A rigid, brittle polymer used in disposable food containers. The backbone of the polymer contains phenyl rings. Polyvinyl chloride A polymer produced through a condensation reaction, with applications ranging from clothing to packaging. Polyethylene terephthalate A rigid polymer used often in construction materials. The structure contains a halogen. Polyethylene terephthalate A flexible polymer used in the manufacturing of grocery bags. The molecular structure is ( C 2 H 4 ) n . Choose...