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Investigation of solutions and gels of poly(4-methyl-1-pentene) in cyclohexane and decalin by viscosimetry, calorimetry, and x-ray diffraction. A new crystalline form of poly(4-methyl-1-pentane) from gels

Shaul M. Aharoni、Gérard Charlet、Geneviève Delmas1981-09-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInvestigation of solutions and gels of poly(4-methyl-1-pentene) in cyclohexane and decalin by viscosimetry, calorimetry, and x-ray diffraction. A new crystalline form of poly(4-methyl-1-pentane) from gelsShaul M. Aharoni, Gerard Charlet, and Genevieve DelmasCite this: Macrom…

Advanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and propertiesSynthesis and properties of polymers

Flame retardant viscose rayon containing a pyrophosphate

Rainer Wolf1981-09-01Industrial & Engineering Chemistry Product Research and Development

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFlame retardant viscose rayon containing a pyrophosphateRainer WolfCite this: Ind. Eng. Chem. Prod. Res. Dev. 1981, 20, 3, 413–420Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published inissue 1 September 1981https://pubs.acs.org/do…

Flame retardant materials and propertiesThermal and Kinetic AnalysisChemical Reactions and Mechanisms

Crystalline morphology of isothermally crystallized branched polyethylene

M. Glotin、L. Mandelkern1981-09-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystalline morphology of isothermally crystallized branched polyethyleneM. Glotin and L. MandelkernCite this: Macromolecules 1981, 14, 5, 1394–1404Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published inissue 1 September 1981https…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesRheology and Fluid Dynamics Studies

Estimation of the χ parameter for poly(dimethylsiloxane) solutions by the UNIFAC group contribution method

Moshe Gottlieb、M. Herskowitz1981-09-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEstimation of the χ parameter for poly(dimethylsiloxane) solutions by the UNIFAC group contribution methodMoshe GottliebMoshe GottliebMore by Moshe Gottlieb and Mordechay HerskowitzMordechay HerskowitzMore by Mordechay HerskowitzCite this: Macromolecules 1981, 14, 5, 1468–14…

Polymer crystallization and propertiesPolymer Nanocomposites and Properties

Optical activity induced in terbium(III) tris(pyridine-2,6-dicarboxylate) through association with certain chiral amino acids

Harry G. Brittain1981-09-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOptical activity induced in terbium(III) tris(pyridine-2,6-dicarboxylate) through association with certain chiral amino acidsHarry G. BrittainCite this: Inorg. Chem. 1981, 20, 9, 3007–3013Publication Date (Print):September 1, 1981Publication History Published online1 May 200…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesChemistry and Stereochemistry Studies

An a b i n i t i o study of the conformational energetics of N-benzylideneaniline

Joel Bernstein、Yaakov Engel、A. T. Hagler1981-09-01The Journal of Chemical Physics

A b initio calculations employing both minimal (STO–4G) and split valence (4–31G) basis sets have been used to study the conformational energy surface of N-benzylideneaniline (NBA). The former indicate that the minimum energy conformation of NBA corresponds to a rotation about the N–phenyl bond of ≊ 45° and a rotation…

Nonlinear Optical Materials ResearchStructural and Chemical Analysis of Organic and Inorganic CompoundsOrganic Chemistry Cycloaddition Reactions

Electronic Structure Theory

Paul S. Bagus、A. R. Williams1981-09-01IBM Journal of Research and Development

This paper reviews the history of IBM contributions over the last quarter century to electronic structure theory. The two main sections of the paper deal with large-scale computations in quantum chemistry and the study of the electronic structure of solids. The paper briefly discusses the methods of ab initio quantum…

Advanced Chemical Physics StudiesMachine Learning in Materials ScienceElectron and X-Ray Spectroscopy Techniques

Volume dependence of the elastic equation of state. 2. Solution-cured poly(dimethylsiloxane)

R. W. Brotzman、B. E. Eichinger1981-09-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVolume dependence of the elastic equation of state. 2. Solution-cured poly(dimethylsiloxane)R. W. Brotzman and B. E. EichingerCite this: Macromolecules 1981, 14, 5, 1445–1448Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published ini…

Material Properties and Applications

Weathering of glauconites: reversal of the glauconitization process in a soil profile in western France

Christian Courbe、B. Velde、Alain Meunier1981-09-01Clay Minerals

Abstract Polarizing microscope, electron microprobe and X-ray diffraction examination of minerals in a soil profile developed on a glauconite sand indicate that destabilization of glauconite can be a progressive process which appears to be the reverse of glauconitization. Glauconite in these soils appears to be destab…

Soil and Unsaturated FlowClay minerals and soil interactionsIron oxide chemistry and applications

Photoresponsive polymers. Dynamics of conformational changes of polyamides with backbone azobenzene groups

Masahiro Irie、W. Schnabel1981-09-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoresponsive polymers. Dynamics of conformational changes of polyamides with backbone azobenzene groupsMasahiro Irie and Wolfram SchnabelCite this: Macromolecules 1981, 14, 5, 1246–1249Publication Date (Print):September 1, 1981Publication History Published online1 May 200…

Photochromic and Fluorescence ChemistrySynthesis and properties of polymersPhotopolymerization techniques and applications

