Types Of Polymerisation Reactions

Step 1: Understanding the Concept:
Chain growth polymers are formed by addition polymerization of unsaturated monomers.

Step 2: Detailed Explanation:
Teflon (polytetrafluoroethylene) is formed by addition polymerization of CF =CF (chain growth). Nylon-6 and Nylon-66 are step growth polymers (condensation). Bakelite is also step growth.

Step 3: Final Answer:
Teflon