Polymers

Question 1

Polymer

Answer 1

Substance made up of very long molecules containing repeating groups of atoms.

E.g. Rubber, DNA, proteins, starch and cellulose

Question 2

Vulcanisation

Answer 2

When rubber is heated with sulfur and cross-links are made which makes the rubber harder and tougher.
Stops properties changing with temperature.

Question 3

Synthetic polymer

Answer 3

Raw materials obtained from crude oil.

Question 4

Polymerisation

Answer 4

Monomers join together in chains.

-> exothermic reaction