polymers

Question 1

what determines the properties of plastics

Answer 1

the forces between molecules

Question 2

what are the properties of thermosoftening polymers

Answer 2

• no cross links between chains
• easy to melt
• cools to make a new shape

Question 3

what are the properties of thermosetting polymers

Answer 3

• have crosslinks
• solid structure
• strong, hard and rigid

Question 4

what affects the property of a polymer

Answer 4

• the starting materials

- the reaction conditions

Question 5

what does low density polyethene make

Answer 5

-bags etc due to the flexibility

Question 6

what does high density polyethene make

Answer 6

drain pipes due to the rigid