Coordinative Ring-Opening Copolymerization of Limonene Carbamate and ε-Caprolactone Toward Phosgene- and Isocyanate-Free Polyesterurethane Block-Copolymers with Tunable Properties.

ABSTRACT: Polyesterurethanes are versatile polymers widely utilized in applications such as foams and adhesives, yet their industrial production relies on toxic and carcinogenic diisocyanates. To address this, isocyanate- and phosgene-free synthetic methods have been explored, with ring-opening polymerization of cyclic carbamates emerging as a promising alternative. This study presents the coordinative ring-opening copolymerization of limonene-based cyclic carbamates with ε-caprolactone to synthesize AB-block polyesterurethanes. Using the presented method, tunable block copolymer compositions were achieved, verified by NMR, GPC, and FT-IR analyses. Thermal and optical characterizations by DSC and UV-vis revealed an adjustable glass transition temperature between -9°C and -59°C and transmittance up t

SUBMITTER: Futter J 

PROVIDER: S-EPMC12784182 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature