Polymer Chemistry

Polymers in and Around You

What is PET (polyethylene terephthalate)?

Polyethylene terephthalate is a thermoplastic that is used in both textiles, where it’s called polyester, and in bottling, where the same polymer is called PET. PET is an alternating polymer of ethylene and terephthalate monomers. This material is really good at preventing gases from diffusing through it, so it’s great for keeping carbonated drinks fizzy.



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