Synthesis of Poly(butylene adipate-<i>co</i>-terephthalate) with Branched Monomer for Biodegradable Copolyesters with Enhanced Processability and Rheological Properties.

ABSTRACT: Poly(butylene adipate-co-terephthalate) (PBAT) is one of the most promising biodegradable copolyesters for addressing "white pollution" and has made significant progress in industrial production, particularly in packaging and mulching film applications. However, melt elasticity and the rapid biodegradation rate of linear PBAT limit the broader application. In this study, a series of novel PBAT copolyesters with a low content of branch units (1.3-1.6%) were synthesized from adipic acid (AA), terephthalic acid (PTA), 1,4-butanediol (1,4-BDO), and branching monomers with fixed side chain length through esterification and polycondensation. A comprehensive investigation into the macromolecular structure of branched PBAT was conducted. A "Memoryless Random Model" combined with ¹

SUBMITTER: Zhang X 

PROVIDER: S-EPMC12004134 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature