1. 8.7.1 Kevlar 8.7 Specialised Polymers
LO: I understand how the uses of kevlar are related to its properties

2. The linear chains of kevlar are held together by bonding.
Kevlar is a
polyamide
The linear chains of kevlar are held together by bonding.
hydrogen
Properties:
Uses:
light weight
bullet-proof vests
strong
crash helmets
durable
spacesuits
LO: I understand how the uses of kevlar are related to its properties

3. 8.7.2 Polyethenol
LO: I understand how the properties of polyethenol relate to its uses.

4. Polyethenol is a polymer
water soluble
The solubility of polyethenol can be varied by changing the number of groups present.
hydroxyl
ester exchange
This happens in a process called .
ester
exchange
Uses of polyethenol:
surgical stitches
hospital laundry bags
LO: I understand how the properties of polyethenol relate to its uses.

5. Polyethyne
LO: I understand how polyethyne conducts electricity.

6. Polyethyne is an electrical .
conductor
It’s conductivity is the result of electrons that can move along the carbon chain.
delocalised
LO: I understand how polyethyne conducts electricity.