Characterization of the Reversion Process in Accelerated Sulfur Curing of Natural Rubber

C. H. Chen、Jack L. Koenig、J. Reid Shelton 等 4 位作者1981-09-01Rubber Chemistry and Technology

Abstract From studies of a series of accelerated sulfur vulcanizations of natural rubber, the structural basis of the reversion in macroscopic physical-mechanical properties has been determined. The amount of chemically induced trans -methine butadiene-like structure increases as the reversion process proceeds. When t…

Polymer Nanocomposites and PropertiesSynthesis and properties of polymersSilicone and Siloxane Chemistry

Radiation‐induced oxidative degradation of poly(vinyl chloride)

El‐Sayed A. Hegazy、Tadao Seguchi、Sueo Machi1981-09-01Journal of Applied Polymer Science

Abstract Gas evolution and oxygen consumption in the γ‐irradiation of PVC were studied. The gas evolution and the oxidative degradation are retarded by the presence of plasticizers and stabilizers. The G (HCI) and G (H 2 ) and 8 and 0.24 for the irradiation of pure PVC under vacuum and 0.02 and 0.14 for that of plasti…

Polymer crystallization and propertiesPhysical Unclonable Functions (PUFs) and Hardware SecurityPolymer Science and PVC

Reactions of metalloporphyrin .pi. radicals. 2. Thin-layer spectroelectrochemistry of zinc tetraphenylporphyrin cation radicals and dications in the presence of nitrogenous bases

Karl M. Kadish、Rathbun K. Rhodes1981-09-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of metalloporphyrin .pi. radicals. 2. Thin-layer spectroelectrochemistry of zinc tetraphenylporphyrin cation radicals and dications in the presence of nitrogenous basesK. M. Kadish and R. K. RhodesCite this: Inorg. Chem. 1981, 20, 9, 2961–2966Publication Date (Prin…

Electrocatalysts for Energy ConversionPorphyrin and Phthalocyanine ChemistryElectrochemical Analysis and Applications

Diffusion and induced crystallization in polycarbonate

Robert A. Ware、Steven Tirtowidjojo、Claude Cohen1981-09-01Journal of Applied Polymer Science

Abstract The study of the effect of thickness on the mass uptake is shown to be quite helpful in the understanding of the complexities of polymer/organic penetrant sorption behavior. Isothermal diffusion results for methanol, acetone, and carbon tetrachloride in polycarbonate plates and films of various thicknesses ra…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesMembrane Separation and Gas Transport

Ionic Conductivity in Lithium and Lithium‐Sodium Beta Alumina

J.L. Briant、G. C. Farrington1981-09-01Journal of The Electrochemical Society

This paper presents measurements of ionic conductivity in single crystals of Li + and mixed Li + /Na + beta alumina. The crystals were prepared by ion exchange of Na + beta alumina crystals in , , or with added. The measured room temperature conductivity of Li + beta alumina, about , is higher than earlier values. The…

Advanced Battery Materials and TechnologiesMicrowave Dielectric Ceramics SynthesisThermal Expansion and Ionic Conductivity

Dioxygen and nitric oxide complexes of rhodium porphyrins

Bradford B. Wayland、Alan R. Newman1981-09-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDioxygen and nitric oxide complexes of rhodium porphyrinsBradford B. Wayland and Alan R. NewmanCite this: Inorg. Chem. 1981, 20, 9, 3093–3097Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published inissue 1 September 1981https://pubs…

Electrochemical sensors and biosensorsPorphyrin and Phthalocyanine ChemistryRadiopharmaceutical Chemistry and Applications

Model calculations for the coordination ofFe3+andMn2+ions in oxide glasses

C. M. Brodbeck、R. R. Bukrey1981-09-01Physical review. B, Condensed matter

Applying the Newman superposition model to the ligand-field splitting of tetrahedrally and octahedrally coordinated ${\mathrm{Fe}}^{3+}$ and ${\mathrm{Mn}}^{2+}$ ions in glass, we have obtained analytical expressions for the dependence of the spin-Hamiltonian parameters ${b}_{2}^{m}$ ($D$ and $E$) on the distortion fr…

Glass properties and applicationsPhotochemistry and Electron Transfer StudiesPhase-change materials and chalcogenides

Physical aging studies of semicrystalline poly(ethylene terephthalate)

Martin R. Tant、Garth L. Wilkes1981-09-01Journal of Applied Polymer Science

Abstract Physical aging of semicrystalline poly(ethylene terephthalate) has been investigated as a function of crystalline content. Stress–strain, stress relaxation, and differential scanning calorimetry experiments were used to monitor the physical aging process. Both the overall extent and the rate of physical aging…

Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties

On the application of phase relationships to complex structures. XVIII.RANTAN–randomMULTAN

Jia-xing Yao1981-09-01Acta Crystallographica Section A

To overcome the disadvantages of a small starting set in MULTAN a technique is described whereby a large number of phases are given random values with low weights and then refined by a weighted tangent formula. The effectiveness of the process depends quite critically on assigning suitable weights to phase estimates a…

Rock Mechanics and ModelingGeophysical Methods and ApplicationsX-ray Diffraction in Crystallography