Ring opening polymerization of macrolactones using amines as initiators

The ring opening polymerization (ROP) of these macrolactones mediated by alcohols as initiators and organic and metal-based catalysts has been reported before with satisfactory results [4,5]. In the present work, the polymerization of these macrolactones has been studied using amines as initiators. The ROP of both PDL and 6HDL was carried out in bulk at 100 oC using 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as organocatalyst. Distinct types of amines were tested as initiators for the ROP of these macrolactones. The copolymerization reaction was also studied by ROP of PDL and 6HDL with an oligo-polyethylene glycol bis(3-aminopropyl) terminated and an amino-ended homopolypeptide (poly(¿-benzyl a,Lglutamate) as initiator