Specification Point 4.44:
Know that an addition polymer is formed by joining up many small molecules called monomers
Monomer: The unit molecule from which a polymer is made
Formation of addition polymers:
- Addition polymers are formed by the joining up of many small molecules called monomers.
- Alkenes can act as monomers as they are unsaturated so the double bond can break and bond with other monomers.
Examples: Formation of poly(chloroethene)
The formation of poly(chloroethene) from the joining of many chloroethene monomers
There are two types of polymers:
- Natural Polymers.
e.g.: starch, carbohydrate, fat, protein etc.
- Synthetic polymers (Man-made polymers).
e.g.: polythene, polypropene, polychloroethene (PVC), polystyrene, nylon, terylene.
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Jamie got a First class degree in Chemistry from Oxford University before going on to teach chemistry full time as a professional tutor. He’s put together these handy revision notes to match the Edexcel IGCSE Chemistry specification so you can learn exactly what you need to know for your exams.
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