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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 79 (1979), S. 207-221 
    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: Polymers and oligomers of diethanolaniline were reacted with 2-dicyanomethylen-1,3-indandione to yield colourless adducts, which can be converted to deep blue merocyanine dyes by heating to 80-120°C.
    Notes: Durch Umsetzung von Polymeren und Oligomeren des Diäthanolanilins mit 2-Dicyan-methylen-1,3-indandion werden farblose Addukte erhalten, die beim Erwärmen auf 80-120°C in tiefblaue Merocyaninfarbstoffe übergehen.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 79 (1979), S. 223-236 
    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: 2-Dicyanomethylene-1,3-indandione forms colourless adducts with higher molecular derivatives of N,N-Diethanolaniline which thermally decompose to dark blue dyes. The rate of the dye formation is determined UV-photometrically and is compared with rates for monomeric model compounds. It is shown that reaction rates can be correlated with the solvent polarity parameter ET′ (r = 0,928). Due to kinetic data a carbanionic mechanism is suggested.
    Notes: Die Geschwindigkeit der Bildung eines tiefblauen Farbstoffs aus ungefärbten Addukten des 2-Dicyanmethylen-1,3-indandions mit hohermolekularen Derivaten des Diäthanolanilins wurde photometrisch gemessen und mit den Werten monomerer Modellsubstanzen verglichen. Die Geschwindigkeitskonstanten sind mit dem Parameter ET der Lösungsmittelpoläritat korrelierbar (r = 0,928). Auf Grund der kinetischen Daten wird auf einen Carbanion-Mechanismus geschlossen.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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