Infrared Spectroscopy of Cellulose Acetate
Cellulose Acetate is of great value in the field of materials research. Its infrared spectrum is a key way to gain insight into the structure and properties of the material.

Infrared spectroscopy analysis, a specific wavenumber interval corresponds to the vibration of the unique functional group of cellulose acetate. In a certain wavenumber range, the stretching vibration peak of the carbonyl group (C = O) in the acetyl group can be detected. This peak is sharp and high intensity, just like a clear sign in the material structure, clearly revealing the existence of acetyl groups. The position and intensity of this characteristic peak can provide a strong basis for the determination of the degree of acetylation of cellulose acetate.

Furthermore, the vibration peak of the hydroxyl group (-OH) on the main chain of cellu Although some hydroxyl groups are acetylated in cellulose acetate, a small amount of hydroxyl groups remain. Its vibration peak appears at the corresponding wavenumber, or is displaced due to hydrogen bonding. This phenomenon reflects the interaction between molecules within the material, which is of great significance for understanding the physical and chemical properties of materials.

By accurately analyzing the infrared spectrum of cellulose acetate, researchers can deeply grasp its chemical structure, molecular arrangement and functional group relationships, laying a solid foundation for material performance optimization, synthesis process improvement and application expansion. It has important guiding value in many fields such as textiles, plastics, and membrane materials.