Chemistry · May / June 2019 · Paper 11 · Question 40

The monomer used to manufacture polystyrene is shown. [structure: CH2=CH(C6H5)] By which type of polymerisation is polystyrene formed and what is a possible partial structure of the polymer?

1. Aaddition; partial structure with alternating shaded and H substituents
2. Baddition; partial structure with shaded substituents on alternating carbons
3. Ccondensation; partial structure with shaded substituents on alternating carbons
4. Dcondensation; partial structure with shaded substituents on every carbon

As printed in the paper