Synthesis and Characterization of Zinc β-Diketonate Complex Extended to the Macromolecular Polymers

Supercritical CO2 deposition and foaming process for fabrication of biopolyester–ZnO bone scaffolds

“…The complex formation of the precursor Zn(TTA) 2 was confirmed through the FTIR spectrum (Figure ) that shows peaks at 1601 cm −1 (vs), 1580 cm −1 (vs), 1540 cm −1 (vs) (CO) and 1508 (s) (CC) that are typical for the β‐diketonate ligand . In addition, peaks at 1458 cm −1 (s), 1410 cm −1 (vs), 1352 cm −1 (s), 1303 cm −1 (vs), 1255 cm −1 (s), 1233 cm −1 (s) (thienyl ring); 1190 cm −1 (vs) ( C ‐ F ); 846 cm −1 (s), 861 cm −1 (s), 933 cm −1 (s) (CH out‐plane thienyl); and 790 cm −1 (s), 723 cm −1 (s) ( C ‐ CF 3 ) testify presence of Zn(TTA) 2 . The broad band at spectral region of 3300–3500 cm −1 is attributed to water molecules that complete the coordination sphere of Zn 2+ .…”

“…51 In addition, peaks at 1458 cm 21 (s), 1410 cm 21 (vs), 1352 cm 21 (s), 1303 cm 21 (vs), 1255 cm 21 (s), 1233 cm 21 (s) (thienyl ring); 1190 cm 21 (vs) ( C-F ); 846 cm 21 (s), 861 cm 21 (s), 933 cm 21 (s) (CAH out-plane thienyl); and 790 cm 21 (s), 723 cm 21 (s) ( C-CF3 ) testify presence of Zn(TTA) 2 . 57 The broad band at spectral region of 3300-3500 cm 21 is attributed to water molecules that complete the coordination sphere of Zn 21 . Figure 4 where nontreated foam samples and pure precursor serve as reference.…”