Document Type
Article
Publication Date
4-17-2024
Abstract
Long-chain aliphatic polyesters are potentially biodegradable polymers with PE-like structures and properties. To develop biodegradable long-chain polyesters for practical applications, a series of “short-long” type long-chain polyesters, PEsxy (x = 2−4, 6, y = 10−16), are designed and synthesized from C2−4,6 short-chain α,ω-diols, and C10−16 long-chain α,ω-diacids via melt polycondensation. They showed intrinsic viscosity as high as 0.93− 1.64 dL/g and PE-like crystal structure, rapid crystallization, and ductile tensile behavior. Their crystallization and melting temperature showed an increasing trend with diacid chain length and an apparent odd−even effect. The highest melting temperature reached 94 °C, and the highest tensile strength came at 53 MPa. Chain length-dependent biodegradability in soil and hydrolytic degradation under neutral conditions at 30−60 °C was also observed. In comparison with the widely used biodegradable poly(butylene adipate-co-terephthalate) (PBAT) copolyester, these polyesters show comparable tensile strength, flexibility, and oxygen barrier performance but superior and desirable crystallizable, tensile modulus, and water vapor barrier performance.
Recommended Citation
Patel, Jainishkumar, "Potentially Biodegradable “Short-Long” Type Diol-Diacid Polyesters with Superior Crystallizability, Tensile Modulus, and Water Vapor Barrier" (2024). Posters. 68.
https://digitalcommons.pittstate.edu/posters_2024/68
