VULCANISATION OF RUBBER

The diagram below shows the process of making vulcanized rubber from latex.

1.

name the monomer for natural rubber : ____________2. What is substance X?3. (a) What is process Y?

(b) Explain briefly how process Y can be carried out?Solid rubber is _______________ with ______________

4. What happens to the rubber molecules during process Y?The rubber molecules are linked by ___________ atoms.

5. Draw diagram in the box provided to show the structure of vulcanized rubber molecules.

6. State 2 advantages of vulcanized rubber as compared with natural rubber.

7. Compare vulcanized rubber with unvulcanised rubber

LatexSolid

rubberVulcanised

rubberSubstance X Process Y

vulcanized rubber unvulcanised rubber( natural rubber)