Chemistry Addition polymerisation

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  1. Background
    • Addition polymers are formed from alkenes which are monomers
    • Polymerisation frequently uses high pressure heat and a catalyst
  2. What happens?
    • The double bond open out to link all monomers together with single bonds
    • The electrons in the pi bonds form new sigma bonds
    • They go from unsaturated monomers to saturated polymers
  3. Problems with polmers?
    • They have non-polar bonds or strong bonds making them unreactive so they are not biodegradable
    • Burning them gives off toxic gasses.
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147630
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Chemistry Addition polymerisation
Description
Addition polymerisation
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