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Pronounced proton and phosphorus-31 NMR spectral changes on meso-tetrakis(N-methylpyridinium-4-yl)porphyrin binding to poly[d(G-C)].cntdot.poly[d(G-C)] and to three tetradecaoligodeoxyribonucleotides: evidence for symmetric, selective binding to 5'CG3' sequences

Luigi G. Marzilli、Debra L. Banville、Gerald Zon1986-07-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPronounced proton and phosphorus-31 NMR spectral changes on meso-tetrakis(N-methylpyridinium-4-yl)porphyrin binding to poly[d(G-C)].cntdot.poly[d(G-C)] and to three tetradecaoligodeoxyribonucleotides: evidence for symmetric, selective binding to 5'CG3' sequencesLuigi G. Marz…

Molecular Sensors and Ion DetectionPorphyrin and Phthalocyanine ChemistrySynthesis and Characterization of Heterocyclic Compounds

Vapor pressures of poly(dimethylsiloxane) oligomers

Ora L. Flaningam1986-07-01Journal of Chemical & Engineering Data

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVapor pressures of poly(dimethylsiloxane) oligomersOra L. FlaningamCite this: J. Chem. Eng. Data 1986, 31, 3, 266–272Publication Date (Print):July 1, 1986Publication History Published online1 May 2002Published inissue 1 July 1986https://doi.org/10.1021/je00045a002RIGHTS & PE…

Corrosion Behavior and InhibitionPolymer crystallization and propertiesPolymer Nanocomposites and Properties

Statistical mechanics of helical worm-like chains. XV. Excluded-volume effects

Jiro Shimada、Hiromi Yamakawa1986-07-01The Journal of Chemical Physics

The expansion factors for the mean-square end-to-end distance and radius of gyration are studied for the helical worm-like (HW) chain with the excluded-volume effects incorporated in the Yamakawa–Stockmayer scheme. In this scheme, approximate closed expressions for them are expressed in terms of the excluded-volume pa…

Protein Structure and DynamicsMaterial Dynamics and PropertiesSpectroscopy and Quantum Chemical Studies

Diluted magnetic semiconductors: Issues and opportunities

J. K. Furdyna1986-07-01Journal of Vacuum Science & Technology A Vacuum Surfaces and Films

We review the crystallography, band structure, and optical, electrical, and magnetic properties of diluted magnetic semiconductors (DMS), with emphasis on ternary alloys of the type AII1−xMnxBVI (e.g., Hg1−xMnxTe). Considerable attention in the review is given to spectacular novel effects which arise from the selectiv…

ZnO doping and propertiesMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides

Atmospheric Corrosion Products on Al, Zn, and AlZn Metallic Coatings

John J. Friel1986-07-01CORROSION

Because the atmospheric corrosion products that form on the surface of Al, Zn, and AlZn hot-dip coatings on sheet steel are difficult to characterize, they have not been extensively studied In the past. In this study, the composition and structure of products formed in industrial and marine environments were identifie…

Corrosion Behavior and InhibitionConcrete Corrosion and DurabilityMaterial Properties and Processing

Maxwell-wagner relaxation and degradation of SrTiO3 and BaTiO3 ceramics

H. Neumann、G. Arlt1986-07-01Ferroelectrics

Ceramics of undoped SrTiO3 and BaTiO3 (at T > Tc) show a pronounced Maxwell-Wagner relaxation at ultra low frequencies. This indicates thin nonconducting barrier layers at the grain boundaries and some residual conductivity in the grain. Degradation of the ceramic starts when the electrical field, which develops at th…

Ferroelectric and Piezoelectric MaterialsSemiconductor materials and devicesElectronic and Structural Properties of Oxides

Influence of hydrogen ion activity and general acid-base catalysis on the rate of decomposition of hydrogen peroxide by a novel nonaggregating water-soluble iron(III) tetraphenylporphyrin derivative

Matthias F. Zipplies、William A. Lee、Thomas C. Bruice1986-07-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of hydrogen ion activity and general acid-base catalysis on the rate of decomposition of hydrogen peroxide by a novel nonaggregating water-soluble iron(III) tetraphenylporphyrin derivativeMatthias F. Zipplies, William A. Lee, and Thomas C. BruiceCite this: J. Am. C…

Electrochemical sensors and biosensorsPorphyrin and Phthalocyanine ChemistryElectrochemical Analysis and Applications

Internal Friction, Dielectric Loss, and Ionic Conductivity of Tetragonal ZrO 2 ‐3% Y 2 O 3 (Y‐TZP)

Martin Weller、H. Schubert1986-07-01Journal of the American Ceramic Society

The defect structure in 3 mol% Y‐TZP was studied by correlated internal friction, dielectric loss, and ionic conductivity experiments. A prominent mechanical and dielectric loss peak occurs in the temperature range between 380 and 550 K that depends on the frequency of measurement. The relaxation parameters were deter…

Ferroelectric and Piezoelectric MaterialsAdvanced ceramic materials synthesisAdvancements in Solid Oxide Fuel Cells

Model MDI/butanediol polyurethanes: Molecular structure, morphology, physical and mechanical properties

C. P. Christenson、M. A. Harthcock、M. D. Meadows 等 8 位作者1986-07-01Journal of Polymer Science Part B Polymer Physics

Abstract Model butanediol–MDI–polypropylene oxide polymers have been synthesized to explore the structure–property relationships in urethane/polyether polymers. The results of mechanical, thermal, and spectroscopic analyses agree remarkably well. The phase mixing in these polymers decreases with increasing hard‐segmen…

Polymer Nanocomposites and PropertiesPolymer composites and self-healingFlame retardant materials and properties

First structural characterization of a boron-centered radical: x-ray crystal structure of [Li(12-crown-4)2]+ [BMes3]-.bul.

