Effects of transesterification and degradation on properties and structure of polycaprolactone–polylactide copolymers

• Published in: Polymer degradation and stability Vol. 95; no. 12; pp. 2596 - 2602
• Main Authors: Lipik, Vitali T., Widjaja, Leonardus K., Liow, Sing S., Abadie, Marc J.M., Venkatraman, Subramanian S.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2010; Elsevier
• Subjects: Applied sciences; Copolymers; Crosslinking; Decarboxylation; Degradation; Dehydration; Esters; Exact sciences and technology; Fragments; Macromolecules; Nuclear magnetic resonance; Organic polymers; Physicochemistry of polymers; Polycaprolactone; Polylactide; Polymerization; Preparation, kinetics, thermodynamics, mechanism and catalysts; Transesterification; Transesterification; Dehydration; Polylactide; Polycaprolactone; Decarboxylation; Ring opening polymerization; Lactone copolymer; Molecular structure; Lactic acid copolymer; Competitive reaction; Experimental study; Structure processing relationship; Random copolymer; Caprolactone copolymer; Preparation; Reaction mechanism; Anionic polymerization; Block copolymer

Ester bonds of biodegradable polymers, such as poly (α-hydroxy esters), synthesized by the coordinated anionic ring opening polymerization (CAROP), are subject to transesterification during synthesis. In this work, a series of poly(ɛ-caprolactone)-poly( l-lactide) (PCL-PLA) block and random copolyme...