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Abstract Thermally stimulated discharge has been used in the past to diagnose and estimate the magnitude of electrical polarization in polymers. Nevertheless, molecular characterization of operative phenomena by this technique alone is often a difficult task. In the present work, infrared attenuated total reflection s…
A method is presented for the exact nonlinear analysis of reinforced and prestressed concrete slender members subject to biaxial bending. The main feature of the method is the procedure that analyzes the stress-strain state of sections, under given axial force and biaxial moment. The outlined procedure, applied to a n…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTWarming-induced reactions in .gamma.-irradiated naphthalene solutions in Freon-mixture glassAkira Kira, Takashi Nakamura, and Masashi ImamuraCite this: J. Phys. Chem. 1977, 81, 6, 511–516Publication Date (Print):March 1, 1977Publication History Published online1 May 2002Publ…
The adsorption of n‐decylamine on zinc from acidic chloride solution has been studied using the corrosion technique. The corrosion rates of zinc in acidic chloride solution containing n‐decylamine are measured as a function of n‐decylamine concentration. The degree of surface coverage as calculated from the corrosion…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetic isotope effect on proton tautomerism in tetraarylporphyrinsS. S. Eaton and G. R. EatonCite this: J. Am. Chem. Soc. 1977, 99, 5, 1601–1604Publication Date (Print):March 1, 1977Publication History Published online1 May 2002Published inissue 1 March 1977https://pubs.acs…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn electron spin-lattice relaxation mechanism involving tunneling modes for trapped radicals in glassy matrixes. Theoretical development and application to trapped electrons in .gamma.-irradiated ethanol glassesMichael K. Bowman and Larry KevanCite this: J. Phys. Chem. 1977,…
Abstract The crystal structure of malachite is refined ( R = 0.021) with the intensity values of 635 independent neutron reflexions from a single crystal, rather free from absorption and extinction. Concerning the structural geometry, no essential deviations occur from the known results of x-ray diffraction. The therm…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMetal-metal bond cleavage reactions. The crystallization and solid state structural characterization of cadmium tetracarbonyliron, CdFe(CO)4Richard D. Ernst, Tobin J. Marks, and James A. IbersCite this: J. Am. Chem. Soc. 1977, 99, 7, 2090–2098Publication Date (Print):March 1…
Abstract In spite of the importance of fatigue behavior in engineering plastics, relatively few fundamental studies have been made of the effects of polymer structure, molecular weight, composition, and morphology on fatigue crack propagation (FCP). As, part of a broad program for the study of such effects, the role o…
Samples in the composition range Fe0.95O-Fe0.88O quenched from about 1000°C, have been studied by electron diffraction/microscopy with special emphasis on the dark-field technique. The set of morphologies obtained by quenching and annealing confirms a spinodal-like decomposition in an oxygen-rich and an almost stoichi…
A unified Landau theory is introduced for the nematic, smectic $A$, and smectic $C$ phases using the director $\stackrel{\ensuremath{\rightarrow}}{\mathrm{n}}$ for the nematic order parameter, the complex order parameter $\ensuremath{\psi}$ for the smectic planes, and the vector $\stackrel{\ensuremath{\rightarrow}}{\e…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT(Acetylacetonato)[(-)-N-alkylephedrinato]dioxomolybdenum, a new class of chiral chelate complexes which catalyze asymmetric epoxidation of allylic alcoholShunichi Yamada, Toshio Mashiko, and Shiro TerashimaCite this: J. Am. Chem. Soc. 1977, 99, 6, 1988–1990Publication Date (…
Cell adhesion and spreading were studied on sulphonated polystyrene dishes in serum-free saline (Mn, Na, Cl, buffer) i.e., without an intervening protein layer. Spreading as a function of surface charge density, SCD, peaked around 2-10 negative charges per square nanometer, corresponding to a monomolecular layer of su…
Abstract The early development of ideas on cation exchange from 1850 to 1900 is described. From 1900 to the present, the coverage has been divided as the work has concentrated on soil acidity, alkali soils, and classical cation exchange studies. The discovery of crystallinity in soil clays and the rediscovery of the i…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudy of oxygen isotopic exchange over ultraviolet irradiated anatase samples and comparison with the photooxidation of isobutane into acetoneHenri Courbon, Marc Formenti, and Pierre PichatCite this: J. Phys. Chem. 1977, 81, 6, 550–554Publication Date (Print):March 1, 1977Pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDomain-Boundary Structure of Styrene-Isoprene Block Copolymer Films Cast from Solutions. 2. Quantitative Estimation of the Interfacial Thickness of Lamellar Microphase SystemsTakeji Hashimoto, Akira Todo, Hideyuki Itoi, and Hiromichi KawaiCite this: Macromolecules 1977, 10,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTemperature Dependence of Hydrogen Bonding in Toluene Diisocyanate Based PolyurethanesC.S. Paik Sung and N S SchneiderCite this: Macromolecules 1977, 10, 2, 452–458Publication Date (Print):March 1, 1977Publication History Published online1 May 2002Published inissue 1 March 1…
Summary Adsorption isotherms, the infrared spectra of adsorbed species, and the amount of hydroxyl released when oxalate is adsorbed, all indicate that adsorption of oxalate, benzoate and phosphate at low solution concentrations occurs only on A1(OH)(H 2 O) sites exposed on edge faces of the platy gibbsite crystals st…
A mathematical model is developed and methods of analysis are formulated for determining the structural response of the single-lap and symmetric-lap joints composed of generally orthotropic material systems. Analytical results are compared in both instances with experimental data and excellent correlation is seen to e…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStable heptamethine pyrylium dyes that absorb in the infraredG. A. Reynolds and K. H. DrexhageCite this: J. Org. Chem. 1977, 42, 5, 885–888Publication Date (Print):March 1, 1977Publication History Published online1 May 2002Published inissue 1 March 1977https://pubs.acs.org/d…