Marilyn M. Olmstead、Philip P. Power1986-07-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFirst structural characterization of a boron-centered radical: x-ray crystal structure of [Li(12-crown-4)2]+ [BMes3]-.bul.Marilyn M. Olmstead and Philip P. PowerCite this: J. Am. Chem. Soc. 1986, 108, 14, 4235–4236Publication Date (Print):July 1, 1986Publication History Publ…

Organometallic Complex Synthesis and CatalysisMetal complexes synthesis and propertiesMagnetism in coordination complexes

Electrical conduction in polyimide films

G. M. Sessler、B. Hahn、D. Y. Yoon1986-07-01Journal of Applied Physics

Electrical conduction phenomena in polyimide (Kapton) films were studied with particular attention devoted to the separation of interface and bulk phenomena. The measurements were carried out with a variety of methods in the temperature range of 50 to 270 °C at electrical fields of 104 to 6×105 V/cm and at time interv…

Advanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsAnalytical Chemistry and Sensors

Coordination of lanthanides by two polyamino polycarboxylic macrocycles: formation of highly stable lanthanide complexes

M. F. Loncin、Jean F. Desreux、E. Merciny1986-07-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCoordination of lanthanides by two polyamino polycarboxylic macrocycles: formation of highly stable lanthanide complexesM. F. Loncin, J. F. Desreux, and E. MercinyCite this: Inorg. Chem. 1986, 25, 15, 2646–2648Publication Date (Print):July 1, 1986Publication History Publishe…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesPolyoxometalates: Synthesis and Applications

Polylactones, 8. Mechanism of the cationic polymerization of L,L‐dilactide

Hans R. Kricheldorf、Ruth Dunsing1986-07-01Die Makromolekulare Chemie

Abstract Various acidic compounds were tested as potential initiators of the cationic polymerization of L,L ‐dilactide. Regardless of solvent and temperature only trifluoromethanesulfonic acid and methyl triflate proved to be useful initiators. With methyl triflate as initiator L,L ‐dilactide polymerizes faster than d…

Advanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysis

Layering transitions in colloidal crystals as observed by diffraction and direct-lattice imaging

David H. Van Winkle、Cherry A. Murray1986-07-01Physical Review A

Layering transitions of colloidal crystals confined between two smooth glass surfaces have been studied by transmission diffraction of light as well as direct-lattice imaging with an optical microscope. The polystyrene spheres we studied have diameter \ensuremath{\Phi}=0.305 \ensuremath{\mu}m and a surface charge of \…

Material Dynamics and PropertiesSurfactants and Colloidal SystemsElectrostatics and Colloid Interactions

Ultrasonic investigation of the glass transition in glycerol

Yoon Hee Jeong、Sidney R. Nagel、S. Bhattacharya1986-07-01Physical Review A

We have measured, as a function of temperature and frequency, the velocity and attenuation of ultrasound near the glass transition of glycerol. The data are compared with that from frequency-dependent specific-heat measurements recently performed on the same sample. When the difference between adiabatic and isothermal…

Material Dynamics and PropertiesGlass properties and applicationsThermodynamic properties of mixtures

Significance of Internal Stresses for the Martensitic Transformation in Yttria‐Stabilized Tetragonal Zirconia Polycrystals During Degradation

Siegfried Schmauder、H. Schubert1986-07-01Journal of the American Ceramic Society

Various aspects of the tetragonal ( t ) to monoclinic ( m ) transformation during degradation have been studied experimentally and theoretically in yttria‐stabilized tetragonal zirconia polycrystals (Y‐TZP), i.e., polycrystalline t ‐ZrO 2 containing Y 2 O 3 in solution. Transmission electron microscopy (TEM) revealed…

Advanced ceramic materials synthesisAdvanced materials and compositesNuclear materials and radiation effects

Photoelectric Properties of Copper Phthalocyanine Langmuir-Blodgett Film

Mitsuru Yoneyama、Michio Sugi、Mitsuyoshi Saito 等 6 位作者1986-07-01Japanese Journal of Applied Physics

Photovoltaic and structural characteristics of Langmuir-Blodgett film photocells have been studied using asymmetrically substituted copper phthalocyanine (asy-CuPc). By polarized-light absorbance measurements, each phthalocyanine molecule was found to be arranged in the film with its ring facing towards the dipping di…

Lipid Membrane Structure and BehaviorThin-Film Transistor TechnologiesTransition Metal Oxide Nanomaterials

Plenary Lecture—1986: Effects of Alloy Composition and Microstructure on the Passivity of Stainless Steels

A. J. Sedriks1986-07-01CORROSION

The passive region of stainless steels (SSs), as defined by the low current regime between the active-passive transition and the pitting potential or the transpassive potential, is discussed in terms of solid solution alloying and microstructure. In considering the beneficial effects of solid solution alloying, emphas…

Hydrogen embrittlement and corrosion behaviors in metalsNon-Destructive Testing Techniques

The recent developments of thermotropic liquid crystalline polymers

Tai‐Shung Chung1986-07-01Polymer Engineering and Science

Abstract The historical development of both main‐chain (M.C.) and side‐chain (S.C.) liquid crystalline polymers (LCPs) is presented. Synthetic routes and characterization techniques for LCPs are introduced. Various approaches to reduce the melting points of M.C. LCPs and to increase the mesogenic order of S.C. LCPs ar…

Liquid Crystal Research AdvancementsBlock Copolymer Self-AssemblyAdvanced Materials and Mechanics