The FTIR spectrum contains bands typical of an aromatic/methacrylate polymer backbone, alongside absorptions assigned to amide and nitrile groups. A dense, multi-component cluster in the 2020–2222 cm⁻¹ region is observed; the literature suggests Si–H stretching modes from hydrogenated silicon species as a plausible explanation, though an organic origin (multiple nitrile stretches or combination bands) cannot be ruled out. The material is thus characterized as an organic polymer with aromatic/methacrylate character and nitrogen functionality, with an additional spectral feature whose structural basis remains to be confirmed FTIR In-Depth Interpretation was not selected for this task, so this section shows the library-search result only and no deep AI interpretation was run.