Teflon, used for non stick coatings, is a polymer of
Correct answer: A. tetrafluoroethene
- A. tetrafluoroethene
- B. chloroethene
- C. propene
- D. styrene
Explanation
Every hydrogen of ethene is replaced by fluorine, and the resulting carbon to fluorine bonds are so strong and the surface so non polar that the polymer is chemically inert, heat resistant and extremely slippery. This is why teflon is used in cookware and in laboratory taps and seals. Chloroethene gives PVC and styrene gives polystyrene.
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About Polymers
Polymers are large molecules made from repeating monomer units joined by covalent bonds. The topic distinguishes addition polymers such as polyethylene, PVC and polystyrene from condensation polymers such as nylon and polyester, and relates chain structure to thermoplastics, thermosetting polymers, elastomers, properties, uses and environmental concerns.
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