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Acid/Base‐Sensitive Ring‐Opening Metathesis Polymers Based on Phenanthroimidazole Dyes
Author(s) -
Noormofidi Nadja,
Slugovc Christian
Publication year - 2007
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200700038
Subject(s) - polymer , fluorophore , imidazole , protonation , fluorescence , chemistry , polymer chemistry , benzophenone , absorption (acoustics) , photochemistry , base (topology) , metathesis , materials science , organic chemistry , polymerization , ion , mathematical analysis , physics , mathematics , quantum mechanics , composite material
Poly(norbornenes) with pendant 2‐phenyl‐1 H ‐phenanthro[9,10‐ d ]imidazole in different ratios were prepared and their photophysical properties were studied in the presence and absence of acids. The polymers exhibited good film‐forming properties, which paved the way to study their acid/base‐sensitivity in the solid state. Polymer films with a high fluorophore content exhibited self‐absorption in their non‐protonated form and a pronounced fluorescence response in the presence of gaseous HCl. In contrast, thin films of the polymer with a low dye content showed almost no self‐absorption and only a poor response to the acidic analyte.