0973 11 Organic chemistry SUPPLEMENT 2

Front

What is a polymer?

Back

A very large molecule that's made up of many small units bonded together

Front

What is polymerisation?

Back

The process of using small molecules (monomers) to make long chain molecules (polymers)

Front

What type of bonds join the atoms in a polymer?

Back

covalent bonds

Front

Why are many polymers solid at room temperature?

Back

because they have a large mass and relatively strong intermolecular forces which require a lot of energy to break

Front

What are the two types of polymerisation?

Back

Addition and condensation

Front

How many products are there in addition polymerisation?

Back

1

Front

How is the name of an addition polymer worked out?

Back

the word ‘poly’ is put before the name of the monomer in brackets, e.g: ethene — poly(ethene)

Front

How is the repeating unit for an addition polymer drawn from its monomer?

Back

1. Copy the atoms in the monomer, but change the carbon-carbon double bond to a single bond 2. Draw an additional single bond to the side of each carbon atom 3. Draw brackets around the unit and write an 'n' to the right of it

Front

What monomers are involved in addition polymerisation?

Back

Alkenes

Front

What is the monomer of poly(ethene)?

Back

ethene