Problems and exercisesPolymerization
1. 1,2- and 1,4-polymerization
Write the repeating unit of polybutadiene obtained by 1,2-addition and by 1,4-addition.
2. Natural rubber
What is the structure of natural rubber? How does it differ from gutta-percha?
3. Vulcanization
Why is vulcanized rubber stronger and more elastic than natural rubber?