Аннотация:We present Raman study of a number of polylactide- based materials: polylactide stereoisomers, L-lactide oligomers, L-lactide/ε-caprolactone copolymers, and poly(L-lactide)/hydroxyapatite composites. It is established that the composition and crystallinity degree of a wide range of polylactide- based materials can be determined by Raman spectra. The advancement of this technique is crucial for the development of innovative polylactide- based materials used both for diverse medical applications and, for example, in the creation of biodegradable disposable packaging to address environmental pollution problems.