2.3.3. Thermal Behavior

The crystallization kinetics were investigated using a Perkin-Elmer DSC 7 system. Samples were heated from 30 to 200 ◦C at 10 ◦C/min. The samples were kept in the molten state for 5 min to remove thermal history and then cooled down to 30 ◦C at the rate of 10 ◦C/min. Then, the samples were heated back again to 200 ◦C at a rate of 10 ◦C/min to analyze the crystallization characteristic after heating. The percent crystallinity of the PBS and PBAT was calculated using Equation (1).

$$\mathbf{Xc} = \left(\frac{\Delta H\_m}{\Delta H\_{m100}(1 - w\_P)}\right) \times 100\,\%\tag{1}$$

where ∆*Hm*<sup>100</sup> is the theoretical enthalpy of melting for 100% crystalline PBS (110.3 J/g) and PBAT (114 J/g), *w<sup>p</sup>* is the weight fraction of the PBS, TPS, and TPRH in the PBS/PBAT blend.
