co-3-(acrylamido)-phenylboronic acid] in Physiological SalineKazunori Kataoka, Hiroaki Miyazaki, Teruo Okano, and Yasuhisa SakuraiCite this: Macromolecules 1994, 27,…
Abstract Aliphatic homopolyesters and copolyesters based on 1,3‐propanediol and containing terephthalic acid as aromatic compounds and sebacic acid as aliphatic compound were synthesized by condensation in bulk. Intrinsic viscosity and weight‐average molecular weight were measured. Melting temperatures were studied by…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of Surface Water and Base Catalysis on the Silanization of Silica by (Aminopropyl)alkoxysilanes Studied by X-ray Photoelectron Spectroscopy and 13C Cross-Polarization/Magic Angle Spinning Nuclear Magnetic ResonanceKrishna M. R. Kallury, Peter M. Macdonald, and Michael…
Pretreatment of rats with hesperidin (50 and 100 mg kg-1, s.c.) reduced the paw oedema induced by carrageenan by 47 and 63%, respectively, within 5 h. The effect was equivalent to that produced by indomethacin (10 mg kg-1, p.o.), although unrelated to the administered dose, particularly at high doses. At 100 mg kg-1 h…
The optical properties of manganese‐activated zinc silicate Zn 2 ( 1 − x ) Mn 2 x SiO 4 are investigated using pulse selective photon excitation. The light response due to the 4 T 1 g ‐ 6 A 1 g transition is directly linked to the relative concentration of isolated Mn 2+ and Mn 2+ pairs in this structure. The decay cu…
Summary Predicting potential scaling problems can be difficult, and numerous saturation indices and computer algorithms have been developed to determine if, when, and where scaling will occur. The Langelier, Stiff-Davis, and the Oddo-Tomson saturation indices, all widely used in the oil field, are compared and contras…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTemperature-Responsive Interpenetrating Polymer Networks Constructed with Poly(acrylic acid) and Poly(N,N-dimethylacrylamide)Takashi Aoki, Masahiko Kawashima, Hiroki Katono, Kohei Sanui, Naoya Ogata, Teruo Okano, and Yasuhisa SakuraiCite this: Macromolecules 1994, 27, 4, 947…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic Structure Pseudopotential Calculations of Large (.apprx.1000 Atoms) Si Quantum DotsLin Wang Wang and Alex ZungerCite this: J. Phys. Chem. 1994, 98, 8, 2158–2165Publication Date (Print):February 1, 1994Publication History Published online1 May 2002Published inissue…
INTRODUCTORY REMARKS. The Origin of Surface Properties. Dynamics of Polymer Surfaces. CHARACTERIZATION METHODS. Spectroscopic Methods. Surface Energetics and Contact Angle. New and Emerging Methods. MODIFICATION TECHNIQUES. Physical Modifications. Chemical Modifications. Bulk Modifications. APPLICATIONS. Wettability.…
A new processing strategy based on atmospheric pressure sintering is presented for obtaining dense SiC‐based materials with microstructures consisting of (i) uniformly distributed elongate‐shaped α‐SiC grains and (ii) relatively high amounts (20 vol%) of second‐phase yttrium aluminum garnet (YAG). This strategy entail…
Edible composite films comprised of wheat gluten as the structural matrix and various concentrations of different lipids as the moisture barrier component were tested for water vapour permeability, dispersion in water, opacity and mechanical properties. the effects of lipids on the functional properties of gluten‐base…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation, Clathration Ability, and Catalysis of a Two-Dimensional Square Network Material Composed of Cadmium(II) and 4,4'-BipyridineMakoto Fujita, Yoon Jung Kwon, Satoru Washizu, and Katsuyuki OguraCite this: J. Am. Chem. Soc. 1994, 116, 3, 1151–1152Publication Date (Pri…
We have developed a composite vascular prosthesis with the inner blood interfacing layer made of a porous elastomeric membrane of spun Corethane fibers (10-15 microns in diameter, pore size 30-60 microns) impregnated with a gelatin-heparin complex and an outer soft tissue interfacing warp knitted Dacron sheath. Forty-…
MAxTe2 (M=Ta, Nb and A=Si, Ge) compounds show a great variety of commensurately and incommensurately modulated structures depending on the value for x. It is shown that the theory of superspace groups can be used to standardize the structures and to predict the 3D symmetry of the commensurately modulated structures. T…
Abstract The physicochemical changes of silk fibers irradiated with γ‐rays was studied in relation to the amount of absorbed does in the range 0–21 Mrad. The yellowing index ( b/L ) suddenly increased at low dose for both raw and degummed silk fibers. An equilibrium value was attained from 10 Mrad upward. The tensile…