Materials Literature
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Glasses containing as little as 5 mol % B2O3 have been made in the ternary system PbO-PbF2-B2O3. Glass transformation and crystallization temperatures, thermal expansion behavior, and electrical conductivity of these glasses have been measured. The lead fluoroborate glasses appear to be anion conductors, with conducti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComparative study of redox reactions of polyaniline films in aqueous and nonaqueous solutionsAkira Watanabe, Kunio Mori, Maki Mikuni, Yoshiro Nakamura, and Minoru MatsudaCite this: Macromolecules 1989, 22, 8, 3323–3327Publication Date (Print):August 1, 1989Publication Histor…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntrinsic viscosity of oligo- and polystyrenesYoshiyuki Einaga, Hitoshi Koyama, Toshiki Konishi, and Hiromi YamakawaCite this: Macromolecules 1989, 22, 8, 3419–3424Publication Date (Print):August 1, 1989Publication History Published online1 May 2002Published inissue 1 August…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTShear modification of low-density polyethylene: its origin and its effect on the basic rheological functions of the meltP. J. R. Leblans and C. BastiaansenCite this: Macromolecules 1989, 22, 8, 3312–3317Publication Date (Print):August 1, 1989Publication History Published onl…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and structural characterization of a six-coordinate 21-thiaporphyrin complex: RhIII(STPP)Cl2 (STPP = tetraphenyl-21-thiaporphyrin anion)Lechoslaw Latos-Grazynski, Jerzy Lisowski, Marilyn M. Olmstead, and Alan L. BalchCite this: Inorg. Chem. 1989, 28, 17, 3328–333…
G\"utlich et al. [Chem. Phys. Lett. 91, 348 (1982)] observed an ``unusual'' two-step high-spin\ensuremath{\rightleftarrows}low-spin transition in the spin crossover compound [Fe(2-pic${)}_{3}$]${\mathrm{Cl}}_{2}$\ensuremath{\cdot}${\mathrm{C}}_{2}$${\mathrm{H}}_{5}$OH. Recently, Petrouleas and Tuchagues [Chem. Phys. L…
Ferroelectric microregion (FMR) in SrTiO3 has been studied by means of Raman scattering. With lowered temperature, FMR, shape of which is ellipsoidal, increases the size concurrently with the correlation length. The ferroelectric transition of solid solution system such as Sr1−x Ca x TiO3 sets in when the FMR occupy t…
Interconversion of D- and L-isomers of 3-hydroxy-decanoyl-CoA was catalyzed by rat liver homogenate. Cation exchange chromatography followed by ammonium sulfate precipitation and PBE-94 chromatofocusing column was used to separate the peroxisomal bifunctional protein, the classic 2-enoyl-CoA hydratase (crotonase), and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSingle and double photoionization processes in naphthalene between 8 and 35 eVEckart Ruehl, Stephen D. Price, and Sydney LeachCite this: J. Phys. Chem. 1989, 93, 17, 6312–6321Publication Date (Print):August 1, 1989Publication History Published online1 May 2002Published iniss…
▪ Abstract The phase-field method has recently emerged as a powerful computational approach to modeling and predicting mesoscale morphological and microstructure evolution in materials. It describes a microstructure using a set of conserved and ...Read More
A simple model for tapering optical glass fibers is described and analysed to show that unless the initial conditions have certain spatial singularities, the cross-sectional area cannot be made to vanish in finite time. The model is applied to an industrial process in which the fiber has piecewise uniform temperature.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCalifornium-252 plasma desorption mass spectrometry as a tool for studying very large clusters; evidence for vertex-sharing icosahedra as components of Au67(PPh3)14Cl8John P. Fackler Jr., C. J. McNeal, L. H. Pignolet, and R. E. P. WinpennyCite this: J. Am. Chem. Soc. 1989, 1…
The densification of Al 2 O 3 ‐TiC composites is detrimentally affected by chemical reactions between Al 2 O 3 and TiC. These reactions must be suppressed in order to promote sintering. In this study, the specific reactions occurring in Al 2 O 3 ‐TiC composites were modeled, using thermodynamic calculations, and verif…
▪ Abstract The phase-field method has recently emerged as a powerful computational approach to modeling and predicting mesoscale morphological and microstructure evolution in materials. It describes a microstructure using a set of conserved and ...Read More
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemical alignment regulation of a nematic liquid crystal by Langmuir-Blodgett layers of azobenzene polymers as "command surfaces"Takahiro Seki, Takashi Tamaki, Yasuzo Suzuki, Yuji Kawanishi, Kunihiro Ichimura, and Koso AokiCite this: Macromolecules 1989, 22, 8, 3505–35…
The phase change, densification, and microstructure development of ZnO doped with both Bi 2 O 3 and Sb 2 O 3 are studied to better understand the sintering behavior of ZnO varistors. The densification behavior is related to the formation of pyrochlore and liquid phases; the densification is retarded by the former and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLarge intensity enhancement of the spin-forbidden 4A2g .fwdarw. 2Eg transition in chromium(III)-semiquinone complexesC. Benelli, A. Dei, D. Gatteschi, H. U. Guedel, and L. PardiCite this: Inorg. Chem. 1989, 28, 16, 3089–3091Publication Date (Print):August 1, 1989Publication…
Static magnetic susceptibility has been investigated in two cobalt-based diluted magnetic semiconductors, ${\mathrm{Zn}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$${\mathrm{Co}}_{\mathrm{x}}$S and ${\mathrm{Zn}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$${\mathrm{Co}}_{\mathrm{x}}$Se. The measurements were performed in the temp…
Abstract Binding of a noble metal salt, e.g., PdCl to a functional ligand on a polymer surface, e.g., amine, quaternary ammonium, sulphonic acid, followed by reduction to zerovalent state and subsequent reductive deposition of transition metal ions, such as copper, nickel, and cobalt, provides a sequence of events lea…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInvestigation of the microphase separation transition in low-molecular-weight diblock copolymersJohn N. Owens, Irena S. Gancarz, Jeffrey T. Koberstein, and Thomas P. RussellCite this: Macromolecules 1989, 22, 8, 3380–3387Publication Date (Print):August 1, 1989Publication His…