Polymers

Free radical polymerization ✘ Cationic polymerization ✘ Anionic polymerization ✘ Ziegler-Natta polymerization ✔ NULL ✔ NULL NULL

PVC ✘ PVA ✘ Bakelite ✘ None of these ✔ NULL ✔ NULL NULL

Rubber ✘ Protein ✘ PVC ✘ Polythene ✔ NULL ✔ NULL NULL

-isoprene ✘ -isoprene ✘ -and -isoprene ✘ None of these ✔ NULL ✔ NULL NULL

Polythene ✘ polysaccharides ✘ Nylon ✘ Terylene ✔ NULL ✔ NULL NULL

Polythene ✘ Teflon ✘ PVC ✘ Nylon-6, 6 ✔ NULL ✔ NULL NULL

Fluorine ✘ Chlorine ✘ Bromine ✘ Iodine ✔ NULL ✔ NULL NULL

Polystyrene ✘ Neoprene ✘ PAN ✘ Polyethylene terephthalate ✔ NULL ✔ NULL NULL

Polyester ✘ Polyurethane ✘ Polyamide ✘ Polypropylene ✔ NULL ✔ NULL NULL

Butyl rubber ✘ Buna-S ✘ Buna-N ✘ Thiokol ✔ NULL ✔ NULL NULL