Abstract
Poly(3-hydroxybutyrate) (P3HB) is a thermoplastic, biocompatible, and truly biodegradable polyester produced by bacteria and characterized by a high degree of crystallinity due to its isotactic nature. In order to tackle the challenges of its processability at the time of developing new green materials, the use of biodegradable additives is highly recommended. In this work, the biodegradable and biocompatible semicrystalline multiblock copolyester poly(butylene succinate-butylene dilinoleate) (PBS:DLA), shortly abbreviated as CoPo, is used to produce new P3HB blends. The hard:soft segment ratio of the copolymer can be selected as desired during its synthesis. Two different copolymers, namely, CoPo70 (70:30) and CoPo50 (50:50), were blended with P3HB at different concentrations, i.e., 5, 10, and 20 wt %, to investigate the phase behavior of blends. Furthermore, the effect of CoPo segmental composition and its content was evaluated experimentally as well as by dissipative particle dynamics (DPD) simulations...
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