Addition polymers are formed from alkenes and substituted alkenes.
Poly(alkenes) like alkanes are unreactive (chemically inert and therefore non-biodegradable).
Appreciate that knowledge and understanding of the production and properties of polymers has developed over time.
Typical uses of poly(ethene) and poly(propene) and know that poly(propene) is recycled
[New syllabus from 2015] Typical uses of poly(chloroethene), commonly known as PVC, and how its properties can be modified using a plasticiser.
Students should be able to:
• draw the repeating unit from a monomer structure
• draw the repeating unit from a section of the polymer chain
• draw the structure of the monomer from a section of the polymer.
Assessment and practical opportunities
Making poly(phenylethene) from phenylethene.