Controlled ring-opening polymerization of lactide and glycolide.

2.3. Stereocontrol of Lactide ROP 6164 2.3.1. Isotactic Polylactides 6164 2.3.2. Syndiotactic Polylactides 6166 2.3.3. Heterotactic Polylactides 6166 3. Anionic Polymerization 6166 4. Nucleophilic Polymerization 6168 4.1. Mechanistic Considerations 6168 4.2. Catalysts 6169 4.2.1. Enzymes 6169 4.2.2. Organocatalysts 6169 4.3. Stereocontrol of Lactide ROP 6170 4.4. Depolymerization 6170 5. Cationic Polymerization 6170 6. Conclusion and Perspectives 6171 7. Acknowledgments 6173 8. References and Notes 6173