SYNTHESIS AND SPECTROSCOPIC PROPERTIES OF POLY(L-1-PYRENYLALANINE)

Article abstract of DOI:10.1246/cl.1983.1307

A novel aromatic poly(amino acid), poly(L-1-pyrenylalanine), was synthesized as a block copolymer with poly(γ-benzyl DL-glutamate).The circular dichroism of the block copolymer in trimethyl phosphate indicated a helical arrangement of the pyrenyl groups along the polypeptide chain.The excimer emission was weaker than that from the corresponding racemic copolymer.Two different species of excimers were found by the circularly polarized fluorescence spectrum.