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  • Polymer and Materials Science  (2)
  • E-beam testing  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Signal analysis of a GaAs 1K-SRAM by high-speed e-beam testing
    Amsterdam : Elsevier
    Microelectronic Engineering 14 (1991), S. 133-148 
    Details
    ISSN: 0167-9317
    Keywords: 1 K-SRAM ; E-beam testing ; GaAs-MESFET technology ; digital circuit testing
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-9317(91)90160-F
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mechanism of polyvinyl chloride degradation and stabilization (1959)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 35 (1959), S. 3-16 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Many articles have been written attempting to explain the degradation processes which take place when polyvinyl chloride is aged. Everyone agrees that hydrogen chloride is evolved, color develops, and the polymer eventually becomes stiff and insoluble as a result of crosslinking. Early workers believed that hydrogen chloride catalyzed the decomposition and that the role of stabilizers was to react with it to render it ineffective. More recent work has shown that hydrogen chloride is not a catalyst for the decomposition in the absence of oxygen and that the function of stabilizers may be quite different from that earlier assumed. In this paper an attempt is made to weigh the results of many workers and to explain the observable changes brought about during degradation by a consistent free radical mechanism. Under milling conditions, temperatures are attained at which even saturated hydrocarbons will oxidize; hence it is not unreasonable to assume the presence of free radicals in polyvinyl chloride. Free radicals may also result from the ejection of a chlorine atom from a polymer chain. At room temperatures chlorine atoms may be formed as the result of the absorption of light energy. Once radicals are produced, degradation in the presence of oxygen may take many routes. A few of these are discussed. Many stabilizers are believed to act by disrupting radical chain processes.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1959.1203512802
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Conformational Analysis of Nitroglycerin (1985)
    Weinheim : Wiley-Blackwell
    Propellants, Explosives, Pyrotechnics 10 (1985), S. 43-46 
    Details
    ISSN: 0721-3115
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The conformation of the energetic plasticizer, nitroglycerin, has been studied by classical potential energy calculations. The calculations reveal three low energy conformations, each of which has a different dipole moment. The three conformations found are consistent with the published NMR data if an equilibrium between the three conformers is assumed. The results have implications for the interaction of nitroglycerin with solvents and propellant bases.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prep.19850100204
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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