which plastic type (via resin ID code) has the repeating unit of highest mass? how massive is it (in amu)?
Extracted text: Table 1. Common Plastics and Their Uses. Resin ID Chemical Structure Code Polymer Name Description/ Common Products (monomer) (RIC) Clear, tough plastic. Fizzy drink bottles, oven-ready meal trays PET or PETE (Polyethylene terephthalate) PET and water bottles HDPE (High- density polyethylene) Stiff plastic. Milk and detergent bottles, yogurt and margarine tubs, cereal box liners and grocery, trash and retail bags HDPE (linear) PVC (Polyvinyl chloride) Rigid or flexible. Plastic food wrap, vegetable oil bottles, loose-leaf binders and plastic PVC pipes Ductile plastic. Dry cleaning bags, produce bags, trash can liners, bread bags, frozen food bags and squeezable bottles, such as mustard and honey LDPE (Low-density polyethylene) LDPE (highly branched) PP Hard, flexible plastic. Ketchup 5 (Polypropylene) bottles, medicine bottles, PP aerosol caps, drinking straws PS (Polystyrene) Rigid and brittle plastic. CD jackets, grocery store meat trays, pill bottles, foam packaging peanuts and plastic tableware, take-out containers Other plastics include nylon, acrylic and others. large refillable water jugs, certain "green" food containers. PS HC-CH HC. O (Other) Various monomers and mixtures