Polymers 2

Question 1

What are the 5 regions of viscoelastic?

Answer 1

glassy , transition, rubbery, rubbery flow, liquid

Question 2

Does increase in temp and plasticisers increase or decrease inter chain bonding?

Answer 2

decrease

Question 3

What are plasticisers?

Answer 3

small molecules that dissolve in the polymer and interact with it

Question 4

What are glassy polymers like?

Answer 4

hard and brittle

Question 5

Give the properties of transition polymers and what is Tg?

Answer 5

flexible leathery not brittle

Tg= glass transition temp

Question 6

What is the characteristics of rubbery and rubbery flow polymers?

Answer 6

rubbery - like elastic band

rubbery flow - like blue tac deforms under pressure