Problems and exercisesDimerization and Polymerization
1. Types of polymerization
Which type of polymerization (cationic, anionic or radical) is best for each monomer? a) isobutylene, (CH3)2C=CH2; b) methyl 2-cyanoacrylate, CH2=C(CN)COOCH3; c) ethylene at high pressure.
2. The repeating unit
Write the repeating unit of polypropylene, poly(vinyl chloride) (PVC) and polystyrene.
3. Ziegler-Natta
What advantage do Ziegler-Natta catalysts (TiCl4/Al(CH2CH3)3) have in the polymerization of propylene?