Date post: | 03-Jan-2016 |
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Polymer Products
Plastic bagPolymer: Low-density poly(ethene) (LDPE)
Polymerisation at high temperature and pressure
Plastic bottlePolymer: High-density poly(ethene) (HDPE)
Catalyst allows polymerisation to occur at lower temperature and pressure
Plastic cratePolymer: isotactic poly(propene)
Close-packed chains produce strong polymer
Road paint (lines)Polymer: atactic poly(propene)
Loosely-packed chains produce softer polymer
Cling filmPolymer: poly(vinyl chloride) (PVC) or low-density poly(ethene) (LDPE)Plasticiser and extremely thin sheets produce stretchy, clingy material
Double-glazed window edgesPolymer: poly(chloroethene) (PVC)
No plasticiser produces a rigid polymer
Electrical cable insulationPolymer: poly(chloroethene) (PVC)
Addition of plasticiser produces a flexible polymer
Non-stick panPoly(tetrafluoroethene) (PTFE)
Carbon-fluorine bonds create useful non-stick property