Peculiar Spherulitic Morphologies and Melting Behavior of Block Copolymer Containing Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and Poly(ε-caprolactone) Units

摘要

Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a thermoplastic biodegradable polyester with good biocom-patibility. However, PHBV has some disadvantages including brittleness, high melting temperature, bad thermal stability, high crystallinity, and so on. Poly(ε-caprolactone) (PCL) is a biodegradable, biocompatible, and nontoxic polyester with excellent mechanical strength. However, the applications of PCL are limited by its low melting point and high crystallinity.