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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 95 (1981), S. 83-108 
    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: Synthetic polyamides such as polycaprolactam and poly(hexamethylene-adipamide) are hard, brittle moulding masses in the solid state. The impact and shock resistance in the solid state can be improved considerably by alloying of polyolefins. The work done on the determination of the structure of such macromolecular composite systems is described. The studies show that best results are obtained when polyolefin particles ranging from 0.5 to 5 μm are embedded in the continuous polyamide matrix and if an adhesion and thus also a compatibility of the non-miscible components is present at the phase interface due to block-graft polymers.
    Notes: Synthetische Polyamide wie Polycaprolactam und Poly(hexamethylenadipamid) sind im trockenen Zustand hartspröde Formmassen. Durch ein Zulegieren von Polyolefinen kann die Schlag- und Schockfestigkeit im trockenen Zustand wesentlich verbessert werden. Beschrieben werden die Arbeiten zur Strukturaufklärung dieser makromolekularen Mehrstoffsysteme, die zeigen, daß man optimale Ergebnisse erzielt, wenn in der kontinuierlichen Polyamidmatrix Polyolefinpartikelchen mit einer Größe von etwa 0,5 bis 5 μm eingebettet sind und an der Phasengrenzfläche durch Blockpfropfcopolymerisate eine Haftung und damit eine Verträglichkeit der nicht mischbaren Komponenten erreicht wird.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of economics 52 (1990), S. 55-70 
    ISSN: 1617-7134
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract The paper analyses the impact of pecuniary externalities in a two-sector economy with an incomplete market structure. Agents in each sector choose their proportion of risky investment. Sector specific risks are assumed to be perfectly negatively correlated. It is shown that the economy is more volatile if risk markets do not exist. With a complete set of risk markets, shocks in one sector will be dampened on the aggregate level. In contrast, when risk markets are absent, pecuniary externalities arising from higher risky investment in one sector can create feedback effects in the other sector. When agents are sufficiently risk averse (their coefficient of relative risk aversion being greater than one), an individually optimal response to the increased riskiness of the price distribution will result in an even riskier price distribution: an increase in risky activity in one sector will lead to an increase in risky activity in the other sector, and this gives multiplier effects.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: β-Aryloxy-crotonsäuren und deren Methylester geben unter den Bedingungen der PECHMANN-Reaktion Cumarine und nicht Chromone, wie bisher angenommen. Mit dieser Erkenntnis wird auf die Vorstellungen über den Verlauf der Chromonsynthese aus β-Aryloxy-crotonsäuren nach GOTTESMANN eingegangen sowie auf den Verlauf der Umsetzung von β-Ketocarbonsäureestern mit Phenolen zu Cumarinen nach PECHMANN und zu Chromonen nach SIMONIS.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 605 (1957), S. 146-157 
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Der Weg einer Khellin-Synthese wird mitgeteilt, bei welcher das bisher unbekannte 4.7-Dimethoxy-6-hydroxy-cumaron mit β-Chlor-crotonsäure-methylester veräthert und die Säure des erhaltenen Äthers zum Khellin ringgeschlossen wird.
    Type of Medium: Electronic Resource
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  • 5
    Book
    Book
    Berlin u.a. :Springer,
    Title: Einführung in die Spieltheorie
    Author: Holler, Manfred J.
    Contributer: Illing, Gerhard
    Publisher: Berlin u.a. :Springer,
    Year of publication: 1996
    Pages: 389 S.
    Series Statement: Springer-Lehrbuch
    Type of Medium: Book
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