FIGURE 7. FTIR spectra of 16%wt. Chitosan in PVC, Chitosan in PAN, PVC in PVP.

Figure 7<b> </b>shows the FTIR absorption spectra of PAN powder incorporated with 16wt% chitosan powder. The FTIR spectra of this combination provide some nitrile groups, equivalent to 669 cm-1.

图7展示了掺入16wt%壳聚糖粉末的聚丙烯腈（PAN）粉末的傅里叶变换红外光谱（Fourier Transform Infrared Spectroscopy，FTIR）。该共混体系的傅里叶变换红外光谱在669 cm⁻¹波数处呈现出对应腈基的特征吸收峰。