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Chemistry LibreTexts


Polymers are long chain, giant organic molecules are assembled from many smaller molecules called monomers. Polymers consist of many repeating monomer units in long chains, sometimes with branching or cross-linking between the chains.

Thumbnail: Space-filling model of a section of the polyethylene terephthalate polymer, also known as PET and PETE, a polyester used in most plastic bottles. Color code:   Carbon, C (black), Hydrogen, H (white), and Oxygen, O (red). Image used with permission (Public Domain; Jynto).