Under the guidance of Professor Zhang Yaoyao, Xie Di, a second-year graduate student in the research group, published a paper as the first author in a Top Journal of the Chinese Academy of Sciences (CAS) Zone 1. This paper successfully achieved switchable polymerization of various epoxides and comonomers (terminal epoxides, internal epoxides, phthalaldehyde, CO2) through rational selection of catalysts and monomers. The resulting oxygen-rich block copolymers of polyacetals/polycarbonates exhibit both dual recyclability and biodegradability, providing a new technical pathway for the switchable synthesis of oxygen-rich block copolymers.Di Xie, Zhi-Hua Jia, Yan-Li Zhang, Xin-Lei Cai, Long-Nv Liu, Guan-Wen Yang*, Xiaohui Kang*, Xianming Zhang, Yao-Yao Zhang*. Switchable Polymerization from Monomer Mixtures to Synthesize Oxygen-Rich Block Copolymers with Dual Recyclability and Degradability, Angew. Chem. Int. Ed. 2025, e202424856.（IF=16.2，Hot paper)