polyestern
Polyestern is a synthetic polymer in the polyester family, defined by repeating ester linkages in its main chain. It is produced by condensation polymerization from diols and dicarboxylic acids or from diester precursors. Polyestern exists in aliphatic, aromatic, or mixed forms with a broad range of properties.
Structure and properties: The backbone consists of ester groups alternating with hydrocarbon segments. Aromatic units raise
Synthesis: Two main routes are used. Direct bulk polycondensation from diols and dicarboxylic acids yields high-molecular-weight
Applications: Polyestern is used in textiles and films, packaging materials, consumer goods, and engineering components that
Variants and recycling: Copolymerization with different diols or diacids allows tuning of Tg, toughness, and barrier
Environmental and safety: Routine handling requires standard polymer processing safety. Additives and fillers may introduce hazards,
History: Polyesterns arise from the broader development of polyesters in the 20th century and have since become