Addition polymers Flashcards
Information on some widely used addition polymers
What are some
Addition polymers properties
- All polymers are long-chain molecules made by joining together a large number of monomer molecules.
- Addition polymers are made from a single monomer.
- Addition polymerisation involves monomer molecules that contain a C=C double bond.
- During addition, the double bonds open up and the molecules join to themselves to make a molecule with a very long chain.
What’s the monomer in
Poly(ethene)
(Polyethylene, polythene, PE)
Ethene CH₂=CH₂
Properties: tough, durable
Examples of use: plastic bags, bowls, bottles, packaging
What’s the monomer in
Poly(propene)
(Polypropylene, PP)
Propene CH₃CH=CH₂
Properties: tough, durable
Examples of use: crates and boxes, plastic rope
What’s the monomer in
Poly(chloroethene)
(Polyvinyl chloride, PVC)
Chloroethene CH₂=CHCl
Properties: strong, hard (not as flexible as polythene)
Examples of use: insulation, pipes and guttering
What’s the monomer in
Poly(tetrafluoroethene)
(Polytetrafluoroethylene, Teflon, PTFE)
Tetrafluoroethene CF₂=CF₂
Properties: non-stick surface, withstands high temperatures
Examples of use: non-stick frying pans, non-stick taps and joints
What’s the monomer in
Poly(phenylethene)
(Polystyrene, PS)
Phenylethene (styrene) C₆H₅CH=CH₂
Properties: light, poor conductor of heat
Examples of use: insulation, packaging (foam)
