SYNTHESIS OF REDOX-ACTIVE POLYMER BASED VERDASIL BIRADICAL
DOI:
https://doi.org/10.17072/2223-1838-2019-3-266-278Keywords:
verdazyl, stable radical, toluene diisocyanate, formazan, polyurethane, EPR spectroscopy, cyclic voltametryAbstract
A redox-active polymer based on a verdazyl biradical - 4,4'-bis(3-(4’-hydroxyphenyl)-5-phenylverdazyl-1)-1,1'-biphenyl and 2,4-toluene diisocyanate was obtained. Verdazyl radical, being a diatomic phenol, easily reacts with toluene diisocyanate to form polyurethane. The presence of urethane bonds in the polymer molecule was confirmed by IR, and the presence of radical centers by EPR spectroscopy. The cyclic voltammetry method showed the ability of a polymer to undergo reversible redox transitions.References
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