Abstract
Poly (ε-caprolactone) (PCL), poly (δ-valerolactone) (PVL), poly (ε-caprolactone-co-δ-valerolactone) [P(CL-co-VL)], and poly (ε-caprolactone-co-ethylene oxide-co-ε-caprolactone) (PCL-PEO-PCL) were synthesized by ring-opening and diol-initiated polymerization of ε-caprolactone and δ-valerolactone. The degradation of the samples by chemical hydrolysis and in a soil burial test was evaluated. It was found that PCL, PVL, and P(CL-co-VL) degrade mainly enzymatically. The rate of degradation depends on their molecular weight, chemical structure, composition, and morphology. PCL-PEO-PCL block copolymers exhibit a repelling effect to the microorganisms in the soil, which depends on the molecular weight and relative amount of PEO block in the copolymer.
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Toncheva, V., Van Den Bulcke, A., Schacht, E. et al. Synthesis and environmental degradation of polyesters based on poly (ε-caprolactone). J Environ Polym Degr 4, 71–83 (1996). https://doi.org/10.1007/BF02074868
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DOI: https://doi.org/10.1007/BF02074868