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  • 1
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Based on solvatochromic effects empirical polarity scales for solvents can be derived. Correspondingly, five organic test substances of the donor-acceptor type were added to 21 different film-forming organic polymers and the UV-VIS spectra were evaluated. The absorption maxima of these substances were found to shift bathochrom with increasing polarity of the binding agent. The solvatation in solvents and solid matrices were compared in order to establish relative polarity values of the polymers.
    Notes: Auf der Basis von Solvatochromie-Effekten lassen sich empirische Polaritätsskalen für Lösungsmittel ableiten. In Analogie dazu wurden fünf organische Testsubstanzen vom Donator-Acceptor-Typ in 21 verschiedene filmbildende organische Polymere eingebracht und UV-VIS-spektroskopisch vermessen. Die Absorptionsmaxima dieser Substanzen verschieben sich mit zunehmender Polarität des Bindemittels bathochrom. Die Solvent-Effekte in Lösungsmitteln und in festen Matrizen werden verglichen, um so relative Polymer-Polaritätswerte zu gewinnen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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