Figure 2: ATR-FTIR spectra of prepared hybrid fibre mats and raw chemicals. (a) GPTMS, (b) GOTMS, (c) Ca-γPGA, (d) O-4G, (e) P-2G and (f) O-2G. Peaks corresponding to the crosslinking between carboxyl groups of γPGA and epoxy groups of GOTMS or GPTMS and siloxane phases were observed at about 1740 cm−1 and 1100/1030 cm−1, respectively.
