(1) Meng, X.-B.; Zhou, T.; Yang, C.; Cheng, X.-Y.; Wu, X.-T.; Shi, C.*; Du, F.-S.*; Li, Z.-C.* Thermally stable and chemically recyclable poly(ketal-ester)s regulated by floor temperature. J. Am. Chem. Soc.2024, 146, 15428–15437.(2) Wu, X.-T.; Yang, C.; Xi, J.-S.; Shi, C.*; Du, F.-S.*; Li, Z.-C.* Enabling closed-loop circularity of “non-polymerizable” α, β-conjugated lactone towards high-performance polyester with the assistance of cyclopentadiene. Angew. Chem., Int. Ed. 2024, 63, e202404179.(3) Shi, C.; Quinn, E. C.; Diment, W. T.; Chen, E. Y.-X.* Recyclable and (bio)degradable polyesters in a circular plastics economy. Chem. Rev.2024, 124, 4393–4478.(4) Shi, C.; Rorrer, N.A.; Shaw, A. L.; Clarke, R.W.; Buss, B. L.; Beckham, G. T.; Broadbelt, L.J.*; Chen, E. Y.-X.* Topology-accelerated and selective cascade depolymerization of architecturally complex polyesters. J. Am. Chem. Soc. 2024, 146, 9261-9271.(5) Shi, C.; Diment, W. T.; Chen, E. Y.-X.* Closed-loop recycling of mixed plastics of polyester and CO2-based polycarbonate to a single monomer. Angew. Chem. Int. Ed. 2024, 63, e202405083.(6) Shi, C.; Reilly, L. T.; Chen, E. Y.-X.* Hybrid monomer design synergizing property trade-offs in developing polymers for circularity and performance. Angew. Chem. In. Ed. 2023, 62, e202301850.(7)Shi, C.; Zhang, Z.; Scoti, M.; Yan, X.-Y.; Chen, E. Y.-X.* Endowing polythioester vitrimer with intrinsic crystallinity and chemical recyclability. ChemSusChem, 2023, 16, e202300008.(8) Shi, C.; Clarke, R. W.; McGraw, M. L.; Chen, E. Y.-X.* Closing the “one monomer–two polymers–one monomer” loop via orthogonal (de)polymerization of a lactone/olefin hybrid. J. Am. Chem. Soc. 2022, 144, 2264–2275. (9) Shi, C.; Reilly, L. T.; Phani Kumar, V. S.; Coile, M. W.; Nicholson, S. R.; Broadbelt, L. J. *; Beckham, G. T. *; Chen, E. Y.-X.* Design principles for intrinsically circular polymers with tunable properties. Chem 2021, 7, 2896–2912. (10) Shi, C.; Li, Z.-C.; Caporaso, L.; Cavallo, L.; Falivene, L.*; Chen, E. Y.-X.* Hybrid monomer design for unifying conflicting polymerizability, recyclability, and performance properties. Chem 2021, 7, 670–685.(11) Shi, C.; McGraw, M. L.; Li, Z.-C.; Cavallo, L.; Falivene, L.*; Chen, E. Y.-X.* High-performance pan-tactic polythioesters with intrinsic crystallinity and chemical recyclability. Sci. Adv. 2020, 6, eabc0495. (12) Shi, C.; Guo, Y.-T.; Wu, Y.-H.; Li, Z.-Y.; Wang, Y.-Z.; Du, F.-S.*; Li, Z.-C.* Synthesis and controlled organobase-catalyzed ring-opening polymerization of morpholine-2,5-dione derivatives and monomer recovery by acid-catalyzed degradation of the polymers. Macromolecules 2019, 52, 4260–4269.