Disposal of Addition Polymers
- Addition polymers are formed by the joining up of many small molecules with strong C-C bonds
- This makes addition polymers unreactive and chemically inert so don’t easily biodegrade
Disposal of addition polymers is an environmental problem
Landfills
- Waste polymers are disposed off in landfill sites but this takes up valuable land, as addition polymers are non-biodegradable so micro-organisms such as decomposers cannot break them down
- This causes sites to quickly fill up
Incineration
- Polymers release a lot of heat energy when they burn and produces carbon dioxide which is a greenhouse gas that contributes to climate change
- Polymers that contain chlorine such as PVC release toxic hydrogen chloride gas when burned
- If incinerated by incomplete combustion, carbon monoxide will be produced which is a toxic gas that reduces the capacity of the blood to carry oxygen
Recycling
- Polymers can be recycled but different polymers must be separated from each other
- This process is difficult and expensive
