This dataset gathers the data published as figures in the scientific article "Designing Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate) P(3HB-co-3HV) films with tailored mechanical properties". 1. WAXS analysis of polymers (Figure 1, Table 2) - 2. SAXS analysis of polymers and films (Figure 1, Table 2, Figure 7, Table 5) - 3. DSC analysis of polymers (Figure 2, Table 3) - 4. Summary of tensile tests (Figure 5, Figure 6, Table 4) - 5. WAXS analysis of films (Figure 7, Table 5).