Organoiron polymers containing azo dyes.

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Title Organoiron polymers containing azo dyes.
Author(s) Alaa S. Abd-El-Aziz, Erin K. Todd, Rawda M. Okasha, Tarek H. Afifi
Journal Macromolecular Symposia,
Date 2003
Volume 196
Issue 1
Start page 89
End page 99
Abstract The synthesis of cationic organoiron polymers with azobenzene moieties in their side chains has been accomplished via nucleophilic aromatic substitution and ring-opening metathesis polymerization (ROMP) reactions. Polyaromatic ethers and thioethers with azobenzene moieties in their side chains were functionalized with different chromophores to yield yellow-, orange- and red-colored polymers. Polynorbornenes with azobenzene-containing side chains were isolated following ROMP of their monomeric analogs. All of the organoiron polymers were soluble in polar organic solvents and underwent reversible electrochemical reduction processes. Photobleaching of the azobenzene-containing polymers was achieved in the presence of hydrogen peroxide. The metallated polymers had glass transition temperatures approximately 50 to 80°C higher than their organic analogs.
DOI 10.1002/masy.200390180

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