copolyesters
Copolyesters are a class of polymers produced by condensation polymerization that combines two or more different ester-forming monomers into the main chain. These copolymers extend the conventional polyester family by incorporating distinct diol and/or diacid units, which can be arranged randomly, alternately, or in blocks.
Such structural variety allows tailoring of properties like crystallinity, glass transition temperature, toughness, clarity, and barrier
Poly(butylene adipate-co-terephthalate) (PBAT) is a widely used biodegradable copolyester in compostable packaging. Copolyesters are melt-processable and
Biodegradable or bio-based copolyesters are available, but many common copolymers remain non-biodegradable and rely on recycling