Illustrated Glossary of Organic Chemistry

Polyethylene terephthalate (PET, PETE): A copolymer formed by copolymerization of terephthalic acid (or a terephthalic acid derivative such as dimethyl terephthalate) and ethylene glycol. A commonly used, readily recyclable plastic.


Terephthalic acid

Ethylene glycol

Polyethylene terephthalate
Polyethylene terephthalate can be formed by copolymerization of two different monomers: terephthalic acid and ethylene glycol.

A water bottle molded from PET.
The universal recycling symbol for PET.