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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 144 (1986), S. 51-72 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wurde die Dispersion von Solen einiger übergangsmetalle (Gold, Eisen(III)-oxid · H2O, Chromhydroxid) in einem wasserlöslichen Polymeren (PVA 4-88) untersucht und von den daraus hergestellten Filmen ein Vergleich ihrer mechanischen und elektrischen Eigenschaften gemacht. In Erweiterung auf nichtwäßrige Lösungsmittel (Dimethylformamid, Tetrahydrofuran) wurden die Wechselwirkungen von mehrwertigen Metallionen (Fe(III), Al(III), Ti(IV), Zr(IV), Pd(O), Ag(O), Au-Sole) mit einem spezifischen metallkomplexierenden Polymeren (Polyacrylamidoxim) und einem Blockcopolymeren, das Styrol und Butadien (Buna BL 6533) enthält, untersucht.
    Notes: The dispersion of transition metal sols (gold, ferric hydrous oxide, chromium hydroxide) in a water soluble polymer (PVA 4-88) was investigated and from the films produced, a comparison made of their mechanical and electrical properties. Extending to non aqueous solvents (dimethylformamide, tetrahydrofuran) interactions of polyvalent metal ions (Fe(III), Al(III), Ti(IV), Zr(IV), Pd(0), Ag(0), Au sols) with a specific metal complexing polymer (poly(acrylamideoxime)) and a block copolymer containing styrene and butadiene (Buna BL 6533) were investigated.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 21 (1983), S. 3479-3492 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The thermal oxidation of undoped trans-polyacetylene powder in dry air has been studied and the principal features of the mechanism have been developed. Thermogravimetric and differential thermal analysis reveal an exothermic process that first leads to a weight increase, followed by precipitous weight loss above 240°C due to formation of volatile oxidation products. Isothermal weight gain studies between 25 and 142°C show first-order kinetics below 90°C with a rate constant of 3.10-7 s-1 at 25°C and an apparent activation energy of 16 kcal/mol. A weight gain of more than 40% has been observed at 25°C after 2000 h of exposure to air. A change in first-order kinetics occurs at temperatures above 90°C. Identification of solid oxidation products with photoacoustic infrared spectroscopy reveals that oxygen intercalates into the polymer structure in large concentrations, similar to other electron acceptors. However, oxidative attack on the polymer backbone occurs simultaneously. At elevated temperatures or for long-term oxygen exposure, the concentration of dopant oxygen decreases, probably by intramolecular regrouping of hydrogen atoms, resulting in the formation of hydroxyl groups and enhanced polymer degradation. This mechanism is consistent with the finding of others that the conductivity of polyacetylene upon oxygen exposure increases initially before decreasing significantly with continued exposure, especially at elevated temperatures.
    Additional Material: 7 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 79 (1967), S. 657-663 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird über die Bildung von Silicium-Kohlenstoff-Verbindungen (Carbosilane) mit Molekülgerüsten aus alternierend angeordneten Si- und C-Atomen berichtet, die durch thermische Zersetzung von Si(CH3)4), CH3SiCl3, (CH3)2SiCl2 und (CH3)3SiCl zugänglich werden. Nach Diskussion der Bildung der Carbosilane werden Reaktionen polychlorierter Carbosilane mit metallorganischen Verbindungen besprochen.
    Additional Material: 3 Tab.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 79 (1967), S. 1068-1069 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 79 (1967), S. 1067-1068 
    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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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 36 (1923), S. 30-32 
    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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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 39 (1926), S. 23-24 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 75 (1963), S. 723-723 
    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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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 76 (1964), S. 994-995 
    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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  • 10
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es werden Bildung und Eigenschaften der Silicium-Phosphor- und Aluminium-Phosphor-Verbindungen beschrieben. Silylphosphine werden solvolytisch von H2O, C2H5OH, NH3, Halogenwasserstoffen, C2H5J und Borhalogeniden an der Si-P-Bindung gespalten, wobei der Spaltung die Bildung einer Additionsverbindung vorgelagert sein kann. Die bei der Umsetzung von Halogensilanen mit LiPEt2[1] stark hervortretenden Nebenreaktionen (Bildung von Et2P-PEt2, HPEt2, Si-reichen Rückständen) sind auf überschüssiges LiPEt2 im Reaktionsgemisch zurückzuführen. - Die Umsetzung von LiPEt2 mit AlCl3, AlHCl2 und AlH2Cl führt zu definierten Aluminium-Phosphor-Verbindungen, wenn auf ein Al-Atom nur eine PEt2-Gruppe kommt, z. B. in (Cl2Al-PEt2)3 und (H2Al-PEt2)3, oder wenn sich mit überschüssigem LiPEt2 Salze wie Li [Al(PEt2)4] und Li[AlH2(PEt2)2] bilden können.
    Additional Material: 1 Tab.
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