Addition and Condensation Polymerisation

Question 1

What is addition polymerisation?

Answer 1

When the double bonds in an unsaturated monomer (alkene) are broken with pressure and a catalyst and “add together” to form a polymer

Question 2

What key thing happens in an addition reaction?

Answer 2

The monomers bond without the loss of any atom or molecule - only the polymer is formed

Question 3

Give the properties of addition polymers. (3)

Answer 3

1. Chemically inert
2. Non-biodegradable
3. Hard to recycle

Question 4

What is condensation polymerisation?

Answer 4

When two types of polymers containing different functional groups react to form alternating links in a polymer chain

Question 5

What key thing happens in a condensation reaction? (2)

Answer 5

1. For each new bond that forms, a small molecule is lost (e.g H20 or CO2)
2. The monomers of the polymer will always keep their carbon chain and the link that forms between them (e.g. ester link, amide link)`

Question 6

What is a polyester?

Answer 6

A polymer formed from the condensation reaction between a dicarboxylic acid (two carboxylic acid groups -COOH) and a diol ( two alcohol groups -OH)

Question 7

What is am ester?

Answer 7

An organic compound that forms when an alcohol reacts with a carboxylic acid

Question 8

What is an amide?

Answer 8

An organic compound that form when a carboxylic acid reacts with an amine

Question 9

What is a polyamine?

Answer 9

A polymer formed from the condensation reaction between a dicarboxylic acid (two carboxylic acid groopus -COOH) and a diamine (two amine groups -NH2)

Question 10

Give the properties of condensation polymers (2)

Answer 10

1. Biodegradable

2. Can be recycled