8.2 Types of Polymerization Reactions - Addition Polymerization or Chain Growth Polymerization - Ionic Polymerization, Free Radical Mechanism - Preparation of Addition Polymers – Polythene, Teflon and Polyacrylonitrile - Condensation Polymerization or Step Growth Polymerization – Poly amides - Preparation of Nylon 6,6 and Nylon 6 – Polyesters – Terylene – Bakelite, Melamine, Formaldehyde Polymer – Copolymerisation – Rubber - Natural Rubber - Vulcanization of Rubber - Synthetic Rubbers - Preparation of Neoprene and Buna-n