Polymers, Volume 12, Issue 1 (January 2020) – 250 articles
Cover Story (view full-size image): The isothermal nucleation, growth, and overall crystallization kinetics of biobased and biodegradable isodimorphic poly(butylene succinate)-ran-poly(ε-caprolactone) copolyesters (PBS-ran-PCL) were studied. Under isothermal conditions, only the PBS-rich phase or the PCL-rich phase crystallize, as long as the composition is away from the pseudo-eutectic point. The crystallization kinetics were a strong function of composition and supercooling. The only copolymer with a eutectic composition exhibited remarkable behavior. By tuning the crystallization temperature, this copolyester can form either one or two crystalline phases, each with remarkably different thermal properties. The properties of these versatile copolymers can be tailored by varying the composition and crystallization conditions. View this paper.
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