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This question is about polymers - AQA - GCSE Chemistry - Question 6 - 2018 - Paper 2
Question 6
This question is about polymers. 06.1 Polyester are produced when monomers join together and lose a small molecule. Name the small molecule lost. 06.2 Poly(propene... show full transcript
Worked Solution & Example Answer:This question is about polymers - AQA - GCSE Chemistry - Question 6 - 2018 - Paper 2
Step 1
Step 2
Step 3
Suggest why the mixture of poly(propene) and wool is more sustainable.
Answer
Using a mixture of poly(propene) and wool is more sustainable because:
- Resource Utilization: Poly(propene) is derived from non-renewable sources, while wool is renewable, making the mixture utilize resources more efficiently.
- Environmental Impact: Mixed carpets can reduce the need for frequent replacements, leading to less waste in landfills compared to using only poly(propene) which is non-biodegradable.
Step 4
Evaluate the suitability of poly(propene) and polyester for firefighter uniforms.
Answer
Polyester is more suitable for firefighter uniforms due to several advantages:
- Flame Resistance: Polyester has better flame resistance, which is crucial for ensuring the safety of firefighters.
- Higher Melting Point: With a melting point of 260°C, polyester retains its structure longer under extreme heat conditions.
- Less Likely to Ignite: Its properties make it less likely to catch fire compared to poly(propene).
However, poly(propene) should not be entirely discounted as it may offer comfort benefits, but overall, polyester is the superior choice based on its thermal properties.