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  • Polymer and Materials Science  (870)
  • General Chemistry  (518)
  • 1965-1969  (1,388)
Collection
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 80 (1968), S. 662-663 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-2: Polymer Physics 5 (1967), S. 343-360 
    ISSN: 0449-2978
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The results of detailed measurements of osmotic pressure, light scattering, and viscosity of poly(vinyl chloride) solutions are used to establish the molecular weight dependence of [η] and A2, to estimate the unperturbed dimensions of the poly(vinyl chloride) molecule, and to analyze critically the [η]-M correlations published hitherto.
    Additional Material: 6 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 81 (1969), S. 453-463 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: σ-Gebundene organische Gruppen in Übergangsmetallkomplexen können sich in π-bindende Liganden umlagern und umgekehrt; das klassische Beispiel ist die Bildung von π-Arenchromkomplexen aus σ-Arylchromverbindungen. Derartige Umlagerungen können u. a. durch Reaktionen des Metalls oder des Liganden sowie durch Wanderung oder Einschiebung eines Liganden induziert werden. An mehreren technischen Prozessen, z. B. der Polymerisation und Isomerisierung von Olefinen oder der Hydroformylierung von Olefinen, sind σ-π-Umlagerungen beteiligt.
    Additional Material: 1 Ill.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 81 (1969), S. 939-939 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Letters 4 (1966), S. 943-945 
    ISSN: 0449-2986
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 8 (1969), S. 410-420 
    ISSN: 0570-0833
    Keywords: Rearrangement ; Organometallic compounds ; Arene ligands ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: σ-Bonded organic groups in transition-metal complexes can rearrange to π-bonding ligands and vice versa: the classic example is the formation of π-arenechromium complexes from σ-arylchromium compounds. Rearrangements of this kind can be induced, inter alia, by reactions of the metal or of the ligand, as well as by migration or insertion of a ligand. Rearrangements play a role in many industrial processes, including the polymerization and isomerization of olefins and the hydroformylation of olefins.
    Additional Material: 2 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 7 (1968), S. 639-639 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 19 (1968), S. 1032-1042 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion of brass in ammonium chloride solutionsThe corrosion behaviour of brass (Cu77Zn21A/2, with and without addition of As) has been investigated in 0.01 to 1 M ammonium chloride solution of PH 4 and 2, and in solutions 1 M in chloride ion, with variable Na+ and NH+4 concentrations (total concentration 1 M in each case), at pH 4 and 2. While arsenium-free brass was attacked by dezincification in most cases, intercrystalline corrosion was found on As-containing brass. The latter type of corrosion is found already at As contents as low as 0.01%. In a medium 1 M in chloride ion intercrystalline corrosion is found at PH 2, irrespective of the ammonium ion concentration, while at PH 4 intercrystalline corrosion is found only at higher ammonium ion concentrations (practically 1 M).The intercrystalline corrosion was found to be due to the segregation of Zn and As respectively at the grain boundaries and to the influence of As on the stability of the CuCl-2 formed by the anodic reaction. The influence of the solution composition on the progress in time of the intercrystalline corrosion is explained.
    Notes: Es wurde das Korrosionsverhalten von Messing der Type Cu77ZnZlA12, mit und ohne Arsen, in 0,01 bis 1 m NH4Cl-Lötsungen von PH 4 und 2 sowie in 1 M Cl--Lösungen mit veränderlicher Na+-und N+4-Konzentration (Gesarntkonzentration jeweils 1 m) bei PH 2 und 4 untersucht. Während arsenfreies Messing in den meisten Fällen entzinkt wurde, trat bei dem arsenhaltigen Messing in den moisten Fällen interkristalline Korrosion ein. Die interkristalline Korrosion wird bereits bei einem Gehalt von 0,01% As hervorgerufen. In einem Medium mit 1 m C1- findet bei PH 2 interkristalline Korrosion unabhängig vom Gehalt an Ammoniumionen statt, während bei PH 4 die interkristalline Korrosion erst bei höheren NH+4- Ionen-Konzentration, praktisch Lei 1 m, auftritt.Als Ursache der interkristallinen Korrosion wurden die Ausscheidung von Zink bzw. Arsen an den Korngrenzen sowie der Einfluß des Arsens auf die Stabilität des durch die anodische Reaktion entstehendenden CuCl-2 ermittelt. Der Einfluß der Zusammensetzung der Lösung auf den zeitlichen Verlauf der interkristallinen Korrosion wird erklärt.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Potential testing metods for corrosion-induced changes of teh mechanical propeties of materialsThe well-known methods of strength testing enable relations to be established between corrosion and mechanical strength. The influence of a defined orrosion (defined corrosion system and conditions) on tensile strangth, notch-toughness, alternate bending srangth and Vickers hardness is presented with differet veriales being used as the parameters in each corrosive system. Testing the strength behaviour under conditions of corrosion with simultaneous mechanical stresses is made in concentrtion with corrosion fatigue, sress corrosion cracking and creep testing.
    Notes: Die bekannten Methoden der Festigkeitsprüfung ermöglichen die Feststellung von Beziehungen zwischen Korrosion und Festigkeit. Der Einfluß einer definierten Korrosion (bestimmtes Korrosionssystem und bestimmte Bedingungen) auf Zugfestigkeit, Schlagzähigkeit, Biegewechselfestigkeit und Vickers-Härte wird dargestellt, wobei für jedes Korrosionssystem verschiedene korrosionsgrößen als Parameter dienen. Die Prüfung des Festigkeitsverhaltnens bei Korrosion unter gleichzeitiger mechanischer Beanspruchung erfolgt im Rahmen der Untersuchung der Schwingungsrißkorrosion, Spanungsrißkorrosion und des Zeitstandverhaltnes.
    Additional Material: 7 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 18 (1967), S. 205-210 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Laminated coating systemsAfter the introductory discussion of the selection of suitable natural and synthetic textiles and of coating agents for the preparation of laminated coating systems (coats with fabric insertions), an illustrated survey of some magnitude is given of coating techniques for laminated coating system on metal surfaces. It is shown in detail that such coatings are much superior to normal coating in regard to freedom from defects, mechanical proporties, and protection against various aggressive liquids (mineral acids, solvents).
    Notes: Einleitenden Richtlinien für die Auswahl geeigneter natürlicher und synthetischer Textilien sowie Anstrichmittel zum Aufbau laminierter Anstrichsysteme (Anstriche mit Gewebeeinlage) folgt ein ausführlicher Abriß über die Technologie des Aufbringens laminierter Anstriche auf Metalloberflächen in Wort und Bild. Es wird in allen Einzelheiten gezeigt, daszlig; Fehlerfreiheit, mechanische Eigenschaften und der Schutzwert des Systems gegen verschiedene aggressive Flüssigkeiten (Mineralsäuren, Lösungsmittel) ungleich höher sind als bei einfachen Anstrichen.
    Additional Material: 8 Ill.
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