If you have not already done so, download Avogadro for free and watch the tutorials if necessary.
PET is a polymer of which various packaging is composed, in particular bottles used for mineral water and for other beverages. Recycled, it is used in various industrial fields, including textiles (go to the sheet)The starting monomer is the following molecule:
Build the molecule with Avogadro, remembering you will find benzene ring with the sequence build → Insert → Fragment.
What is the name of this monomer? Which are the binding sites for polymerization?