addition polymerisation

Define Monomer and polymer

Polymer also called plastics or synethics are long chain organic molecules

The simplest unit of a polymer is a monomer

Outline process of additon polymerisaiton

1. Initiation - free radical is added to the monomer (by dissociating the double bond) forming a new free radical species

2. Propagation - this new free radical fidns another monomer unti it and repeats

3. Termination - Eventually the growing free radical comes into contact with another and the upaired electrons come together to form a covalent bond connecting the chains

Use examples such as polyethene, to describe polymerisation

e.g plastic bag

Use examples such as Polyproplyene to describe polymerisation

e.g rope

Use examples such as Polytetrafluoroethlyene to describe polymerisation

e.g Pan