Syntheses of poly[N‐(1‐pyrenyl)acetyl ethylenimine] [pyrene‐substituted linear poly(ethylenimine)] and poly[methyl 2‐(1‐pyrenyl)acetamidopropenoate] [pyrene‐substituted poly(dehydroalanine methyl ester)]

Abstract

SynopsisThe syntheses of two new pyrene-containing monomers-2-(l-pyrenyl)methyl-2-oxazoline (6) and methyl 241-pyreny1)acetamidopropenoate ( l a b a n d their polymerization are described. Cationic isomerization polymerization of 6 with ethylene glycol ditosylate initiator gave poly[N-(1-pyreny1)acetyl ethylenimine] 17) and free-radical polymerization of 12 with AIBN initiator gave poly[methyl 2-(l-pyrenyl)acetamidopropenoate] (15). The monomer model compounds of the two polymers, namely, N;Ndiethyl(l-pyreny1)acetamide (9) and methyl 2-methyl-24l-pyr-eny1)acetamidopropanoate (14), were also synthesized. The polymers were characterized by elemental analysis, IR spectroscopy, and a comparison of their 'H-NMR spectra with those of the respective monomer model compounds.