Description
General Description
D-Lactide is a high-purity cyclic diester (1,4-dioxane-2,5-dione derivative) produced from two molecules of D-lactic acid. It serves as a key monomer for the controlled ring-opening polymerization (ROP) to produce poly(D-lactic acid) (PDLA), a biodegradable and biocompatible polyester widely used in biomedical and pharmaceutical applications.
Polymerization of D-Lactide can be initiated using metal catalysts such as stannous octoate (Sn(Oct)â‚‚) or various organocatalysts to afford polymers with controlled molecular weights and narrow molecular weight distributions. PDLA can also be blended with poly(L-lactic acid) (PLLA) to form stereocomplex PLA, which exhibits significantly enhanced thermal stability, crystallinity, and mechanical strength compared with either homopolymer alone.
D-Lactide is extensively employed in the synthesis of biodegradable polymers for controlled drug delivery, absorbable sutures, orthopedic implants, tissue engineering scaffolds, 3D printing materials, and sustainable packaging.
Applications
- Ring-opening polymerization (ROP)
- Poly(D-lactic acid) (PDLA) synthesis
- Stereocomplex PLA preparation
- Drug delivery systems
- Tissue engineering
- Biodegradable medical devices
- Absorbable sutures
- 3D printing materials
- Biodegradable plastics
- Polymer research
Features and Benefits
- High optical purity
- High-purity cyclic ester monomer
- Efficient ring-opening polymerization
- Controlled polymer molecular weight
- Biodegradable and biocompatible
- Compatible with various ROP catalysts
- Forms high-performance stereocomplex PLA with PLLA
- Research and industrial grade available
