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A PLA–PCL–PLA triblock copolymer was synthesized by ring-opening polymerization of successively added ε-caprolactone and dl-lactide in the presence of ethylene glycol, using zinc powder as catalyst. The resulting copolymer was compression molded to yield circular films from which 10×10×0.4mm 3 square samples were cut. These samples were allowed to degrade in isoosmolar 0.13M, pH 7.4 phosphate...
Novel (ε-caprolactone)-based copolymers of different compositions were synthesized by allowing methyl iodide to react with the polycarbanion that resulted from the action of lithium diisopropylamide on poly(ε-caprolactone) in THF at −70°C under argon atmosphere. The copolymers were characterized by various techniques, namely 1H nuclear magnetic resonance, size exclusion chromatography, differential...
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