Alkenes

Question 1

Disposal of polymers

Answer 1

1. Combustion
2. Landfill
3. Electricity generation
4. Reuse
5. Recycle
6. Organic Feedstock

Question 2

What are the disadvantages of recycling?

Answer 2

1. Plastics must be sorted into different types
2. Expensive
3. Labour intensive
4. Requires high technology

Question 3

How do photodegradable polymers break down?

Answer 3

They are broken down chemically using energy with wavelengths similar to light. Once the breakdown begins it is not possible to stop the process.

Question 4

Explain what happens in organic feedstock.

Answer 4

Plastics are separated and broken down into small organic molecules through a series of reactions. The molecules can then be used to produce plastics and in other Industries.

Question 5

Give a disadvantage of photo degradable polymers.

Answer 5

May not be exposed to sufficient light.

Question 6

What can poly(ethene) be used in?

Answer 6

1. Plastic Bags
2. Plastic Bottles

Question 7

What can poly(propene) be used in?

Answer 7

1. Carpets
2. Rugs

Question 8

What can poly(phenylethene) be used in? Also known as polystyrene.

Answer 8

Packing Materials

Question 9

What can poly(chloroethene) be used in? Also known as PVC.

Answer 9

1. Pipes
2. Door frames

Question 10

What can poly(tetrafluoroethene) be used in? Also known as PTFE/Teflon

Answer 10

Non-stick kitchenware.

Question 11

What can poly(methyl-2-cyanopropenoate) be used in? Also known as Super Glue.

Answer 11

Super glue

Question 12

What can poly(methyl 2-methyl propenoate) be used in? Also known as PMMA/Perspex.

Answer 12

Plastic Window.