Abstract
Poly(amino acid)s with a central triphosphazene cycle and a peripheral pyrene moiety were synthesized from hexakis(4-aminophenoxy)cyclotriphosphazene and 1-pyrenebutanoic acid and have been characterized. The introduction of the luminophore resulted in the formation of highly ordered structures containing fragments with three α helices in the trans position to the phosphazene cycle. The character of luminescence spectra suggests the presence of pyrene dimers; their appearance may be associated with the intermolecular aggregation of peptide chains with chromophore end groups. The DSC data revealed the glass transition due to the freezing out of the mobility of side chains, as well as an alteration in the helix type of the poly(amino acid) fragments.
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