Alkenes ( polymerisation of alkenes) Flashcards
0
Q
What is an addition polymerisation reaction?
A
Where two or more molecules join together to give a single product.
1
Q
Name three uses of polymers:
A
- Polyethene: is used for plastic bags and crates.
- Polypropene: is plastic tubing.
- Polychloroethene: is used in waterproof clothing.
2
Q
How are addition polymers formed from alkenes?
A
When catalysed and heated under pressure, unsaturated alkenes link together when half of the broken double bond opens to form a single C-C bond. The spare bonds from the Carbon double bond are used to join up the molecules.
3
Q
Name an advantage of Polypropene:
A
It can be recycled.
4
Q
Why are polyalkenes are unreactive?
A
Because of their strong C-C bonds. They are not biodegradable.
