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Monomers and Polymers

Monomers and Polymers. Ethene. This molecule is called POLYETHENE, and the process that made it is called POLYMERISATION. Ethene is called a MONOMER because it is just one small molecule. We can use ethene to make plastics…. Step 1: Break the double bond.

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Monomers and Polymers

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  1. Monomers and Polymers Ethene This molecule is called POLYETHENE, and the process that made it is called POLYMERISATION Ethene is called a MONOMER because it is just one small molecule. We can use ethene to make plastics… Step 1: Break the double bond Step 2: Add the molecules together at high temperature & pressure:

  2. Another way of drawing it… H H H H C C C C H H H H Ethene Ethene Poly(e)thene H H H H C C C C H H H H n C C n C C C C CH3 CH3 H H n C C n H H H H Instead of circles, let’s use letters… General formula for addition polymerisation: polythene Ethene monomers polypropene Propene monomers

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