Abstract
AbstractTwo grades of a novel biodegradable copolymer of ω‐pentadecalactone (PDL) and 2‐oxo‐12‐crown‐4 (OC), with respective molar compositions of 77/23 and 52/48, were characterized with 1D and 2D MAS 1H and 13C NMR spectroscopy. The results indicate that both copolymers are semi‐crystalline with PDL divided over the crystalline and amorphous phase, and OC exclusively located in the amorphous phase. Proton T2 and T1ρ relaxation confirm the existence of small crystalline domains.
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