The principle of Raman identification of polymers is a non-destructive analysis method. Its basic principle is to excite the sample with laser, so that the vibration of its molecules generates inherent spectral signals, thereby inferring the chemical composition and structure of the sample. Raman spectroscopy can provide many important information on the structure of polymer materials, such as molecular structure and composition, stereoregularity, crystallization and orientation, molecular interactions, and surface and interface structures.
