3.3.4.3 Addition polymers

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Ebi

Cards (10)

  • Define monomer
    Small molecules that join together to make a repeatable unit polymer
  • Define polymer
    Compound chained molecule made up of many monomers chemically bonded together
  • Define addition polymerisation
    Compound with C=C bond joined together
  • Property of polyethene
    No branches, closely packed together, stronger VDW, rigid more dense
  • Property of polystyrene
    Large branches not closely packed together, weak VDW between chains, less dense and flexible
  • Property of poly chloroethene (PVC)
    No branches, closely packed together causing them to be rigid, strong dipole-dipole, polar bond of C-CI, high melting point, layers don't slide
  • Property of plasticisers
    Chemical added that disrupt the layers, weaker VDW, easier to stretch
  • Property of polytetrafluoroethene
    Unreactive, H-F bonds very strong, hard to break, IMF prevents attraction-repelling most other molecules due to high partial charge
  • Name the akenes
    Polyethene, PVC, polystyrene, plasticisers
  • Name for PVC
    Polychloroethene