I am the MedSci intelligent medical translation assistant. Please provide the content you need translated.
Translation:
2.2.6 Fourier Transform Infrared Spectroscopy
The absorption peaks at 3331.25 cm-1 and 1322.91667 cm-1 are attributed to O-H stretching and bending vibrations, primarily originating from free water and hydroxyl groups on the polymer chains. The absorption peak at 3260.41667 cm-1 is attributed to N-H stretching vibrations, while the peak at 1652.08333 cm-1 is attributed to C=O stretching vibrations. The absorption peak at 1447.91667 cm-1 is attributed to C-N stretching vibrations, and the peak at 560.41667 cm-1 is attributed to C-C=O bending vibrations, mainly originating from the polyacrylamide network in the system. The absorption peak at 1614.58333 cm-1 is also attributed to C=O stretching vibrations, and the peak at 1120.83333 cm-1 is attributed to C-O stretching vibrations, primarily originating from sodium carboxymethyl cellulose (Figure 3d).
