Design of Hydrolysis, Enzymatic and Soil‐Degradation Diglycolate‐Based Copolyesters With Good Mechanical and Thermal Properties

In this paper, a series of poly(butylene diglycolate‐co‐succinate‐co‐furandicarboxylate) (PBSFD) and poly(butylene diglycolate‐co‐adipate‐furandicarboxylate) (PBAFD) copolymers were synthesized to enhance the degradation rate of PBAF and PBSF. The structure and properties were tested. PBAFD and PBSFD copolymers display impressive biodegradability when catalyzed by candida antarctica lipase B. The weight loss of copolymers was more than 75% after 14 days degradation. Compared to PBSFD copolymers, the PBAFDs owned better soil degradability, resulting in weight loss was 89.1% when the molar ratio of diglycolic acid was 30% after 70 days degradation. Also, the stress of PBAFD30 was 17.1 Mpa, and the elongation at break was more than 900%. The temperature of 5% mass loss of PBAFD30 was as high as 371.3°C. Thus, PBAFD and PBSFD copolymers have good application prospects in single‐use packaging materials.