Question 1:
Name two natural polymers and synthetic polymers and their monomers.
Answer:
Name two natural polymers and synthetic polymers and their monomers.
Answer:
Question 2:
Compare the properties of natural rubber and vulcanised rubber.
Answer:
Compare the properties of natural rubber and vulcanised rubber.
Answer:
Question 3:
Describe how vulcanised rubber is produced from natural rubber.
Answer:
Heating natural rubber with sulphur
• Natural rubber is heated at a temperature between 100°C to 150°C at high pressure
• 3% to 5% sulphur is added to the heated rubber
Describe how vulcanised rubber is produced from natural rubber.
Answer:
Heating natural rubber with sulphur
• Natural rubber is heated at a temperature between 100°C to 150°C at high pressure
• 3% to 5% sulphur is added to the heated rubber