A catalyst series of zeolitic imidazole frameworks (ZIFs) with a sodalite (SOD) structure was explored as an effective heterogeneous catalyst for l-lactide polymerization into biodegradable polylactides (PLAs). The catalyst series of ZIF-8, ZIF-67, and bimetallic ZnCo-ZIF was synthesized under the green method (room temperature synthesis), which contained a variance in the metal species/contents. The chemical and physical properties of catalysts were characterized by several techniques to illustrate the relation between catalyst properties and catalytic performance. The results indicated that the metals in the ZIF structure revealed an influencing role in catalytic activities, kinetic rates, and properties of polymer products under bulk ring-opening polymerization of l-lactide. Moreover, the best performing ZIF showed potential as a heterogeneous catalyst since it could be reused at least four times without significant loss of catalytic activity.

探索了一系列具有方钠石 (SOD) 结构的沸石咪唑骨架 (ZIF) 催化剂作为l-丙交酯聚合成可生物降解聚乳酸 (PLA)的有效多相催化剂。ZIF-8、ZIF-67 和双金属 ZnCo-ZIF 催化剂系列是在绿色方法（室温合成）下合成的，其中金属种类/含量存在差异。通过多种技术表征催化剂的化学和物理性质，以说明催化剂性质与催化性能之间的关系。结果表明，ZIF结构中的金属对l的本体开环聚合反应的催化活性、动力学速率和聚合物产物的性质有影响。-丙交酯。此外，性能最好的 ZIF 显示出作为非均相催化剂的潜力，因为它可以重复使用至少四次而不会显着降低催化活性。