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Description
SEM picture of a bend in a high-surface area polyester fiber with a seven-lobed cross section
Close-up of a polyester shirt
Supermacro closeup of a speaker cover fabric
Polyester is a category of polymers which contain the esterfunctional group in their main chain. Although there are many polyesters, the term "polyester" as a specific material most commonly refers to polyethylene terephthalate (PET). Polyesters include naturally-occurring chemicals, such as in the cutin of plant cuticles, as well as synthetics through step-growth polymerization such as polycarbonate and polybutyrate. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not.
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Polyester
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